Merge branch 'release/1.5.6'

Updated CHANGELOG
Rollcall: Fixed SWADroid allows multiple simultaneous submissions of the attendance list (#263 )
2019-11-05 21:02:32 +01:00 · 2019-11-05 21:02:16 +01:00 · 2019-11-05 20:53:15 +01:00 · 2019-11-04 19:57:17 +01:00 · 2019-10-26 18:41:27 +02:00 · 2019-10-26 18:33:16 +02:00
75 changed files with 813 additions and 781 deletions
--- a/.github/CODE_OF_CONDUCT.md
+++ b/.github/CODE_OF_CONDUCT.md
@ -0,0 +1,46 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as contributors and maintainers pledge to making participation in our project and our community a harassment-free experience for everyone, regardless of age, body size, disability, ethnicity, gender identity and expression, level of experience, nationality, personal appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable behavior and are expected to take appropriate and fair corrective action in response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or reject comments, commits, code, wiki edits, issues, and other contributions that are not aligned to this Code of Conduct, or to ban temporarily or permanently any contributor for other behaviors that they deem inappropriate, threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces when an individual is representing the project or its community. Examples of representing a project or community include using an official project e-mail address, posting via an official social media account, or acting as an appointed representative at an online or offline event. Representation of a project may be further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by contacting the project team at swadroid@gmail.com. The project team will review and investigate all complaints, and will respond in a way that it deems appropriate to the circumstances. The project team is obligated to maintain confidentiality with regard to the reporter of an incident. Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good faith may face temporary or permanent repercussions as determined by other members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4, available at [http://contributor-covenant.org/version/1/4][version]
+
+[homepage]: http://contributor-covenant.org
+[version]: http://contributor-covenant.org/version/1/4/
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@ -0,0 +1,13 @@
+## Contributing to SWADroid
+
+*Before opening a pull request*, consider:
+
+- Is the change important and ready enough to ask the community to spend time reviewing?
+- Have you searched for existing, related GitHub issues and pull requests?
+- Is the change being proposed clearly explained and motivated?
+
+When you contribute code, you affirm that the contribution is your original work and that you 
+license the work to the project under the project's open source license. Whether or not you 
+state this explicitly, by submitting any copyrighted material via pull request, email, or 
+other means you agree to license the material under the project's open source license and 
+warrant that you have the legal authority to do so.
--- a/.github/ISSUE_TEMPLATE/bug_report.md
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@ -0,0 +1,35 @@
+---
+name: Bug report
+about: Create a report to help us improve
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Desktop (please complete the following information):**
+ - OS: [e.g. iOS]
+ - Browser [e.g. chrome, safari]
+ - Version [e.g. 22]
+
+**Smartphone (please complete the following information):**
+ - Device: [e.g. iPhone6]
+ - OS: [e.g. iOS8.1]
+ - Browser [e.g. stock browser, safari]
+ - Version [e.g. 22]
+
+**Additional context**
+Add any other context about the problem here.
--- a/.github/ISSUE_TEMPLATE/feature_request.md
+++ b/.github/ISSUE_TEMPLATE/feature_request.md
@ -0,0 +1,17 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@ -0,0 +1,10 @@
+## What changes were proposed in this pull request?
+
+(Please fill in changes proposed in this fix)
+
+## How was this patch tested?
+
+(Please explain how this patch was tested. E.g. unit tests, integration tests, manual tests)
+(If this patch involves UI changes, please attach a screenshot; otherwise, remove this)
+
+Please review https://github.com/Amab/SWADroid/blob/develop/CONTRIBUTING.md before opening a pull request.
--- a/.gitignore
+++ b/.gitignore
@ -1,10 +1,58 @@
-.idea
-.gradle
-build
-import-summary.txt
+# Built application files
+*.apk
+*.ap_
+*.aab
+
+# Files for the ART/Dalvik VM
+*.dex
+
+# Java class files
+*.class
+
+# Generated files
+bin/
+gen/
+out/
+
+# Gradle files
+.gradle/
+build/
+
+# Local configuration file (sdk path, etc)
 local.properties
-/SWADroid/SWADroid-SWADroid.iml
-/SWADroid.iml
-app/lint.xml
-/SWADroid/google-services.json
 keystore.properties
+
+# Proguard folder generated by Eclipse
+proguard/
+
+# Log Files
+*.log
+
+# Android Studio Navigation editor temp files
+.navigation/
+
+# Android Studio captures folder
+captures/
+
+# IntelliJ
+*.iml
+.idea/
+
+# Keystore files
+# Uncomment the following lines if you do not want to check your keystore files in.
+*.jks
+*.keystore
+
+# External native build folder generated in Android Studio 2.2 and later
+.externalNativeBuild
+
+# Google Services (e.g. APIs or Firebase)
+# google-services.json
+
+# lint
+lint/intermediates/
+lint/generated/
+lint/outputs/
+lint/tmp/
+# lint/reports/
+/SWADroid/src/debug/
--- a/.travis.yml
+++ b/.travis.yml
@ -1,19 +1,57 @@
+sudo: false
 language: android
-jdk:
- oraclejdk8
-android:
-  components:
-  - tools
-  - tools
-  - platform-tools
-  - build-tools-27.0.3
-  - android-27
-  - extra-android-m2repository
-  - extra-android-support
-  - extra-google-m2repository
-  - extra-google-google_play_services
-script:
- "./gradlew build connectedCheck"
+jdk: oraclejdk8
+env:
+  global:
+  - ANDROID_API=29
+  - ANDROID_BUILD_TOOLS=29.0.2
+  - secure: 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
+  - secure: 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
+  - secure: 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
+before_cache:
+- rm -f  $HOME/.gradle/caches/modules-2/modules-2.lock
+- rm -rf $HOME/.gradle/caches/*/plugin-resolution/
+cache:
+  directories:
+  - "$HOME/.gradle/caches/"
+  - "$HOME/.gradle/wrapper/"
+  - "$HOME/.android/build-cache"
 before_install:
+- openssl aes-256-cbc -K $encrypted_b7f76037f2f7_key -iv $encrypted_b7f76037f2f7_iv
+  -in $TRAVIS_BUILD_DIR/SWADroid/src/prod/google-services.json.enc -out $TRAVIS_BUILD_DIR/SWADroid/src/prod/google-services.json
+  -d
+- yes | sdkmanager "build-tools;${ANDROID_BUILD_TOOLS}"
+- yes | sdkmanager "platform-tools"
+- yes | sdkmanager "tools"
+- yes | sdkmanager "platforms;android-${ANDROID_API}"
+- yes | sdkmanager "extras;android;m2repository"
+- yes | sdkmanager --list
 - chmod +x gradlew
- yes | sdkmanager "platforms;android-27"
+script:
+- "./gradlew clean test build connectedCheck -Pbuild=prod"
+after_failure: cat $TRAVIS_BUILD_DIR/SWADroid/build/reports/lint-results.xml
+before_deploy:
+- openssl aes-256-cbc -K $encrypted_855ad244b8b2_key -iv $encrypted_855ad244b8b2_iv
+  -in keystore.jks.enc -out keystore.jks -d
+- cd SWADroid/build/outputs/apk/release
+- jarsigner -sigalg SHA1withRSA -digestalg SHA1 -keystore ${TRAVIS_BUILD_DIR}/keystore.jks
+  -storepass $storepass -keypass $keypass SWADroid-release-unsigned.apk amab
+- jarsigner -verify SWADroid-release-unsigned.apk
+- "${ANDROID_HOME}/build-tools/${ANDROID_BUILD_TOOLS}/zipalign -p 4 SWADroid-release-unsigned.apk
+  SWADroid-release.apk"
+deploy:
+  provider: releases
+  api_key:
+    secure: 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
+  file: "$TRAVIS_BUILD_DIR/SWADroid/build/outputs/apk/release/SWADroid-release.apk"
+  skip_cleanup: true
+  name: SWADroid $TRAVIS_TAG
+  body: Automated release from Travis CI.
+  target_commitsh: "$TRAVIS_COMMIT"
+  on:
+    tags: true
+    repo: Amab/SWADroid
+    branch: master
+notifications:
+  slack:
+    secure: FDRqQsWyWvSg3uXYV1jtxh209yYdE9wqMRx2Jmf9ivRMowSDqAfLaOD8hlAjD/DnBCBhVpSkOzT4+treByU1qpLXcWBpewl1GukK3jD6AoqD4Xtmp3xOAJsG1BvqeYp48Q95lZFgZ8WxV2IXO4/rAi3GcCDKVYGs3fEEwk/aVEfFDyHE7oT+mruZqrFHbwcPbObTucJWjFLu+VdCSdJ6HTN/gm/04TVg5ox0fqeyxqyAxW3QOEu/2EUOZ78ijrab7+Cn32KluoTlTDJY0+iSszYQll08+g2LsJruyzqWJzp8y0jZMs23e63ge16WrnzCHknTFIUXNG8/OVwCb2gsBA+RIchqEWLiKuOPtkSTZoMCqulDPYVOdGBJbv1CdJW4TKNmnLfsA9EMHlcv+50zcz7rq9115i4qPsous0gKw8Bc+tSL3S28YP81J8UmvTeQjAPgC7iQIeXHNvPpM62hP2v/sK9BUhmsfrFopeQGPVY5vLKXvAF+dJHuyUNK1T17iVyxa55D9Et6QeHqLsHgLKUx22RW128a0FuaFwD1EIKNuj0q+Fn8DNcXtyHoKVdGCD/K3nbDPwx+IsIvHTJfPwDL/cX8eXj+ggK32nuJVQwXLDMloz3xFKe+wO19/7kMzyKQD4Brq4xX2qQ3fiE5uRj6BIxJ2q8wuey3uuJMPVA=
--- a/README.md
+++ b/README.md
@ -5,18 +5,21 @@ Android client for e-learning platform [![SWADroid](https://openswad.org/logo/sw

 [![SWADroid](http://developer.android.com/images/brand/en_generic_rgb_wo_45.png)](https://play.google.com/store/apps/details?id=es.ugr.swad.swadroid)

-	Code: `git clone https://github.com/Amab/SWADroid.git`
-	Issue tracker: https://github.com/Amab/SWADroid/issues
-
-[![SWADroid](http://upload.wikimedia.org/wikipedia/commons/c/c8/Farm-Fresh_twitter_1.png)](http://twitter.com/SWADroid)[![SWADroid](http://upload.wikimedia.org/wikipedia/commons/4/4d/Farm-Fresh_facebook.png)](https://www.facebook.com/SWADroid)[![SWADroid](http://upload.wikimedia.org/wikipedia/commons/b/ba/Google_plus_32.png)](https://plus.google.com/115615684349730524355/posts)[![SWADroid](https://upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Telegram_Messenger.png/35px-Telegram_Messenger.png?uselang=es)](https://telegram.me/swadroid)[![SWADroid](https://s.w.org/about/images/logos/wordpress-logo-32-blue.png)](http://swadroid.wordpress.com)
+[![SWADroid](http://upload.wikimedia.org/wikipedia/commons/c/c8/Farm-Fresh_twitter_1.png)](http://twitter.com/SWADroid)[![SWADroid](http://upload.wikimedia.org/wikipedia/commons/4/4d/Farm-Fresh_facebook.png)](https://www.facebook.com/SWADroid)[![SWADroid](https://upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Telegram_Messenger.png/35px-Telegram_Messenger.png?uselang=es)](https://telegram.me/swadroid)[![SWADroid](https://s.w.org/about/images/logos/wordpress-logo-32-blue.png)](http://swadroid.wordpress.com)

 CI Status
 ---------

 |Branch|CI status|
 |------|---------|
-|develop|[![Build Status](https://travis-ci.org/Amab/SWADroid.svg?branch=develop)](https://travis-ci.org/Amab/SWADroid)|
-|master|[![Build Status](https://travis-ci.org/Amab/SWADroid.svg?branch=master)](https://travis-ci.org/Amab/SWADroid)|
+|develop|[![Build Status](https://travis-ci.com/Amab/SWADroid.svg?branch=develop)](https://travis-ci.com/Amab/SWADroid)|
+|master|[![Build Status](https://travis-ci.com/Amab/SWADroid.svg?branch=master)](https://travis-ci.com/Amab/SWADroid)|
+
+[![Releases](https://img.shields.io/github/release/Amab/SWADroid.svg)](https://github.com/Amab/SWADroid/releases/latest)
+[![Dependabot Status](https://api.dependabot.com/badges/status?host=github&repo=Amab/SWADroid)](https://dependabot.com)
+[![libraries.io](https://img.shields.io/librariesio/github/Amab/SWADroid.svg)](https://libraries.io/github/Amab/SWADroid)
+[![codecov](https://codecov.io/gh/Amab/SWADroid/branch/develop/graph/badge.svg)](https://codecov.io/gh/Amab/SWADroid)
+[![Codacy Badge](https://api.codacy.com/project/badge/Grade/41ded03ee87d4ceaaafc976a7529bcf3)](https://www.codacy.com/manual/Amab/SWADroid?utm_source=github.com&amp;utm_medium=referral&amp;utm_content=Amab/SWADroid&amp;utm_campaign=Badge_Grade)

 Copyright and License
 ---------------------
@ -57,4 +60,4 @@ Contributing

 SWADroid is an open source project. I encourage contributions.

-The Github team has also been kind enough to write up some great [documentation](https://help.github.com/articles/about-pull-requests/) on working with pull requests. Contributions should be performed on [topic branches](http://progit.org/book/ch3-4.html) in your personal forks - just issue your pull requests from there.
+The Github team has also been kind enough to write up some great [documentation](https://help.github.com/articles/about-pull-requests/) on working with pull requests.
--- a/SWADroid.iml
+++ b/SWADroid.iml
@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module external.linked.project.id="SWADroid" external.linked.project.path="$MODULE_DIR$" external.root.project.path="$MODULE_DIR$" external.system.id="GRADLE" external.system.module.group="" external.system.module.version="unspecified" type="JAVA_MODULE" version="4">
-  <component name="FacetManager">
-    <facet type="java-gradle" name="Java-Gradle">
-      <configuration>
-        <option name="BUILD_FOLDER_PATH" value="$MODULE_DIR$/build" />
-        <option name="BUILDABLE" value="false" />
-      </configuration>
-    </facet>
-  </component>
-  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_7" inherit-compiler-output="true">
-    <exclude-output />
-    <content url="file://$MODULE_DIR$">
-      <excludeFolder url="file://$MODULE_DIR$/.gradle" />
-    </content>
-    <orderEntry type="jdk" jdkName="1.8" jdkType="JavaSDK" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-</module>
--- a/SWADroid/build.gradle
+++ b/SWADroid/build.gradle
@ -1,16 +1,51 @@
 apply plugin: 'com.android.application'
+apply plugin: 'com.google.gms.google-services'
+
+import org.ajoberstar.grgit.Grgit

 ext {
-    git = org.ajoberstar.grgit.Grgit.open()
+    git = Grgit.open()
    gitVersionCode = git.tag.list().size()
    gitVersionName = "${git.describe()}"
+}

-    travisBuild = System.getenv("TRAVIS") == "true"
+//return a BuildConfigField from a properties file.
+def static getBuildConfigField(String property){
+    def travisBuild = System.getenv("TRAVIS") == "true"
+    def value
+
+    if(travisBuild) {
+        value = "\"" + System.getenv(property) + "\""
+    } else {
+        Properties properties = new Properties()
+        properties.load(new FileInputStream("keystore.properties"))
+        value = "\"" + properties.getProperty(property) + "\""
+    }
+
+    return value
+}
+
+def build_param = "${build}"
+
+if (build_param != "prod") {
+    //exclude development build
+    android.variantFilter { variant ->
+        if (variant.buildType.name == 'prod') {
+            variant.setIgnore(true)
+        }
+    }
+} else {
+    //exclude all except development build
+    android.variantFilter { variant ->
+        if (variant.buildType.name != 'prod') {
+            variant.setIgnore(true)
+        }
+    }
 }

 android {
-    compileSdkVersion 27
-    buildToolsVersion "27.0.3"
+    compileSdkVersion "android-29"
+    buildToolsVersion '29.0.2'

    dexOptions {
        maxProcessCount=2
@ -26,62 +61,31 @@ android {
        versionCode gitVersionCode
        versionName gitVersionName

-        minSdkVersion 14
-        targetSdkVersion 27
-
-        android.applicationVariants.all { variant ->
-            def appName
-            //Check if an applicationName property is supplied; if not use the name of the parent project.
-            if (project.hasProperty("applicationName")) {
-                appName = applicationName
-            } else {
-                appName = parent.name
-            }
-
-            variant.outputs.all { output ->
-                outputFileName = "${appName}-${output.baseName}-${variant.versionName}.apk"
-            }
-        }
+        minSdkVersion 24
+        targetSdkVersion 29

        testApplicationId "es.ugr.swad.swadroid.test"
        testInstrumentationRunner "android.test.InstrumentationTestRunner"
+
+        buildConfigField "String", "SWAD_APP_KEY", getBuildConfigField("SWAD_APP_KEY")
    }

    buildTypes {
-        debug {
-            versionNameSuffix '-DEBUG'
-        }
-
-        buildTypes.each {
-            it.buildConfigField "String", "SWAD_APP_KEY", getBuildConfigField("SWAD_APP_KEY")
-            it.buildConfigField "String", "ANALYTICS_API_KEY", getBuildConfigField("ANALYTICS_API_KEY")
+        prod {
+            minifyEnabled true
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
 }

-//return a BuildConfigField from a properties file.
-def getBuildConfigField(String property){
-    def value
-
-    if(travisBuild) {
-        value = "\"" + System.getenv(property) + "\""
-    } else {
-        Properties properties = new Properties()
-        properties.load(new FileInputStream("keystore.properties"))
-        value = "\"" + properties.getProperty(property) + "\""
-    }
-
-    return value
-}
-
 dependencies {
-    compile 'com.android.support:support-v4:27.0.2'
-    compile 'com.android.support:appcompat-v7:27.0.2'
-    compile 'com.google.android.gms:play-services-analytics:11.8.0'
-    compile 'com.google.code.ksoap2-android:ksoap2-android:3.6.2'
-    compile 'commons-io:commons-io:2.6'
-    compile 'com.nostra13.universalimageloader:universal-image-loader:1.9.5'
-    compile 'com.journeyapps:zxing-android-embedded:3.5.0@aar'
-    compile 'com.google.zxing:core:3.3.1'
-    compile 'com.google.code.gson:gson:2.8.2'
+    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
+    implementation 'androidx.appcompat:appcompat:1.1.0'
+    implementation 'com.google.code.ksoap2-android:ksoap2-android:3.6.4'
+    implementation 'commons-io:commons-io:2.6'
+    implementation 'com.nostra13.universalimageloader:universal-image-loader:1.9.5'
+    implementation 'com.journeyapps:zxing-android-embedded:4.0.2@aar'
+    implementation 'com.google.zxing:core:3.4.0'
+    implementation 'com.google.code.gson:gson:2.8.6'
+    implementation 'com.google.firebase:firebase-core:17.2.1'
 }
--- a/SWADroid/google-services.json
+++ b/SWADroid/google-services.json
@ -0,0 +1,51 @@
+{
+  "project_info": {
+    "project_number": "",
+    "project_id": ""
+  },
+  "client": [
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:123456789012:android:1234567890123456",
+        "android_client_info": {
+          "package_name": "es.ugr.swad.swadroid"
+        }
+      },
+      "oauth_client": [
+        {
+          "client_id": "",
+          "client_type": 3
+        },
+        {
+          "client_id": "",
+          "client_type": 1,
+          "android_info": {
+            "package_name": "es.ugr.swad.swadroid",
+            "certificate_hash": ""
+          }
+        }
+      ],
+      "api_key": [
+        {
+          "current_key": ""
+        }
+      ],
+      "services": {
+        "analytics_service": {
+          "status": 2,
+          "analytics_property": {
+            "tracking_id": ""
+          }
+        },
+        "appinvite_service": {
+          "status": 1,
+          "other_platform_oauth_client": []
+        },
+        "ads_service": {
+          "status": 1
+        }
+      }
+    }
+  ],
+  "configuration_version": "1"
+}
--- a/SWADroid/src/main/AndroidManifest.xml
+++ b/SWADroid/src/main/AndroidManifest.xml
@ -342,7 +342,7 @@
        <service android:name="com.google.android.gms.analytics.CampaignTrackingService" />

        <provider
-            android:name="android.support.v4.content.FileProvider"
+            android:name="androidx.core.content.FileProvider"
            android:authorities="es.ugr.swad.swadroid.fileprovider"
            android:exported="false"
            android:grantUriPermissions="true">
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/Config.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/Config.java
@ -28,8 +28,4 @@ public class Config {
 	 * SWAD application key
 	 */
 	public static final String SWAD_APP_KEY = BuildConfig.SWAD_APP_KEY;
-    /**
-     * Google Analytics application key
-     */
-    public static final String ANALYTICS_API_KEY = BuildConfig.ANALYTICS_API_KEY;
 }
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/SWADMain.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/SWADMain.java
@ -49,7 +49,6 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;

-import es.ugr.swad.swadroid.analytics.SWADroidTracker;
 import es.ugr.swad.swadroid.database.DataBaseHelper;
 import es.ugr.swad.swadroid.gui.DialogFactory;
 import es.ugr.swad.swadroid.gui.MenuExpandableListActivity;
@ -159,8 +158,6 @@ public class SWADMain extends MenuExpandableListActivity {
    public void onCreate(Bundle icicle) {
        int lastVersion, currentVersion;

-        SWADroidTracker.initTracker(getApplicationContext());
-
        //Initialize screen
        super.onCreate(icicle);

@ -181,6 +178,7 @@ public class SWADMain extends MenuExpandableListActivity {

                //If this is an upgrade, show upgrade dialog
            } else if (lastVersion < currentVersion) {
+                //showUpgradeDialog(this);
                upgradeApp(lastVersion, currentVersion);
            }

@ -188,7 +186,7 @@ public class SWADMain extends MenuExpandableListActivity {

            currentRole = -1;
        } catch (Exception ex) {
-            error(ex.getMessage(), ex, true);
+            error(ex.getMessage(), ex);
        }
    }

@ -227,8 +225,6 @@ public class SWADMain extends MenuExpandableListActivity {
            createSpinnerAdapter();
            createMenu();
        }
-
-        SWADroidTracker.sendScreenView(getApplicationContext(), TAG);
    }

    private void showBirthdayMessage() {
@ -244,6 +240,8 @@ public class SWADMain extends MenuExpandableListActivity {
     * @param currentVersion Current version of application
     */
    private void firstRun(int currentVersion) {
+        Log.i(TAG, "Running application for first time. Setting current version to " + currentVersion);
+
        Intent activity = new Intent(this, AccountAuthenticator.class);

        //Configure automatic synchronization
@ -254,6 +252,8 @@ public class SWADMain extends MenuExpandableListActivity {
        firstRun = true;

        Preferences.initializeSelectedCourse();
+
+        Log.i(TAG, "First initialization completed successfully");
    }

    /**
@ -262,7 +262,8 @@ public class SWADMain extends MenuExpandableListActivity {
     * @param currentVersion Version to which the application is updated
     */
    private void upgradeApp(int lastVersion, int currentVersion) throws NoSuchAlgorithmException {
-        showUpgradeDialog(this);
+        Log.i(TAG, "Upgrading application from version " + lastVersion + " to version " + currentVersion);
+
        dbHelper.upgradeDB();

        if(lastVersion < 52) {
@ -285,6 +286,8 @@ public class SWADMain extends MenuExpandableListActivity {
        }

        Preferences.setLastVersion(currentVersion);
+
+        Log.i(TAG, "Application upgraded from version " + lastVersion + " to version " + currentVersion);
    }

    @Override
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/analytics/SWADroidTracker.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/analytics/SWADroidTracker.java
@ -1,175 +0,0 @@
-/*
- *
- *  *  This file is part of SWADroid.
- *  *
- *  *  Copyright (C) 2010 Juan Miguel Boyero Corral <juanmi1982@gmail.com>
- *  *
- *  *  SWADroid is free software: you can redistribute it and/or modify
- *  *  it under the terms of the GNU General Public License as published by
- *  *  the Free Software Foundation, either version 3 of the License, or
- *  *  (at your option) any later version.
- *  *
- *  *  SWADroid is distributed in the hope that it will be useful,
- *  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  *  GNU General Public License for more details.
- *  *
- *  *  You should have received a copy of the GNU General Public License
- *  *  along with SWADroid.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-package es.ugr.swad.swadroid.analytics;
-
-import android.content.Context;
-import android.util.Log;
-
-import com.google.android.gms.analytics.ExceptionReporter;
-import com.google.android.gms.analytics.GoogleAnalytics;
-import com.google.android.gms.analytics.HitBuilders;
-import com.google.android.gms.analytics.StandardExceptionParser;
-import com.google.android.gms.analytics.Tracker;
-
-import java.util.HashMap;
-
-import es.ugr.swad.swadroid.Config;
-import es.ugr.swad.swadroid.Constants;
-
-/**
- * Tracker for Google Play
- *
- * @author Juan Miguel Boyero Corral <juanmi1982@gmail.com>
- */
-public class SWADroidTracker {
-    /**
-     * SWADroidTracker tag name for Logcat
-     */
-    private static final String TAG = Constants.APP_TAG + " SWADroidTracker";
-    /**
-     * Enum used to identify the tracker that needs to be used for tracking.
-     *
-     * A single tracker is usually enough for most purposes. In case you do need multiple trackers,
-     * storing them all in Application object helps ensure that they are created only once per
-     * application instance.
-     */
-    public enum TrackerName {
-        APP_TRACKER, // Tracker used only in this app.
-        GLOBAL_TRACKER, // Tracker used by all the apps from a company. eg: roll-up tracking.
-        ECOMMERCE_TRACKER, // Tracker used by all ecommerce transactions from a company.
-    }
-
-    private static HashMap<TrackerName, Tracker> mTrackers = new HashMap<>();
-
-    private static boolean isTrackerEnabled() {
-        return (!Config.ANALYTICS_API_KEY.isEmpty());
-    }
-
-    private static synchronized Tracker getTracker(Context context) {
-        if (!mTrackers.containsKey(TrackerName.APP_TRACKER)) {
-
-            GoogleAnalytics analytics = GoogleAnalytics.getInstance(context);
-            Tracker t = analytics.newTracker(Config.ANALYTICS_API_KEY);
-            t.enableExceptionReporting(true);
-            t.enableAutoActivityTracking(true);
-            mTrackers.put(TrackerName.APP_TRACKER, t);
-
-        }
-        return mTrackers.get(TrackerName.APP_TRACKER);
-    }
-
-    public static void initTracker(Context context) {
-        // Initialize a tracker using a Google Analytics property ID.
-        if(isTrackerEnabled()) {
-            GoogleAnalytics.getInstance(context).newTracker(Config.ANALYTICS_API_KEY);
-
-            ExceptionReporter exceptionHandler =
-                    new ExceptionReporter(
-                            getTracker(context),
-                            Thread.getDefaultUncaughtExceptionHandler(),
-                            context);
-
-            StandardExceptionParser exceptionParser =
-                    new StandardExceptionParser(context, null) {
-                        @Override
-                        public String getDescription(String threadName, Throwable t) {
-                            return "{" + threadName + "} " + Log.getStackTraceString(t);
-                        }
-                    };
-
-            exceptionHandler.setExceptionParser(exceptionParser);
-
-            // Make myHandler the new default uncaught exception handler.
-            Thread.setDefaultUncaughtExceptionHandler(exceptionHandler);
-
-            Log.i(TAG, "Google Play Services available. SWADroidTracker enabled");
-        } else {
-            Log.w(TAG, "Google Play Services not available. SWADroidTracker disabled");
-        }
-    }
-
-    public static void sendScreenView(Context context, String path) {
-        if(isTrackerEnabled()) {
-            // Get tracker.
-            Tracker t = getTracker(context);
-
-            // Set screen name.
-            // Where path is a String representing the screen name.
-            t.setScreenName(path);
-
-            // Send a screen view.
-            t.send(new HitBuilders.ScreenViewBuilder().build());
-
-            Log.i(TAG, "ScreenView sent for screen " + path);
-        }
-    }
-
-    public static void sendScreenView(Context context, String path, String category, String action, String label) {
-        if(isTrackerEnabled()) {
-            // Get tracker.
-            Tracker t = getTracker(context);
-
-            // Set screen name.
-            // Where path is a String representing the screen name.
-            t.setScreenName(path);
-
-            // Send a screen view.
-            t.send(new HitBuilders.ScreenViewBuilder().build());
-
-            // This event will also be sent with &cd=Home%20Screen.
-            // Build and send an Event.
-            t.send(new HitBuilders.EventBuilder()
-                    .setCategory(category)
-                    .setAction(action)
-                    .setLabel(label)
-                    .build());
-
-            // Clear the screen name field when we're done.
-            t.setScreenName(null);
-
-            Log.i(TAG, "ScreenView sent for screen " + path);
-        }
-    }
-
-    public static void sendException(Context context, Exception e, boolean fatal) {
-        if(isTrackerEnabled()) {
-            // Get tracker.
-            Tracker t = getTracker(context);
-
-            StandardExceptionParser exceptionParser =
-                    new StandardExceptionParser(context, null) {
-                        @Override
-                        public String getDescription(String threadName, Throwable t) {
-                            return "{" + threadName + "} " + Log.getStackTraceString(t);
-                        }
-                    };
-
-            t.send(new HitBuilders.ExceptionBuilder()
-                            .setDescription(exceptionParser.getDescription(Thread.currentThread().getName(), e))
-                            .setFatal(fatal)
-                            .build()
-            );
-
-            Log.e(TAG, e.getMessage(), e);
-        }
-    }
-}
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/analytics/package.html
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/analytics/package.html
@ -1,7 +0,0 @@
-<html>
-<head>
-</head>
-<body>
-Analytics package.
-</body>
-</html>
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/database/DataBaseHelper.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/database/DataBaseHelper.java
@ -38,7 +38,6 @@ import java.util.Collection;
 import java.util.List;

 import es.ugr.swad.swadroid.Constants;
-import es.ugr.swad.swadroid.analytics.SWADroidTracker;
 import es.ugr.swad.swadroid.model.Course;
 import es.ugr.swad.swadroid.model.Event;
 import es.ugr.swad.swadroid.model.FrequentUser;
@ -417,8 +416,7 @@ public class DataBaseHelper {
                            null,                               //userBirthday
                            ent.getInt("userRole"));
                } catch (ParseException e) {
-                    //Send exception details to Google Analytics
-                    SWADroidTracker.sendException(mCtx, e, false);
+                    Log.e(TAG, e.getMessage(), e);
                }
                break;
            case DataBaseHelper.DB_TABLE_USERS_ATTENDANCES:
@ -618,8 +616,7 @@ public class DataBaseHelper {
                        null,
                        ent.getInt("userRole"));
            } catch (ParseException e) {
-                //Send exception details to Google Analytics
-                SWADroidTracker.sendException(mCtx, e, false);
+                Log.e(TAG, e.getMessage(), e);
            }
        }

@ -2315,7 +2312,6 @@ public class DataBaseHelper {
     * Delete all tables from database
     */
    public void clearDB() {
-        SWADroidTracker.sendScreenView(mCtx, TAG + " clearDB");
        db.deleteTables();
        Log.i(TAG, "All tables deleted");
    }
@ -2324,7 +2320,7 @@ public class DataBaseHelper {
     * Clean data of all tables from database. Removes users photos from external storage
     */
    public void cleanTables() {
-        SWADroidTracker.sendScreenView(mCtx, TAG + " cleanTables");
+        Log.i(TAG, "Emptying all tables");

        db.emptyTables();
        compactDB();
@ -2340,8 +2336,7 @@ public class DataBaseHelper {
 	    	try {
 				wait();
 			} catch (InterruptedException e) {
-                //Send exception details to Google Analytics
-                SWADroidTracker.sendException(mCtx, e, false);
+                Log.e(TAG, e.getMessage(), e);
 			}
    	}
    	
@ -2365,8 +2360,8 @@ public class DataBaseHelper {
 	        
 	        notifyAll();
    	} else {
-            //Send exception details to Google Analytics
-            SWADroidTracker.sendException(mCtx, new DataBaseHelperException("No active transactions"), false);
+    	    Exception e = new DataBaseHelperException("No active transactions");
+            Log.e(TAG, e.getMessage(), e);
    	}
    }
    
@ -2378,6 +2373,7 @@ public class DataBaseHelper {
     * Compact the database
     */
    private void compactDB() {
+        Log.i(TAG, "Compacting database");
        db.getDB().execSQL("VACUUM;");
        Log.i(TAG, "Database compacted");
    }
@ -2396,6 +2392,9 @@ public class DataBaseHelper {
     */
    public void upgradeDB() {
        int dbVersion = db.getDB().getVersion();
+
+        Log.i(TAG, "Upgrading database");
+
 		/* 
 		 * Modify database keeping data:
 		 * 1. Create temporary table __DB_TABLE_GROUPS (with the new model)
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/gui/AlertNotificationFactory.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/gui/AlertNotificationFactory.java
@ -24,7 +24,7 @@ import android.app.NotificationManager;
 import android.app.PendingIntent;
 import android.content.Context;
 import android.graphics.BitmapFactory;
-import android.support.v4.app.NotificationCompat;
+import androidx.core.app.NotificationCompat;

 import es.ugr.swad.swadroid.utils.NotificationUtils;

--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/gui/DialogFactory.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/gui/DialogFactory.java
@ -19,7 +19,6 @@ import org.apache.commons.io.IOUtils;
 import java.io.InputStream;

 import es.ugr.swad.swadroid.R;
-import es.ugr.swad.swadroid.analytics.SWADroidTracker;

 /**
 * Class for create dialogs.
@ -238,8 +237,6 @@ public class DialogFactory {
     * @param tag Module tag
     * @param message Error message string
     * @param ex Exception thrown
-     * @param sendException true if the error report has to be sent
-     * 						false otherwise
     * @param isDebuggable	true if the application is debuggable (develop mode). Activates Logcat messages
     * 						false otherwise
     * @param onClickListener ClickListener associated to the neutral button
@ -247,7 +244,7 @@ public class DialogFactory {
     */
    @TargetApi(Build.VERSION_CODES.HONEYCOMB)
 	public static AlertDialog createErrorDialog(Context context, String tag, String message, Exception ex,
-    		boolean sendException, boolean isDebuggable, DialogInterface.OnClickListener onClickListener) {
+    		boolean isDebuggable, DialogInterface.OnClickListener onClickListener) {
    	
    	AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(context)
                .setTitle(R.string.title_error_dialog)
@ -258,11 +255,6 @@ public class DialogFactory {

        if (ex != null) {
            Log.e(tag, ex.getMessage(), ex);
-
-            // Send exception details to Google Analytics
-            if (!isDebuggable && sendException) {
-                SWADroidTracker.sendException(context, ex, false);
-            }
        }
        
        return alertDialogBuilder.create();
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/gui/MenuActivity.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/gui/MenuActivity.java
@ -26,7 +26,7 @@ import android.content.Intent;
 import android.content.pm.ApplicationInfo;
 import android.net.Uri;
 import android.os.Bundle;
-import android.support.v7.app.AppCompatActivity;
+import androidx.appcompat.app.AppCompatActivity;
 import android.util.Log;
 import android.view.Menu;
 import android.view.MenuItem;
@ -138,14 +138,14 @@ public class MenuActivity extends AppCompatActivity {
     *
     * @param message Error message to show.
     */
-    protected void error(String message, Exception ex, boolean sendException) {
+    protected void error(String message, Exception ex) {
    	DialogInterface.OnClickListener onClickListener = new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int id) {
                finish();
            }
        };
        
-    	AlertDialog errorDialog = DialogFactory.createErrorDialog(this, TAG, message, ex, sendException,
+    	AlertDialog errorDialog = DialogFactory.createErrorDialog(this, TAG, message, ex,
    			isDebuggable, onClickListener); 
    	
    	errorDialog.show();
@ -208,7 +208,7 @@ public class MenuActivity extends AppCompatActivity {
                    getPackageName(), 0);
 			isDebuggable = (ApplicationInfo.FLAG_DEBUGGABLE != 0);	
        } catch (Exception ex) {
-            error(ex.getMessage(), ex, true);
+            error(ex.getMessage(), ex);
        }
    }
    
@ -232,7 +232,7 @@ public class MenuActivity extends AppCompatActivity {
        try {
            dbHelper = new DataBaseHelper(this);
        } catch (Exception ex) {
-            error(ex.getMessage(), ex, true);
+            error(ex.getMessage(), ex);
        }
    }
 }
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/gui/MenuExpandableListActivity.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/gui/MenuExpandableListActivity.java
@ -26,7 +26,7 @@ import android.content.Intent;
 import android.content.pm.ApplicationInfo;
 import android.net.Uri;
 import android.os.Bundle;
-import android.support.v7.app.AppCompatActivity;
+import androidx.appcompat.app.AppCompatActivity;
 import android.util.Log;
 import android.view.Menu;
 import android.view.MenuItem;
@ -145,14 +145,14 @@ public class MenuExpandableListActivity extends AppCompatActivity {
     *
     * @param message Error message to show.
     */
-    protected void error(String message, Exception ex, boolean sendException) {
+    protected void error(String message, Exception ex) {
    	DialogInterface.OnClickListener onClickListener = new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int id) {
                finish();
            }
        };
        
-    	AlertDialog errorDialog = DialogFactory.createErrorDialog(this, TAG, message, ex, sendException,
+    	AlertDialog errorDialog = DialogFactory.createErrorDialog(this, TAG, message, ex,
    			isDebuggable, onClickListener);    	
    	
    	errorDialog.show();
@ -224,7 +224,7 @@ public class MenuExpandableListActivity extends AppCompatActivity {
 			isDebuggable = (ApplicationInfo.FLAG_DEBUGGABLE != 0);			
 			isSWADMain = this instanceof SWADMain;
        } catch (Exception ex) {
-            error(ex.getMessage(), ex, true);
+            error(ex.getMessage(), ex);
        }
    }

@ -248,7 +248,7 @@ public class MenuExpandableListActivity extends AppCompatActivity {
        try {
            dbHelper = new DataBaseHelper(this);
        } catch (Exception ex) {
-            error(ex.getMessage(), ex, true);
+            error(ex.getMessage(), ex);
        }
    }

--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/gui/SwipeListViewTouchListener.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/gui/SwipeListViewTouchListener.java
@ -24,7 +24,7 @@ import android.animation.ValueAnimator;
 import android.annotation.TargetApi;
 import android.graphics.Rect;
 import android.os.Build;
-import android.support.v4.widget.SwipeRefreshLayout;
+import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
 import android.view.MotionEvent;
 import android.view.VelocityTracker;
 import android.view.View;
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/Module.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/Module.java
@ -29,6 +29,8 @@ import android.os.Bundle;
 import android.util.Log;
 import android.widget.Toast;

+import com.google.firebase.analytics.FirebaseAnalytics;
+
 import org.ksoap2.SoapFault;
 import org.ksoap2.transport.HttpResponseException;
 import org.kxml2.kdom.Element;
@ -63,6 +65,10 @@ public abstract class Module extends MenuActivity {
     * Class Module's tag name for Logcat
     */
    private static final String TAG = Constants.APP_TAG + " Module";
+    /**
+     * Obtain Firebase Analytics instance
+     */
+    protected FirebaseAnalytics mFirebaseAnalytics = FirebaseAnalytics.getInstance(this);
    /**
     * Async Task for background jobs
     */
@ -332,7 +338,6 @@ public abstract class Module extends MenuActivity {
        protected void onPostExecute(Void unused) {
            String errorMsg;
            int httpStatusCode;
-            boolean sendException = true;

            if (e != null) {
                /**
@ -345,11 +350,9 @@ public abstract class Module extends MenuActivity {
                    switch (es.faultstring) {
                        case "Bad log in":
                            errorMsg = getString(R.string.errorBadLoginMsg);
-                            sendException = false;
                            break;
                        case "Bad web service key":
                            errorMsg = getString(R.string.errorBadLoginMsg);
-                            sendException = false;

                            // Force logout and reset password (this will show again
                            // the login screen)
@ -365,7 +368,6 @@ public abstract class Module extends MenuActivity {
                    }
                } else if ((e.getClass() == TimeoutException.class) || (e.getClass() == SocketTimeoutException.class)) {
                    errorMsg = getString(R.string.errorTimeoutMsg);
-                    sendException = false;
                } else if ((e.getClass() == CertificateException.class) || (e .getClass() == SSLException.class)) {
                    errorMsg = getString(R.string.errorServerCertificateMsg);
                } else if (e.getClass() == HttpResponseException.class) {
@ -378,7 +380,6 @@ public abstract class Module extends MenuActivity {
                                  break;

                        case 503: errorMsg = getString(R.string.errorServiceUnavailableMsg);
-                                  sendException = false;
                                  break;

                        default:  errorMsg = e.getMessage();
@ -396,7 +397,7 @@ public abstract class Module extends MenuActivity {
                }

                // Request finalized with errors
-                error(errorMsg, e, sendException);
+                error(errorMsg, e);
                setResult(RESULT_CANCELED);

                // Launch database rollback
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/account/CreateAccount.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/account/CreateAccount.java
@ -21,6 +21,8 @@ package es.ugr.swad.swadroid.modules.account;

 import android.os.Bundle;

+import com.google.firebase.analytics.FirebaseAnalytics;
+
 import org.ksoap2.SoapFault;
 import org.ksoap2.serialization.SoapObject;

@ -122,6 +124,10 @@ public class CreateAccount extends Module {

        //Request finalized without errors
        setResult(RESULT_OK);
+
+        Bundle bundle = new Bundle();
+        bundle.putString(FirebaseAnalytics.Param.METHOD, "requestService");
+        mFirebaseAnalytics.logEvent(FirebaseAnalytics.Event.SIGN_UP, bundle);
    }

    /* (non-Javadoc)
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/account/CreateAccountActivity.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/account/CreateAccountActivity.java
@ -22,7 +22,7 @@ import android.content.Intent;
 import android.graphics.Color;
 import android.os.Build;
 import android.os.Bundle;
-import android.support.v7.app.AppCompatActivity;
+import androidx.appcompat.app.AppCompatActivity;
 import android.text.TextUtils;
 import android.util.Log;
 import android.view.KeyEvent;
@ -44,7 +44,6 @@ import es.ugr.swad.swadroid.Constants;
 import es.ugr.swad.swadroid.gui.ProgressScreen;
 import es.ugr.swad.swadroid.preferences.Preferences;
 import es.ugr.swad.swadroid.R;
-import es.ugr.swad.swadroid.analytics.SWADroidTracker;
 import es.ugr.swad.swadroid.gui.DialogFactory;
 import es.ugr.swad.swadroid.utils.Utils;

@ -196,8 +195,6 @@ public class CreateAccountActivity extends AppCompatActivity implements AdapterV
     * Creates a new account
     */
    private void createAccount() {
-        SWADroidTracker.sendScreenView(getApplicationContext(), "SWADroid CreateAccount");
-
        Intent intent;

        // Values for text field at the time of the create account attempt.
@ -317,7 +314,7 @@ public class CreateAccountActivity extends AppCompatActivity implements AdapterV
                        }

                        errorDialog = DialogFactory.createErrorDialog(this, TAG,
-                                errorMsg, null, false, false, new DialogInterface.OnClickListener() {
+                                errorMsg, null, false, new DialogInterface.OnClickListener() {

                            @Override
                            public void onClick(DialogInterface dialog, int which) {
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/courses/Courses.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/courses/Courses.java
@ -31,7 +31,6 @@ import java.util.List;
 import java.util.Vector;

 import es.ugr.swad.swadroid.Constants;
-import es.ugr.swad.swadroid.analytics.SWADroidTracker;
 import es.ugr.swad.swadroid.database.DataBaseHelper;
 import es.ugr.swad.swadroid.model.Course;
 import es.ugr.swad.swadroid.model.Model;
@ -90,8 +89,6 @@ public class Courses extends Module {
    @Override
    protected void onStart() {
        super.onStart();
-
-        SWADroidTracker.sendScreenView(getApplicationContext(), TAG);
        
        runConnection();
    }
@ -210,12 +207,7 @@ public class Courses extends Module {
        try {
            dbHelper.emptyTable(DataBaseHelper.DB_TABLE_COURSES);
        } catch (Exception e) {
-            e.printStackTrace();
-
-            //Send exception details to Google Analytics
-            if (!isDebuggable) {
-                SWADroidTracker.sendException(context, e, false);
-            }
+            Log.e(TAG, e.getMessage(), e);
        }
    }

--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/downloads/DirectoryNavigator.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/downloads/DirectoryNavigator.java
@ -19,13 +19,16 @@
 package es.ugr.swad.swadroid.modules.downloads;

 import android.content.Context;
+import android.util.Log;

 import org.w3c.dom.Document;
 import org.w3c.dom.NamedNodeMap;
 import org.w3c.dom.Node;
 import org.w3c.dom.NodeList;
 import org.xml.sax.InputSource;
+import org.xml.sax.SAXException;

+import java.io.IOException;
 import java.io.StringReader;
 import java.util.ArrayList;
 import java.util.Collections;
@ -33,8 +36,9 @@ import java.util.List;

 import javax.xml.parsers.DocumentBuilder;
 import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.parsers.ParserConfigurationException;

-import es.ugr.swad.swadroid.analytics.SWADroidTracker;
+import es.ugr.swad.swadroid.Constants;


 /**
@ -60,6 +64,11 @@ public class DirectoryNavigator {
     */
    private Context mContext;

+    /**
+     * Downloads tag name for Logcat
+     */
+    private static final String TAG = Constants.APP_TAG + " DirectoryNavigator";
+
    /**
     * Constructor.
     *
@ -278,9 +287,8 @@ public class DirectoryNavigator {
                    }
                }
            }
-        } catch (Exception e) {
-            //Send exception details to Google Analytics
-            SWADroidTracker.sendException(mContext, e, false);
+        } catch (ParserConfigurationException | IOException | SAXException ex) {
+            Log.e(TAG, ex.getMessage(), ex);
        }

        //If we don't find the entire path, we throw an exception.
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/downloads/DownloadsManager.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/downloads/DownloadsManager.java
@ -31,10 +31,10 @@ import android.graphics.Typeface;
 import android.os.Build;
 import android.os.Bundle;
 import android.os.Environment;
-import android.support.annotation.NonNull;
-import android.support.v4.app.ActivityCompat;
-import android.support.v4.content.ContextCompat;
-import android.support.v4.content.FileProvider;
+import androidx.annotation.NonNull;
+import androidx.core.app.ActivityCompat;
+import androidx.core.content.ContextCompat;
+import androidx.core.content.FileProvider;
 import android.util.Log;
 import android.view.KeyEvent;
 import android.view.View;
@ -56,7 +56,6 @@ import java.util.List;

 import es.ugr.swad.swadroid.Constants;
 import es.ugr.swad.swadroid.R;
-import es.ugr.swad.swadroid.analytics.SWADroidTracker;
 import es.ugr.swad.swadroid.gui.FontManager;
 import es.ugr.swad.swadroid.gui.MenuActivity;
 import es.ugr.swad.swadroid.gui.ProgressScreen;
@ -190,7 +189,6 @@ public class DownloadsManager extends MenuActivity {
    @Override
    protected void onStart() {
        super.onStart();
-        SWADroidTracker.sendScreenView(getApplicationContext(), TAG);

        // check Android 6 permission
        if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE)
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/downloads/FileDownloaderAsyncTask.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/downloads/FileDownloaderAsyncTask.java
@ -27,7 +27,6 @@ import java.net.URL;

 import es.ugr.swad.swadroid.Constants;
 import es.ugr.swad.swadroid.R;
-import es.ugr.swad.swadroid.analytics.SWADroidTracker;

 /**
 * Download the file located at the given URL, save it to a file.
@ -72,9 +71,6 @@ public class FileDownloaderAsyncTask extends AsyncTask<String, Integer, Boolean>
        } catch (MalformedURLException e) {
            Log.e(TAG, "Incorrect URL", e);

-            //Send exception details to Google Analytics
-            SWADroidTracker.sendException(mContext, e, false);
-
            downloadSuccess = false;
        }

--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/downloads/GetFile.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/downloads/GetFile.java
@ -29,7 +29,6 @@ import java.util.Vector;

 import es.ugr.swad.swadroid.Constants;
 import es.ugr.swad.swadroid.R;
-import es.ugr.swad.swadroid.analytics.SWADroidTracker;
 import es.ugr.swad.swadroid.model.Group;
 import es.ugr.swad.swadroid.modules.login.Login;
 import es.ugr.swad.swadroid.modules.Module;
@ -73,14 +72,12 @@ public class GetFile extends Module {
    @Override
    protected void onStart() {
        super.onStart();
-
-        SWADroidTracker.sendScreenView(getApplicationContext(), TAG);
        
        try {
            runConnection();
        } catch (Exception e) {
            String errorMsg = getString(R.string.errorServerResponseMsg);
-            error(errorMsg, e, true);
+            error(errorMsg, e);
        }
    }

--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/groups/EnrollmentExpandableListAdapter.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/groups/EnrollmentExpandableListAdapter.java
@ -21,8 +21,8 @@ package es.ugr.swad.swadroid.modules.groups;
 import android.content.Context;
 import android.graphics.Color;
 import android.graphics.Typeface;
-import android.support.v4.content.ContextCompat;
-import android.support.v4.util.LongSparseArray;
+import androidx.core.content.ContextCompat;
+import androidx.collection.LongSparseArray;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.View.OnClickListener;
@ -198,16 +198,16 @@ public class EnrollmentExpandableListAdapter extends BaseExpandableListAdapter {
        if (multiple == 0 && role != Constants.TEACHER_TYPE_CODE) { //single inscriptions:
            holder.checkBox.setVisibility(View.GONE);
            holder.radioButton.setVisibility(View.VISIBLE);
+            holder.radioButton.setText(groupName);

        } else { //multiple inscriptions :

            holder.checkBox.setVisibility(View.VISIBLE);
            holder.radioButton.setVisibility(View.GONE);
+            holder.checkBox.setText(groupName);
+            holder.checkBox.setChecked(member != 0);
        }

-        holder.radioButton.setText(groupName);
-        holder.checkBox.setChecked(member != 0);
-
        holder.nStudentText.setText(context.getString(R.string.numStudent) + ": " + String.valueOf(students));

        if (maxStudents != -1) {
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/groups/GroupTypes.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/groups/GroupTypes.java
@ -13,7 +13,6 @@ import java.util.Vector;

 import es.ugr.swad.swadroid.Constants;
 import es.ugr.swad.swadroid.R;
-import es.ugr.swad.swadroid.analytics.SWADroidTracker;
 import es.ugr.swad.swadroid.database.DataBaseHelper;
 import es.ugr.swad.swadroid.model.GroupType;
 import es.ugr.swad.swadroid.model.Model;
@ -59,14 +58,12 @@ public class GroupTypes extends Module {
    @Override
    protected void onStart() {
        super.onStart();
-
-        SWADroidTracker.sendScreenView(getApplicationContext(), TAG);
        
        try {
            runConnection();
        } catch (Exception e) {
            String errorMsg = getString(R.string.errorServerResponseMsg);
-            error(errorMsg, e, true);
+            error(errorMsg, e);
        }
    }

--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/groups/Groups.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/groups/Groups.java
@ -31,7 +31,6 @@ import java.util.Vector;

 import es.ugr.swad.swadroid.Constants;
 import es.ugr.swad.swadroid.R;
-import es.ugr.swad.swadroid.analytics.SWADroidTracker;
 import es.ugr.swad.swadroid.database.DataBaseHelper;
 import es.ugr.swad.swadroid.model.Group;
 import es.ugr.swad.swadroid.model.Model;
@ -79,14 +78,12 @@ public class Groups extends Module {
    @Override
    protected void onStart() {
        super.onStart();
-
-        SWADroidTracker.sendScreenView(getApplicationContext(), TAG);
        
        try {
            runConnection();
        } catch (Exception e) {
            String errorMsg = getString(R.string.errorServerResponseMsg);
-            error(errorMsg, e, true);
+            error(errorMsg, e);
        }
    }

--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/groups/MyGroupsManager.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/groups/MyGroupsManager.java
@ -24,7 +24,7 @@ import android.content.DialogInterface;
 import android.content.DialogInterface.OnClickListener;
 import android.content.Intent;
 import android.os.Bundle;
-import android.support.v4.util.LongSparseArray;
+import androidx.collection.LongSparseArray;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
@ -35,7 +35,6 @@ import java.util.List;

 import es.ugr.swad.swadroid.Constants;
 import es.ugr.swad.swadroid.R;
-import es.ugr.swad.swadroid.analytics.SWADroidTracker;
 import es.ugr.swad.swadroid.database.DataBaseHelper;
 import es.ugr.swad.swadroid.gui.DialogFactory;
 import es.ugr.swad.swadroid.gui.MenuExpandableListActivity;
@ -93,8 +92,6 @@ public class MyGroupsManager extends MenuExpandableListActivity {

        showProgressLoading();

-        SWADroidTracker.sendScreenView(getApplicationContext(), TAG);
-
        List<Model> groupTypes = dbHelper.getAllRows(DataBaseHelper.DB_TABLE_GROUP_TYPES, "courseCode = " + courseCode, "groupTypeName");
        List<Group> groups = dbHelper.getGroups(courseCode);
        if ((!groupTypes.isEmpty()) && (!groups.isEmpty())) {
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/groups/SendMyGroups.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/groups/SendMyGroups.java
@ -88,7 +88,7 @@ public class SendMyGroups extends Module {
            runConnection();
        } catch (Exception e) {
            String errorMsg = getString(R.string.errorServerResponseMsg);
-            error(errorMsg, e, true);
+            error(errorMsg, e);
        }
    }

--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/information/Information.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/information/Information.java
@ -14,7 +14,6 @@ import org.ksoap2.serialization.SoapObject;

 import es.ugr.swad.swadroid.Constants;
 import es.ugr.swad.swadroid.R;
-import es.ugr.swad.swadroid.analytics.SWADroidTracker;
 import es.ugr.swad.swadroid.gui.ProgressScreen;
 import es.ugr.swad.swadroid.gui.WebViewFactory;
 import es.ugr.swad.swadroid.model.User;
@ -149,12 +148,11 @@ public class Information extends Module {
    protected void onStart() {
        super.onStart();

-        SWADroidTracker.sendScreenView(getApplicationContext(), TAG + " " + infoTypeToAdd);
        try {
            runConnection();
        } catch (Exception e) {
            String errorMsg = getString(R.string.errorServerResponseMsg);
-            error(errorMsg, e, true);
+            error(errorMsg, e);
        }
    }

--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/login/Login.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/login/Login.java
@ -22,6 +22,8 @@ package es.ugr.swad.swadroid.modules.login;
 import android.os.Bundle;
 import android.util.Log;

+import com.google.firebase.analytics.FirebaseAnalytics;
+
 import org.ksoap2.SoapFault;
 import org.ksoap2.serialization.SoapObject;

@ -173,6 +175,10 @@ public class Login extends Module {

        //Request finalized without errors
        setResult(RESULT_OK);
+
+        Bundle bundle = new Bundle();
+        bundle.putString(FirebaseAnalytics.Param.METHOD, "requestService");
+        mFirebaseAnalytics.logEvent(FirebaseAnalytics.Event.LOGIN, bundle);
    }

    /* (non-Javadoc)
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/login/LoginActivity.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/login/LoginActivity.java
@ -21,7 +21,7 @@ import android.content.DialogInterface;
 import android.content.Intent;
 import android.graphics.Color;
 import android.os.Bundle;
-import android.support.v7.app.AppCompatActivity;
+import androidx.appcompat.app.AppCompatActivity;
 import android.text.InputType;
 import android.text.TextUtils;
 import android.util.Log;
@ -43,7 +43,6 @@ import java.util.List;

 import es.ugr.swad.swadroid.Constants;
 import es.ugr.swad.swadroid.R;
-import es.ugr.swad.swadroid.analytics.SWADroidTracker;
 import es.ugr.swad.swadroid.gui.DialogFactory;
 import es.ugr.swad.swadroid.gui.ProgressScreen;
 import es.ugr.swad.swadroid.modules.account.CreateAccountActivity;
@ -222,7 +221,6 @@ public class LoginActivity extends AppCompatActivity implements AdapterView.OnIt
     * are presented and no actual login attempt is made.
     */
    private void attemptLogin() {
-        SWADroidTracker.sendScreenView(getApplicationContext(), "SWADroid Login");

        // Values for ID and password at the time of the login attempt.
        String idValue;
@ -353,8 +351,6 @@ public class LoginActivity extends AppCompatActivity implements AdapterView.OnIt
    }

    private void whyMyPasswordNotWorkDialog() {
-        SWADroidTracker.sendScreenView(getApplicationContext(), "SWADroid WhyMyPasswordNotWork");
-
        AlertDialog passwordNotWorkDialog =
                DialogFactory.createNeutralDialog(this,
                        R.layout.dialog_why_password,
@ -373,8 +369,6 @@ public class LoginActivity extends AppCompatActivity implements AdapterView.OnIt
    }

    private void recoverPasswordDialog() {
-        SWADroidTracker.sendScreenView(getApplicationContext(), "SWADroid RecoverPassword");
-
        AlertDialog.Builder builder = new AlertDialog.Builder(this);

        final EditText user = new EditText(getApplicationContext());
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/marks/GetMarks.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/marks/GetMarks.java
@ -26,7 +26,6 @@ import android.util.Log;
 import org.ksoap2.serialization.SoapObject;

 import es.ugr.swad.swadroid.Constants;
-import es.ugr.swad.swadroid.analytics.SWADroidTracker;
 import es.ugr.swad.swadroid.model.User;
 import es.ugr.swad.swadroid.modules.Module;
 import es.ugr.swad.swadroid.modules.login.Login;
@ -73,8 +72,6 @@ public class GetMarks extends Module {
    protected void onStart() {
        super.onStart();

-        SWADroidTracker.sendScreenView(getApplicationContext(), TAG);
-
        fileCode = this.getIntent().getLongExtra("fileCode", 0);

        runConnection();
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/marks/Marks.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/marks/Marks.java
@ -11,7 +11,6 @@ import android.webkit.WebView;

 import es.ugr.swad.swadroid.Constants;
 import es.ugr.swad.swadroid.R;
-import es.ugr.swad.swadroid.analytics.SWADroidTracker;
 import es.ugr.swad.swadroid.gui.MenuActivity;
 import es.ugr.swad.swadroid.gui.WebViewFactory;
 import es.ugr.swad.swadroid.modules.courses.Courses;
@ -49,8 +48,6 @@ public class Marks extends MenuActivity {
    protected void onStart() {
        super.onStart();

-        SWADroidTracker.sendScreenView(getApplicationContext(), TAG);
-
        String content = this.getIntent().getStringExtra("content");

        content = Utils.fixLinks(content);
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/messages/Messages.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/messages/Messages.java
@ -22,7 +22,7 @@ import android.content.DialogInterface;
 import android.content.Intent;
 import android.graphics.Paint;
 import android.os.Bundle;
-import android.support.v7.app.AlertDialog;
+import androidx.appcompat.app.AlertDialog;
 import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.Menu;
@ -46,7 +46,6 @@ import java.util.Vector;

 import es.ugr.swad.swadroid.Constants;
 import es.ugr.swad.swadroid.R;
-import es.ugr.swad.swadroid.analytics.SWADroidTracker;
 import es.ugr.swad.swadroid.database.DataBaseHelper;
 import es.ugr.swad.swadroid.gui.ImageFactory;
 import es.ugr.swad.swadroid.gui.ProgressScreen;
@ -231,12 +230,6 @@ public class Messages extends Module {
        setMETHOD_NAME("sendMessage");
    }

-    @Override
-	protected void onStart() {
-		super.onStart();
-        SWADroidTracker.sendScreenView(getApplicationContext(), TAG);
-	}
-
 	/**
     * Reads user input
     */
@ -463,7 +456,7 @@ public class Messages extends Module {
 	            	}
 	            } catch (Exception e) {
 	                String errorMsg = getString(R.string.errorServerResponseMsg);
-	                error(errorMsg, e, true);
+	                error(errorMsg, e);
 	            }
                return true;
            case android.R.id.home:
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/messages/SearchUsers.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/messages/SearchUsers.java
@ -7,9 +7,9 @@ import android.content.res.Configuration;
 import android.graphics.Typeface;
 import android.os.Build;
 import android.os.Bundle;
-import android.support.v4.view.MenuItemCompat;
-import android.support.v7.app.AlertDialog;
-import android.support.v7.widget.SearchView;
+import androidx.core.view.MenuItemCompat;
+import androidx.appcompat.app.AlertDialog;
+import androidx.appcompat.widget.SearchView;
 import android.text.SpannableString;
 import android.text.style.StyleSpan;
 import android.util.Log;
@ -28,7 +28,6 @@ import java.util.List;
 import java.util.Vector;
 import es.ugr.swad.swadroid.Constants;
 import es.ugr.swad.swadroid.R;
-import es.ugr.swad.swadroid.analytics.SWADroidTracker;
 import es.ugr.swad.swadroid.database.DataBaseHelper;
 import es.ugr.swad.swadroid.gui.ProgressScreen;
 import es.ugr.swad.swadroid.model.FrequentUser;
@ -199,12 +198,6 @@ public class SearchUsers extends Module implements SearchView.OnQueryTextListene
        setMETHOD_NAME("findUsers");
    }

-    @Override
-    protected void onStart() {
-        super.onStart();
-        SWADroidTracker.sendScreenView(getApplicationContext(), TAG);
-    }
-
    @TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/notices/Notices.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/notices/Notices.java
@ -33,7 +33,6 @@ import android.widget.Toast;

 import es.ugr.swad.swadroid.Constants;
 import es.ugr.swad.swadroid.R;
-import es.ugr.swad.swadroid.analytics.SWADroidTracker;
 import es.ugr.swad.swadroid.gui.DialogFactory;
 import es.ugr.swad.swadroid.model.User;
 import es.ugr.swad.swadroid.modules.courses.Courses;
@ -84,7 +83,7 @@ public class Notices extends Module {
            	}
            } catch (Exception e) {
                String errorMsg = getString(R.string.errorServerResponseMsg);
-                error(errorMsg, e, true);
+                error(errorMsg, e);
            }
        }
    };
@ -189,7 +188,7 @@ public class Notices extends Module {
    @Override
    protected void onStart() {
        super.onStart();
-        SWADroidTracker.sendScreenView(getApplicationContext(), TAG);
+
        selectedCourseCode = Courses.getSelectedCourseCode();
        launchNoticeDialog();
    }
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/notifications/NotificationItem.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/notifications/NotificationItem.java
@ -30,7 +30,6 @@ import android.widget.TextView;

 import es.ugr.swad.swadroid.Constants;
 import es.ugr.swad.swadroid.R;
-import es.ugr.swad.swadroid.analytics.SWADroidTracker;
 import es.ugr.swad.swadroid.gui.ImageFactory;
 import es.ugr.swad.swadroid.gui.MenuActivity;
 import es.ugr.swad.swadroid.gui.WebViewFactory;
@ -122,7 +121,6 @@ public class NotificationItem extends MenuActivity {
        		Log.w(TAG, "Not connected: Marking the notification " + notifCode + " as read in SWAD was deferred");
        	}
        }
-        SWADroidTracker.sendScreenView(getApplicationContext(), TAG);
    }

 	/* (non-Javadoc)
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/notifications/Notifications.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/notifications/Notifications.java
@ -30,7 +30,7 @@ import android.content.Intent;
 import android.content.IntentFilter;
 import android.os.Build;
 import android.os.Bundle;
-import android.support.v4.widget.SwipeRefreshLayout;
+import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
 import android.util.Log;
 import android.view.Menu;
 import android.view.MenuItem;
@ -50,7 +50,6 @@ import java.util.Vector;

 import es.ugr.swad.swadroid.Constants;
 import es.ugr.swad.swadroid.R;
-import es.ugr.swad.swadroid.analytics.SWADroidTracker;
 import es.ugr.swad.swadroid.database.DataBaseHelper;
 import es.ugr.swad.swadroid.gui.AlertNotificationFactory;
 import es.ugr.swad.swadroid.model.Model;
@ -341,7 +340,6 @@ public class Notifications extends Module implements
 	@Override
 	protected void onResume() {
 		super.onResume();
-        SWADroidTracker.sendScreenView(getApplicationContext(), TAG);
 		
 		IntentFilter intentFilter = new IntentFilter();
 		intentFilter.addAction(NotificationsSyncAdapterService.START_SYNC);
@ -543,7 +541,7 @@ public class Notifications extends Module implements
 		try {
 			dbHelper.emptyTable(DataBaseHelper.DB_TABLE_NOTIFICATIONS);
 		} catch (Exception e) {
-			error(e.getMessage(), e, true);
+			error(e.getMessage(), e);
 		}
 	}

@ -570,7 +568,7 @@ public class Notifications extends Module implements
 				notifCount = intent.getIntExtra("notifCount", 0);
 				errorMessage = intent.getStringExtra("errorMessage");
 				if ((errorMessage != null) && !errorMessage.equals("")) {
-					error(errorMessage, null, true);
+					error(errorMessage, null);
 				} else if (notifCount == 0) {
 					Toast.makeText(context, R.string.NoNotificationsMsg,
 							Toast.LENGTH_LONG).show();
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/notifications/NotificationsExpandableListAdapter.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/notifications/NotificationsExpandableListAdapter.java
@ -20,7 +20,7 @@ package es.ugr.swad.swadroid.modules.notifications;

 import android.app.Activity;
 import android.graphics.Typeface;
-import android.support.v4.content.ContextCompat;
+import androidx.core.content.ContextCompat;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/notifications/NotificationsMarkAllAsRead.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/notifications/NotificationsMarkAllAsRead.java
@ -24,7 +24,6 @@ import android.util.Log;
 import org.ksoap2.serialization.SoapPrimitive;

 import es.ugr.swad.swadroid.Constants;
-import es.ugr.swad.swadroid.analytics.SWADroidTracker;
 import es.ugr.swad.swadroid.modules.Module;
 import es.ugr.swad.swadroid.modules.login.Login;
 import es.ugr.swad.swadroid.utils.Utils;
@ -53,13 +52,6 @@ public class NotificationsMarkAllAsRead extends Module {
        getSupportActionBar().hide();
        runConnection();
    }
-
-    @Override
-    protected void onStart() {
-        super.onStart();
-
-        SWADroidTracker.sendScreenView(getApplicationContext(), TAG);
-    }
    
    /* (non-Javadoc)
     * @see es.ugr.swad.swadroid.modules.Module#requestService()
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/notifications/NotificationsSyncAdapterService.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/notifications/NotificationsSyncAdapterService.java
@ -52,7 +52,6 @@ import javax.net.ssl.SSLException;
 import es.ugr.swad.swadroid.Config;
 import es.ugr.swad.swadroid.Constants;
 import es.ugr.swad.swadroid.R;
-import es.ugr.swad.swadroid.analytics.SWADroidTracker;
 import es.ugr.swad.swadroid.database.DataBaseHelper;
 import es.ugr.swad.swadroid.gui.AlertNotificationFactory;
 import es.ugr.swad.swadroid.model.Model;
@ -106,7 +105,6 @@ public class NotificationsSyncAdapterService extends Service {

        @Override
        public void onPerformSync(Account account, Bundle extras, String authority, ContentProviderClient provider, SyncResult syncResult) {
-            boolean sendException = true;
            int httpStatusCode;

        	try {
@ -121,11 +119,9 @@ public class NotificationsSyncAdapterService extends Service {
                    switch (es.faultstring) {
                        case "Bad log in":
                            errorMessage = mContext.getString(R.string.errorBadLoginMsg);
-                            sendException = false;
                            break;
                        case "Bad web service key":
                            errorMessage = mContext.getString(R.string.errorBadLoginMsg);
-                            sendException = false;

                            // Force logout and reset password (this will show again
                            // the login screen)
@ -141,7 +137,6 @@ public class NotificationsSyncAdapterService extends Service {
                    }
                } else if ((e.getClass() == TimeoutException.class) || (e.getClass() == SocketTimeoutException.class)) {
                    errorMessage = mContext.getString(R.string.errorTimeoutMsg);
-                    sendException = false;
                } else if ((e.getClass() == CertificateException.class) || (e .getClass() == SSLException.class)) {
                    errorMessage = mContext.getString(R.string.errorServerCertificateMsg);
                } else if (e.getClass() == HttpResponseException.class) {
@ -154,7 +149,6 @@ public class NotificationsSyncAdapterService extends Service {
                            break;

                        case 503: errorMessage = mContext.getString(R.string.errorServiceUnavailableMsg);
-                            sendException = false;
                            break;

                        default:  errorMessage = e.getMessage();
@ -176,12 +170,7 @@ public class NotificationsSyncAdapterService extends Service {
                	dbHelper.endTransaction(false);
                }

-                //Send exception details to Google Analytics
-                if(sendException) {
-                    SWADroidTracker.sendException(mContext, e, false);
-                } else {
-                    Log.e(TAG, errorMessage, e);
-                }
+                Log.e(TAG, errorMessage, e);

                //Notify synchronization stop
                Intent stopIntent = new Intent();
@ -215,9 +204,6 @@ public class NotificationsSyncAdapterService extends Service {
            webserviceClient = null;
        } catch (Exception e) {
            Log.e(TAG, "Error initializing database and preferences", e);
-
-            //Send exception details to Google Analytics
-            SWADroidTracker.sendException(mCtx, e, false);
        }

 		super.onCreate();
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/qr/GenerateQR.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/qr/GenerateQR.java
@ -18,7 +18,6 @@ import java.util.Map;

 import es.ugr.swad.swadroid.Constants;
 import es.ugr.swad.swadroid.R;
-import es.ugr.swad.swadroid.analytics.SWADroidTracker;
 import es.ugr.swad.swadroid.gui.MenuActivity;
 import es.ugr.swad.swadroid.modules.login.Login;

@ -65,8 +64,6 @@ public class GenerateQR extends MenuActivity {
    protected void onStart() {
        super.onStart();

-        SWADroidTracker.sendScreenView(getApplicationContext(), TAG);
-
        if (!Login.isLogged() || (Login.getLoggedUser() == null)) {
            Intent activity = new Intent(getApplicationContext(), Login.class);
            startActivityForResult(activity, Constants.LOGIN_REQUEST_CODE);
@ -116,7 +113,7 @@ public class GenerateQR extends MenuActivity {
            qrCode = barcodeEncoder.encodeBitmap(qrContents, BarcodeFormat.QR_CODE, CODE_WIDTH, CODE_HEIGHT, hintMap);
            qr_image.setImageBitmap(qrCode);
        } catch (WriterException e) {
-            error(e.getMessage(), e, true);
+            error(e.getMessage(), e);
        }
    }
 }
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/rollcall/ContinuousCaptureActivity.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/rollcall/ContinuousCaptureActivity.java
@ -3,7 +3,7 @@ package es.ugr.swad.swadroid.modules.rollcall;
 import android.media.MediaPlayer;
 import android.os.Bundle;
 import android.os.Handler;
-import android.support.v7.app.AppCompatActivity;
+import androidx.appcompat.app.AppCompatActivity;
 import android.util.Log;
 import android.view.Gravity;
 import android.view.KeyEvent;
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/rollcall/EventsCursorAdapter.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/rollcall/EventsCursorAdapter.java
@ -23,7 +23,7 @@ package es.ugr.swad.swadroid.modules.rollcall;
 import android.content.Context;
 import android.database.Cursor;
 import android.graphics.Typeface;
-import android.support.v4.content.ContextCompat;
+import androidx.core.content.ContextCompat;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/rollcall/EventsDownload.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/rollcall/EventsDownload.java
@ -80,7 +80,7 @@ public class EventsDownload extends Module {
            runConnection();
        } catch (Exception e) {
            String errorMsg = getString(R.string.errorServerResponseMsg);
-            error(errorMsg, e, true);
+            error(errorMsg, e);
        }
    }

--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/rollcall/Rollcall.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/rollcall/Rollcall.java
@ -27,7 +27,7 @@ import android.database.Cursor;
 import android.os.Build;
 import android.os.Bundle;
 import android.os.Handler;
-import android.support.v4.widget.SwipeRefreshLayout;
+import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
 import android.util.Log;
 import android.view.View;
 import android.widget.AbsListView;
@ -39,7 +39,6 @@ import java.lang.ref.WeakReference;

 import es.ugr.swad.swadroid.Constants;
 import es.ugr.swad.swadroid.R;
-import es.ugr.swad.swadroid.analytics.SWADroidTracker;
 import es.ugr.swad.swadroid.gui.DialogFactory;
 import es.ugr.swad.swadroid.gui.MenuExpandableListActivity;
 import es.ugr.swad.swadroid.gui.ProgressScreen;
@ -51,197 +50,197 @@ import es.ugr.swad.swadroid.modules.courses.Courses;
 * @author Juan Miguel Boyero Corral <juanmi1982@gmail.com>
 */
 public class Rollcall extends MenuExpandableListActivity implements
-                                                         SwipeRefreshLayout.OnRefreshListener {
+        SwipeRefreshLayout.OnRefreshListener {

-  /**
-   * Rollcall tag name for Logcat
-   */
-  private static final String TAG = Constants.APP_TAG + " Rollcall";
-  /**
-   * ListView of events
-   */
-  private static ListView lvEvents;
-  /**
-   * Adapter for ListView of events
-   */
-  private static EventsCursorAdapter adapter;
-  private final RefreshAdapterHandler mHandler = new RefreshAdapterHandler(this);
-  private final Runnable mRunnable = new Runnable() {
-    @Override
-    public void run() {
+    /**
+     * Rollcall tag name for Logcat
+     */
+    private static final String TAG = Constants.APP_TAG + " Rollcall";
+    /**
+     * ListView of events
+     */
+    private ListView lvEvents;
+    /**
+     * Adapter for ListView of events
+     */
+    private static EventsCursorAdapter adapter;
+    private final RefreshAdapterHandler mHandler = new RefreshAdapterHandler(this);
+    private final Runnable mRunnable = new Runnable() {
+        @Override
+        public void run() {
      /*
    Database cursor for Adapter of events
   */
-      Cursor dbCursor = dbHelper.getEventsCourseCursor(Courses.getSelectedCourseCode());
-      startManagingCursor(dbCursor);
+            Cursor dbCursor = dbHelper.getEventsCourseCursor(Courses.getSelectedCourseCode());
+            startManagingCursor(dbCursor);


-                /*
-                 * If there aren't events to show, hide the events lvEvents
-                 * and show the empty events message
-                 */
-      if ((dbCursor == null) || (dbCursor.getCount() == 0)) {
-        Log.d(TAG, "Events list is empty");
+            /*
+             * If there aren't events to show, hide the events lvEvents
+             * and show the empty events message
+             */
+            if ((dbCursor == null) || (dbCursor.getCount() == 0)) {
+                Log.d(TAG, "Events list is empty");

-        emptyEventsTextView.setText(R.string.eventsEmptyListMsg);
-        emptyEventsTextView.setVisibility(View.VISIBLE);
+                emptyEventsTextView.setText(R.string.eventsEmptyListMsg);
+                emptyEventsTextView.setVisibility(View.VISIBLE);

-        lvEvents.setVisibility(View.GONE);
-      } else {
-        Log.d(TAG, "Events list is not empty");
+                lvEvents.setVisibility(View.GONE);
+            } else {
+                Log.d(TAG, "Events list is not empty");

-        emptyEventsTextView.setVisibility(View.GONE);
-        lvEvents.setVisibility(View.VISIBLE);
-      }
+                emptyEventsTextView.setVisibility(View.GONE);
+                lvEvents.setVisibility(View.VISIBLE);
+            }

-      adapter = new EventsCursorAdapter(getBaseContext(), dbCursor, dbHelper);
-      lvEvents.setAdapter(adapter);
+            adapter = new EventsCursorAdapter(getBaseContext(), dbCursor, dbHelper);
+            lvEvents.setAdapter(adapter);

-      mProgressScreen.hide();
-    }
-  };
-  /**
-   * TextView for the empty events message
-   */
-  private TextView emptyEventsTextView;
-  /**
-   * Layout with "Pull to refresh" function
-   */
-  private SwipeRefreshLayout refreshLayout;
-  /**
-   * Progress screen
-   */
-  private ProgressScreen mProgressScreen;
-  /**
-   * ListView click listener
-   */
-  private ListView.OnItemClickListener clickListener = new ListView.OnItemClickListener() {
+            mProgressScreen.hide();
+        }
+    };
+    /**
+     * TextView for the empty events message
+     */
+    private TextView emptyEventsTextView;
+    /**
+     * Layout with "Pull to refresh" function
+     */
+    private SwipeRefreshLayout refreshLayout;
+    /**
+     * Progress screen
+     */
+    private ProgressScreen mProgressScreen;
+    /**
+     * ListView click listener
+     */
+    private ListView.OnItemClickListener clickListener = new ListView.OnItemClickListener() {
+        @Override
+        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+            Intent activity = new Intent(getApplicationContext(),
+                    UsersActivity.class);
+            activity.putExtra("attendanceEventCode",
+                    (int) adapter.getItemId(position));
+            startActivity(activity);
+        }
+    };
+
+    /* (non-Javadoc)
+     * @see es.ugr.swad.swadroid.MenuExpandableListActivity#onCreate(android.os.Bundle)
+     */
    @Override
-    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
-      Intent activity = new Intent(getApplicationContext(),
-                                   UsersActivity.class);
-      activity.putExtra("attendanceEventCode",
-                        (int) adapter.getItemId(position));
-      startActivity(activity);
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.list_items_pulltorefresh);
+
+        refreshLayout = findViewById(R.id.swipe_container_list);
+        emptyEventsTextView = findViewById(R.id.list_item_title);
+
+        View mProgressScreenView = findViewById(R.id.progress_screen);
+        mProgressScreen = new ProgressScreen(mProgressScreenView, refreshLayout,
+                getString(R.string.loadingMsg), this);
+
+        lvEvents = findViewById(R.id.list_pulltorefresh);
+
+        lvEvents.setOnItemClickListener(clickListener);
+        lvEvents.setOnScrollListener(new AbsListView.OnScrollListener() {
+            @Override
+            public void onScrollStateChanged(AbsListView absListView, int scrollState) {
+            }
+
+            @Override
+            public void onScroll(AbsListView absListView, int firstVisibleItem,
+                                 int visibleItemCount, int totalItemCount) {
+
+                boolean enable = true;
+                if ((lvEvents != null) && (lvEvents.getChildCount() > 0)) {
+                    // check if the first item of the list is visible
+                    boolean firstItemVisible = lvEvents.getFirstVisiblePosition() == 0;
+                    // check if the top of the first item is visible
+                    boolean topOfFirstItemVisible = lvEvents.getChildAt(0).getTop() == 0;
+                    // enabling or disabling the refresh layout
+                    enable = firstItemVisible && topOfFirstItemVisible;
+                }
+                refreshLayout.setEnabled(enable);
+            }
+        });
+
+        refreshLayout.setOnRefreshListener(this);
+        setAppearance();
+
+        getSupportActionBar().setSubtitle(Courses.getSelectedCourseShortName());
+
+        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    }
-  };

-  /* (non-Javadoc)
-   * @see es.ugr.swad.swadroid.MenuExpandableListActivity#onCreate(android.os.Bundle)
-   */
-  @Override
-  protected void onCreate(Bundle savedInstanceState) {
-    super.onCreate(savedInstanceState);
-    setContentView(R.layout.list_items_pulltorefresh);
+    /* (non-Javadoc)
+     * @see es.ugr.swad.swadroid.MenuExpandableListActivity#Override(android.os.Bundle)
+     */
+    @Override
+    protected void onStart() {
+        super.onStart();

-    refreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipe_container_list);
-    emptyEventsTextView = (TextView) findViewById(R.id.list_item_title);
-
-    View mProgressScreenView = findViewById(R.id.progress_screen);
-    mProgressScreen = new ProgressScreen(mProgressScreenView, refreshLayout,
-            getString(R.string.loadingMsg), this);
-
-    lvEvents = (ListView) findViewById(R.id.list_pulltorefresh);
-
-    lvEvents.setOnItemClickListener(clickListener);
-    lvEvents.setOnScrollListener(new AbsListView.OnScrollListener() {
-      @Override
-      public void onScrollStateChanged(AbsListView absListView, int scrollState) {
-      }
-
-      @Override
-      public void onScroll(AbsListView absListView, int firstVisibleItem,
-                           int visibleItemCount, int totalItemCount) {
-
-        boolean enable = true;
-        if ((lvEvents != null) && (lvEvents.getChildCount() > 0)) {
-          // check if the first item of the list is visible
-          boolean firstItemVisible = lvEvents.getFirstVisiblePosition() == 0;
-          // check if the top of the first item is visible
-          boolean topOfFirstItemVisible = lvEvents.getChildAt(0).getTop() == 0;
-          // enabling or disabling the refresh layout
-          enable = firstItemVisible && topOfFirstItemVisible;
-        }
-        refreshLayout.setEnabled(enable);
-      }
-    });
-
-    refreshLayout.setOnRefreshListener(this);
-    setAppearance();
-
-    getSupportActionBar().setSubtitle(Courses.getSelectedCourseShortName());
-
-    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
-  }
-
-  /* (non-Javadoc)
-   * @see es.ugr.swad.swadroid.MenuExpandableListActivity#Override(android.os.Bundle)
-   */
-  @Override
-  protected void onStart() {
-    super.onStart();
-    SWADroidTracker.sendScreenView(getApplicationContext(), TAG);
-
-    //Refresh ListView of events
-    refreshAdapter();
-  }
-
-  @Override
-  protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
-    switch (requestCode) {
-      case Constants.ROLLCALL_EVENTS_DOWNLOAD_REQUEST_CODE:
+        //Refresh ListView of events
        refreshAdapter();
-        break;
    }
-  }

-  private void refreshAdapter() {
-    mHandler.post(mRunnable);
-  }
-
-  private void refreshEvents() {
-    mProgressScreen.show();
-    Intent activity = new Intent(this, EventsDownload.class);
-    startActivityForResult(activity, Constants.ROLLCALL_EVENTS_DOWNLOAD_REQUEST_CODE);
-  }
-
-  /**
-   * It shows the SwipeRefreshLayout progress
-   */
-  private void showSwipeProgress() {
-    refreshLayout.setRefreshing(true);
-  }
-
-  /**
-   * It shows the SwipeRefreshLayout progress
-   */
-  private void hideSwipeProgress() {
-    refreshLayout.setRefreshing(false);
-  }
-
-  @TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
-  private void setAppearance() {
-    refreshLayout.setColorSchemeResources(android.R.color.holo_blue_bright,
-            android.R.color.holo_green_light,
-            android.R.color.holo_orange_light,
-            android.R.color.holo_red_light);
-  }
-
-  private boolean hasPendingEvents() {
-    boolean hasPendingEvents = false;
-    TextView sendingStateTextView;
-      int i = 0;
-
-    if ((lvEvents != null) && (lvEvents.getChildCount() > 0)) {
-       while(!hasPendingEvents && (i<lvEvents.getChildCount())) {
-          sendingStateTextView = (TextView) lvEvents.getChildAt(i).findViewById(R.id.sendingStateTextView);
-          hasPendingEvents = sendingStateTextView.getText().equals(getString(R.string.sendingStatePending));
-          i++;
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
+        switch (requestCode) {
+            case Constants.ROLLCALL_EVENTS_DOWNLOAD_REQUEST_CODE:
+                refreshAdapter();
+                break;
        }
+        super.onActivityResult(requestCode, resultCode, intent);
    }

-    return hasPendingEvents;
-  }
+    private void refreshAdapter() {
+        mHandler.post(mRunnable);
+    }
+
+    private void refreshEvents() {
+        mProgressScreen.show();
+        Intent activity = new Intent(this, EventsDownload.class);
+        startActivityForResult(activity, Constants.ROLLCALL_EVENTS_DOWNLOAD_REQUEST_CODE);
+    }
+
+    /**
+     * It shows the SwipeRefreshLayout progress
+     */
+    private void showSwipeProgress() {
+        refreshLayout.setRefreshing(true);
+    }
+
+    /**
+     * It shows the SwipeRefreshLayout progress
+     */
+    private void hideSwipeProgress() {
+        refreshLayout.setRefreshing(false);
+    }
+
+    @TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
+    private void setAppearance() {
+        refreshLayout.setColorSchemeResources(android.R.color.holo_blue_bright,
+                android.R.color.holo_green_light,
+                android.R.color.holo_orange_light,
+                android.R.color.holo_red_light);
+    }
+
+    private boolean hasPendingEvents() {
+        boolean hasPendingEvents = false;
+        TextView sendingStateTextView;
+        int i = 0;
+
+        if ((lvEvents != null) && (lvEvents.getChildCount() > 0)) {
+            while(!hasPendingEvents && (i<lvEvents.getChildCount())) {
+                sendingStateTextView = lvEvents.getChildAt(i).findViewById(R.id.sendingStateTextView);
+                hasPendingEvents = sendingStateTextView.getText().equals(getString(R.string.sendingStatePending));
+                i++;
+            }
+        }
+
+        return hasPendingEvents;
+    }

    private void updateEvents() {
        showSwipeProgress();
@ -251,48 +250,48 @@ public class Rollcall extends MenuExpandableListActivity implements
        hideSwipeProgress();
    }

-  /**
-   * It must be overriden by parent classes if manual swipe is enabled.
-   */
-  @Override
-  public void onRefresh() {
-    if(!hasPendingEvents()) {
-        updateEvents();
-    } else {
-        AlertDialog cleanEventsDialog = DialogFactory.createWarningDialog(this,
-                -1,
-                R.string.areYouSure,
-                R.string.updatePendingEventsMsg,
-                R.string.yesMsg,
-                R.string.noMsg,
-                true,
-                new DialogInterface.OnClickListener() {
-                    public void onClick(DialogInterface dialog, int id) {
-                        dialog.cancel();
+    /**
+     * It must be overriden by parent classes if manual swipe is enabled.
+     */
+    @Override
+    public void onRefresh() {
+        if(!hasPendingEvents()) {
+            updateEvents();
+        } else {
+            AlertDialog cleanEventsDialog = DialogFactory.createWarningDialog(this,
+                    -1,
+                    R.string.areYouSure,
+                    R.string.updatePendingEventsMsg,
+                    R.string.yesMsg,
+                    R.string.noMsg,
+                    true,
+                    new DialogInterface.OnClickListener() {
+                        public void onClick(DialogInterface dialog, int id) {
+                            dialog.cancel();

-                        updateEvents();
-                    }
-                },
-                new DialogInterface.OnClickListener() {
-                    public void onClick(DialogInterface dialog, int id) {
-                        dialog.cancel();
-                    }
-                },
-                null);
+                            updateEvents();
+                        }
+                    },
+                    new DialogInterface.OnClickListener() {
+                        public void onClick(DialogInterface dialog, int id) {
+                            dialog.cancel();
+                        }
+                    },
+                    null);

-        cleanEventsDialog.show();
+            cleanEventsDialog.show();
+        }
+
+        hideSwipeProgress();
    }

-      hideSwipeProgress();
-  }
+    private static class RefreshAdapterHandler extends Handler {

-  private static class RefreshAdapterHandler extends Handler {
+        private final WeakReference<Rollcall> mActivity;

-    private final WeakReference<Rollcall> mActivity;
+        public RefreshAdapterHandler(Rollcall activity) {
+            mActivity = new WeakReference<>(activity);
+        }

-    public RefreshAdapterHandler(Rollcall activity) {
-      mActivity = new WeakReference<>(activity);
    }
-
-  }
 }
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/rollcall/UsersActivity.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/rollcall/UsersActivity.java
@ -31,10 +31,10 @@ import android.database.Cursor;
 import android.os.Build;
 import android.os.Bundle;
 import android.os.Handler;
-import android.support.annotation.NonNull;
-import android.support.v4.app.ActivityCompat;
-import android.support.v4.content.ContextCompat;
-import android.support.v4.widget.SwipeRefreshLayout;
+import androidx.annotation.NonNull;
+import androidx.core.app.ActivityCompat;
+import androidx.core.content.ContextCompat;
+import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
 import android.util.Log;
 import android.view.Menu;
 import android.view.MenuItem;
@ -49,7 +49,6 @@ import java.util.List;

 import es.ugr.swad.swadroid.Constants;
 import es.ugr.swad.swadroid.R;
-import es.ugr.swad.swadroid.analytics.SWADroidTracker;
 import es.ugr.swad.swadroid.database.DataBaseHelper;
 import es.ugr.swad.swadroid.gui.DialogFactory;
 import es.ugr.swad.swadroid.gui.MenuExpandableListActivity;
@ -75,7 +74,7 @@ public class UsersActivity extends MenuExpandableListActivity implements
    /**
     * ListView of users
     */
-    private static ListView lvUsers;
+    private ListView lvUsers;
    /**
     * Adapter for ListView of users
     */
@ -106,6 +105,16 @@ public class UsersActivity extends MenuExpandableListActivity implements
     */
    private IntentIntegrator integrator;

+    /**
+     * Button for send attendances to SWAD
+     */
+    private MenuItem mSendUsersMenuItem;
+
+    /**
+     * Button for clear all users for an event
+     */
+    private MenuItem mCleanUsersMenuItem;
+
    /* (non-Javadoc)
     * @see es.ugr.swad.swadroid.MenuExpandableListActivity#onCreate(android.os.Bundle)
     */
@ -114,14 +123,14 @@ public class UsersActivity extends MenuExpandableListActivity implements
        super.onCreate(savedInstanceState);
        setContentView(R.layout.list_items_pulltorefresh);

-        refreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipe_container_list);
-        emptyUsersTextView = (TextView) findViewById(R.id.list_item_title);
+        refreshLayout = findViewById(R.id.swipe_container_list);
+        emptyUsersTextView = findViewById(R.id.list_item_title);

        View mProgressScreenView = findViewById(R.id.progress_screen);
        mProgressScreen = new ProgressScreen(mProgressScreenView, refreshLayout,
                getString(R.string.loadingMsg), this);

-        lvUsers = (ListView) findViewById(R.id.list_pulltorefresh);
+        lvUsers = findViewById(R.id.list_pulltorefresh);

        lvUsers.setOnScrollListener(new AbsListView.OnScrollListener() {
            @Override
@ -158,7 +167,6 @@ public class UsersActivity extends MenuExpandableListActivity implements
    @Override
    protected void onStart() {
        super.onStart();
-        SWADroidTracker.sendScreenView(getApplicationContext(), TAG);

        //Refresh ListView of users
        refreshAdapter();
@ -167,6 +175,9 @@ public class UsersActivity extends MenuExpandableListActivity implements
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
        refreshAdapter();
+        setActionMenuItemsEnabled(true);
+
+        super.onActivityResult(requestCode, resultCode, intent);
    }

    private void refreshAdapter() {
@ -245,39 +256,50 @@ public class UsersActivity extends MenuExpandableListActivity implements
     */
    @Override
    public void onRefresh() {
+        setActionMenuItemsEnabled(false);
        showSwipeProgress();

        refreshUsers();

        hideSwipeProgress();
+        setActionMenuItemsEnabled(true);
    }

    private String getUsersCodes() {
-        String usersCodes = "";
+        StringBuilder usersCodes = new StringBuilder();
        List<UserAttendance> usersList = dbHelper.getUsersEvent(eventCode);

        //Concatenate the user code of all users checked as present and separate them with commas
        for(UserAttendance user : usersList) {
            if(user.isUserPresent()) {
-                usersCodes += user.getId() + ",";
+                usersCodes.append(user.getId()).append(",");
            }
        }

        //Remove final comma
-        if(!usersCodes.isEmpty()) {
-            usersCodes = usersCodes.substring(0, usersCodes.length()-1);
+        if(usersCodes.length() > 0) {
+            usersCodes = new StringBuilder(usersCodes.substring(0, usersCodes.length() - 1));
        }

-        return usersCodes;
+        return usersCodes.toString();
    }

    private void scanQRCode() {
        integrator.initiateScan();
    }

+    private void setActionMenuItemsEnabled(boolean enabled) {
+        mSendUsersMenuItem.setEnabled(enabled);
+        mCleanUsersMenuItem.setEnabled(enabled);
+    }
+
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.rollcall_activity_actions, menu);
+
+        mSendUsersMenuItem = menu.findItem(R.id.action_sendMsg);
+        mCleanUsersMenuItem = menu.findItem(R.id.action_cleanUsers);
+
        return super.onCreateOptionsMenu(menu);
    }

@ -298,12 +320,14 @@ public class UsersActivity extends MenuExpandableListActivity implements
                    }
                } else {
                    //If the device has no rear camera available show error message
-                    error(getString(R.string.noCameraFound), null, false);
+                    error(getString(R.string.noCameraFound), null);
                }

                return true;

            case R.id.action_sendMsg:
+                setActionMenuItemsEnabled(false);
+
                String usersCodes = getUsersCodes();

                Intent activity = new Intent(getApplicationContext(),
@ -320,6 +344,8 @@ public class UsersActivity extends MenuExpandableListActivity implements
                return true;

            case R.id.action_cleanUsers:
+                setActionMenuItemsEnabled(false);
+
                AlertDialog cleanDBDialog = DialogFactory.createWarningDialog(this,
                        -1,
                        R.string.areYouSure,
@ -360,7 +386,7 @@ public class UsersActivity extends MenuExpandableListActivity implements
    }

    @Override
-    public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[],
+    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,
                                           @NonNull int[] grantResults) {
        switch (requestCode) {
            case Constants.PERMISSIONS_REQUEST_CAMERA: {
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/rollcall/UsersCursorAdapter.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/rollcall/UsersCursorAdapter.java
@ -108,7 +108,7 @@ public class UsersCursorAdapter extends CursorAdapter {
        String userFirstname = crypto.decrypt(cursor.getString(cursor.getColumnIndex("userFirstname")));
        String userID = crypto.decrypt(cursor.getString(cursor.getColumnIndex("userID")));
        final long userCode = cursor.getLong(cursor.getColumnIndex("userCode"));
-        String userPhoto = cursor.getString(cursor.getColumnIndex("photoPath"));
+        String userPhoto = crypto.decrypt(cursor.getString(cursor.getColumnIndex("photoPath")));
        boolean present = Utils.parseIntBool(cursor.getInt(cursor.getColumnIndex("present")));

        // Replace NULL value for strings returned by the webservice with the empty string
@ -127,10 +127,10 @@ public class UsersCursorAdapter extends CursorAdapter {
        final ViewHolder holder = (ViewHolder) view.getTag();
        view.setTag(holder);

-        holder.image = (ImageView) view.findViewById(R.id.imageView1);
-        holder.text1 = (TextView) view.findViewById(R.id.TextView1);
-        holder.text2 = (TextView) view.findViewById(R.id.TextView2);
-        holder.checkbox = (CheckBox) view.findViewById(R.id.check);
+        holder.image = view.findViewById(R.id.imageView1);
+        holder.text1 = view.findViewById(R.id.TextView1);
+        holder.text2 = view.findViewById(R.id.TextView2);
+        holder.checkbox = view.findViewById(R.id.check);

        holder.checkbox.setChecked(present);
        holder.checkbox.setOnClickListener(new View.OnClickListener() {
@ -152,12 +152,13 @@ public class UsersCursorAdapter extends CursorAdapter {
            }
        });

-        holder.image.setImageResource(R.drawable.usr_bl);
-        if(userPhoto != null) {
-            ImageFactory.displayImage(loader, crypto.decrypt(userPhoto), holder.image);
+        if((userPhoto != null) && !userPhoto.isEmpty()) {
+            ImageFactory.displayImage(loader, userPhoto, holder.image);
+        } else {
+            holder.image.setImageResource(R.drawable.usr_bl);
        }

-        holder.text1.setText(userSurname1 + " " + userSurname2 + ", " + userFirstname);
+        holder.text1.setText(String.format("%s %s, %s", userSurname1, userSurname2, userFirstname));
        holder.text2.setText(userID);
    }

@ -166,10 +167,10 @@ public class UsersCursorAdapter extends CursorAdapter {
        View view = inflater.inflate(R.layout.users_list_item, parent, false);
        ViewHolder holder = new ViewHolder();

-        holder.image = (ImageView) view.findViewById(R.id.imageView1);
-        holder.text1 = (TextView) view.findViewById(R.id.TextView1);
-        holder.text2 = (TextView) view.findViewById(R.id.TextView2);
-        holder.checkbox = (CheckBox) view.findViewById(R.id.check);
+        holder.image = view.findViewById(R.id.imageView1);
+        holder.text1 = view.findViewById(R.id.TextView1);
+        holder.text2 = view.findViewById(R.id.TextView2);
+        holder.checkbox = view.findViewById(R.id.check);
        view.setTag(holder);

        return view;
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/rollcall/UsersDownload.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/rollcall/UsersDownload.java
@ -81,7 +81,7 @@ public class UsersDownload extends Module {
            runConnection();
        } catch (Exception e) {
            String errorMsg = getString(R.string.errorServerResponseMsg);
-            error(errorMsg, e, true);
+            error(errorMsg, e);
        }
    }

@ -122,7 +122,7 @@ public class UsersDownload extends Module {
                if (userSurname1.equalsIgnoreCase(Constants.NULL_VALUE)) userSurname1 = "";
                if (userSurname2.equalsIgnoreCase(Constants.NULL_VALUE)) userSurname2 = "";
                if (userFirstname.equalsIgnoreCase(Constants.NULL_VALUE)) userFirstname = "";
-                if (userPhoto.equalsIgnoreCase(Constants.NULL_VALUE)) userPhoto = null;
+                if (userPhoto.equalsIgnoreCase(Constants.NULL_VALUE)) userPhoto = "";

                //Inserts user data into database
                dbHelper.insertUser(new User(userCode, null, userID, userNickname, userSurname1, userSurname2,
@ -153,7 +153,7 @@ public class UsersDownload extends Module {
        if (numUsers == 0) {
            Toast.makeText(this, R.string.noUsersAvailableMsg, Toast.LENGTH_LONG).show();
        } else {
-            String msg = String.valueOf(numUsers) + " " + getResources().getString(R.string.usersUpdated);
+            String msg = numUsers + " " + getResources().getString(R.string.usersUpdated);
            Toast.makeText(this, msg, Toast.LENGTH_LONG).show();
        }

--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/rollcall/UsersSend.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/rollcall/UsersSend.java
@ -91,7 +91,7 @@ public class UsersSend extends Module {
            runConnection();
        } catch (Exception e) {
            String errorMsg = getString(R.string.errorServerResponseMsg);
-            error(errorMsg, e, true);
+            error(errorMsg, e);
        }
    }

--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/tests/CheckedAnswersArrayAdapter.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/tests/CheckedAnswersArrayAdapter.java
@ -20,7 +20,7 @@ package es.ugr.swad.swadroid.modules.tests;

 import android.content.Context;
 import android.graphics.Color;
-import android.support.v4.content.ContextCompat;
+import androidx.core.content.ContextCompat;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.View.OnClickListener;
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/tests/Tests.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/tests/Tests.java
@ -30,7 +30,6 @@ import java.util.List;

 import es.ugr.swad.swadroid.Constants;
 import es.ugr.swad.swadroid.R;
-import es.ugr.swad.swadroid.analytics.SWADroidTracker;
 import es.ugr.swad.swadroid.gui.ImageListItem;
 import es.ugr.swad.swadroid.gui.MenuActivity;
 import es.ugr.swad.swadroid.gui.ProgressScreen;
@ -71,8 +70,6 @@ public class Tests extends MenuActivity implements OnItemClickListener {
        mProgressScreen = new ProgressScreen(mProgressScreenView, mTestsMenuLayoutView,
                getString(R.string.syncronizingMsg), this);

-        SWADroidTracker.sendScreenView(getApplicationContext(), TAG);
-
        for (int i = 0; i < titles.length; i++) {
            ImageListItem item = new ImageListItem(images[i], titles[i]);
            imageListItems.add(item);
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/tests/TestsConfigDownload.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/tests/TestsConfigDownload.java
@ -81,7 +81,7 @@ public class TestsConfigDownload extends Module {
            runConnection();
        } catch (Exception e) {
            String errorMsg = getString(R.string.errorServerResponseMsg);
-            error(errorMsg, e, true);
+            error(errorMsg, e);
        }
    }

--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/tests/TestsMake.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/modules/tests/TestsMake.java
@ -23,8 +23,8 @@ import android.database.Cursor;
 import android.graphics.Color;
 import android.os.Build;
 import android.os.Bundle;
-import android.support.v4.content.ContextCompat;
-import android.support.v4.view.MenuItemCompat;
+import androidx.core.content.ContextCompat;
+import androidx.core.view.MenuItemCompat;
 import android.text.InputType;
 import android.util.Log;
 import android.util.SparseBooleanArray;
@ -51,7 +51,6 @@ import java.util.List;

 import es.ugr.swad.swadroid.Constants;
 import es.ugr.swad.swadroid.R;
-import es.ugr.swad.swadroid.analytics.SWADroidTracker;
 import es.ugr.swad.swadroid.database.DataBaseHelper;
 import es.ugr.swad.swadroid.gui.MenuActivity;
 import es.ugr.swad.swadroid.gui.WebViewFactory;
@ -152,8 +151,6 @@ public class TestsMake extends MenuActivity {
        numberPicker.setMinValue(test.getMin());
        numberPicker.setValue(test.getDef());
        numberPicker.setVisibility(View.VISIBLE);
-
-        SWADroidTracker.sendScreenView(getApplicationContext(), TAG + " NumQuestions");
    }

    /**
@ -214,8 +211,6 @@ public class TestsMake extends MenuActivity {
        checkBoxesList.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
        checkBoxesList.setOnItemClickListener(tagsAnswersTypeItemClickListener);
        checkBoxesList.setDividerHeight(0);
-
-        SWADroidTracker.sendScreenView(getApplicationContext(), TAG + " Tags");
    }

    /**
@ -275,8 +270,6 @@ public class TestsMake extends MenuActivity {
        checkBoxesList.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
        checkBoxesList.setOnItemClickListener(tagsAnswersTypeItemClickListener);
        checkBoxesList.setDividerHeight(0);
-
-        SWADroidTracker.sendScreenView(getApplicationContext(), TAG + " AnswerTypes");
    }

    /**
@ -632,8 +625,6 @@ public class TestsMake extends MenuActivity {
        });

        showQuestion(0);
-
-        SWADroidTracker.sendScreenView(getApplicationContext(), TAG + " Question");
    }

    /**
@ -658,8 +649,6 @@ public class TestsMake extends MenuActivity {
            //Shows the test
            showTest();
        } else {
-            SWADroidTracker.sendScreenView(getApplicationContext(), TAG + " No questions criteria");
-
            Toast.makeText(this, R.string.testNoQuestionsMeetsSpecifiedCriteriaMsg, Toast.LENGTH_LONG).show();
            finish();
        }
@ -701,8 +690,6 @@ public class TestsMake extends MenuActivity {
        } else {
            textView = (TextView) findViewById(R.id.testResultsText);
            textView.setText(R.string.testNoResultsMsg);
-
-            SWADroidTracker.sendScreenView(getApplicationContext(), TAG + " Feedback " + Test.FEEDBACK_NONE);
        }
    }

@ -794,8 +781,6 @@ public class TestsMake extends MenuActivity {
            if (test != null) {
                selectNumQuestions();
            } else {
-                SWADroidTracker.sendScreenView(getApplicationContext(), TAG + " No questions");
-
                Toast.makeText(this, R.string.testNoQuestionsCourseMsg, Toast.LENGTH_LONG).show();
                finish();
            }
@ -845,7 +830,6 @@ public class TestsMake extends MenuActivity {
                return true;
            case R.id.action_show_details:
            	if (test.getFeedback().equals(Test.FEEDBACK_MIN)) {
-                    SWADroidTracker.sendScreenView(getApplicationContext(), TAG + " Feedback " + Test.FEEDBACK_MIN);
                    Toast.makeText(this, R.string.testNoDetailsMsg, Toast.LENGTH_LONG).show();
                } else {            	
 	            	//Show totals button only
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/preferences/Preferences.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/preferences/Preferences.java
@ -32,7 +32,6 @@ import java.security.NoSuchAlgorithmException;
 import java.util.List;

 import es.ugr.swad.swadroid.Constants;
-import es.ugr.swad.swadroid.analytics.SWADroidTracker;
 import es.ugr.swad.swadroid.database.DataBaseHelper;
 import es.ugr.swad.swadroid.model.LoginInfo;
 import es.ugr.swad.swadroid.modules.courses.Courses;
@ -186,7 +185,6 @@ public class Preferences {
 	            dbHelper = new DataBaseHelper(ctx);
 	        } catch (Exception e) {
 	            Log.e(TAG, e.getMessage());
-                SWADroidTracker.sendException(ctx, e, false);
 	        }
    	}
 	}
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/preferences/PreferencesActivity.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/preferences/PreferencesActivity.java
@ -24,7 +24,7 @@ import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.pm.ApplicationInfo;
-import android.content.pm.PackageManager.NameNotFoundException;
+import android.content.pm.PackageManager;
 import android.net.Uri;
 import android.os.Bundle;
 import android.preference.CheckBoxPreference;
@ -33,12 +33,11 @@ import android.preference.Preference.OnPreferenceChangeListener;
 import android.preference.Preference.OnPreferenceClickListener;
 import android.preference.PreferenceActivity;
 import android.preference.PreferenceScreen;
-import android.provider.Settings;
 import android.util.Log;
-import android.view.View;
-import android.widget.Button;
 import android.widget.Toast;

+import com.google.firebase.analytics.FirebaseAnalytics;
+
 import java.security.NoSuchAlgorithmException;
 import java.util.Arrays;
 import java.util.Date;
@ -46,13 +45,11 @@ import java.util.List;

 import es.ugr.swad.swadroid.Constants;
 import es.ugr.swad.swadroid.R;
-import es.ugr.swad.swadroid.analytics.SWADroidTracker;
 import es.ugr.swad.swadroid.gui.DialogFactory;
 import es.ugr.swad.swadroid.modules.login.Login;
 import es.ugr.swad.swadroid.modules.login.LoginActivity;
 import es.ugr.swad.swadroid.sync.SyncUtils;
 import es.ugr.swad.swadroid.utils.Crypto;
-import es.ugr.swad.swadroid.utils.NotificationUtils;
 import es.ugr.swad.swadroid.utils.Utils;

 /**
@ -65,6 +62,10 @@ public class PreferencesActivity extends PreferenceActivity implements OnPrefere
     * PreferencesActivity tag name for Logcat
     */
    private static final String TAG = Constants.APP_TAG + " PreferencesActivity";
+    /**
+     * Obtain Firebase Analytics instance
+     */
+    protected FirebaseAnalytics mFirebaseAnalytics = FirebaseAnalytics.getInstance(this);
    /**
     * Application context
     */
@ -130,11 +131,6 @@ public class PreferencesActivity extends PreferenceActivity implements OnPrefere
     * Synchronization preferences changed flag
     */
    private boolean syncPrefsChanged = false;
-
-    /**
-     * SWAD server to use
-     */
-    //private String mServer;
    
    /**
     * User password preference changed flag
@ -146,14 +142,14 @@ public class PreferencesActivity extends PreferenceActivity implements OnPrefere
     *
     * @param message Error message to show.
     */
-    private void error(String message, Exception ex, boolean sendException) {
+    private void error(String message, Exception ex) {
    	DialogInterface.OnClickListener onClickListener = new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int id) {
                finish();
            }
        };
        
-    	AlertDialog errorDialog = DialogFactory.createErrorDialog(this, TAG, message, ex, sendException,
+    	AlertDialog errorDialog = DialogFactory.createErrorDialog(this, TAG, message, ex,
    			isDebuggable, onClickListener); 
    	
    	errorDialog.show();
@ -178,7 +174,7 @@ public class PreferencesActivity extends PreferenceActivity implements OnPrefere
                    getPackageName(), 0);
    		isDebuggable = (ApplicationInfo.FLAG_DEBUGGABLE != 0);
        } catch (Exception ex) {
-        	error(ex.getMessage(), ex, true);
+        	error(ex.getMessage(), ex);
        }

        logOutPref = findPreference(Preferences.LOGOUTPREF);
@ -304,6 +300,12 @@ public class PreferencesActivity extends PreferenceActivity implements OnPrefere
                sharingIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, getString(R.string.app_name));
                sharingIntent.putExtra(android.content.Intent.EXTRA_TEXT, getString(R.string.shareBodyMsg));
                startActivity(Intent.createChooser(sharingIntent, getString(R.string.shareTitle_menu)));
+
+                Bundle bundle = new Bundle();
+                bundle.putString(FirebaseAnalytics.Param.ITEM_ID, "1");
+                bundle.putString(FirebaseAnalytics.Param.CONTENT_TYPE, "text");
+                mFirebaseAnalytics.logEvent(FirebaseAnalytics.Event.SHARE, bundle);
+
                return true;
            }
        });
@ -319,11 +321,11 @@ public class PreferencesActivity extends PreferenceActivity implements OnPrefere
                return true;
            }
        });
-        
+
        try {
            currentVersionPref.setSummary(getPackageManager().getPackageInfo(getPackageName(), 0).versionName);
-        } catch (NameNotFoundException e) {
-            SWADroidTracker.sendException(getApplicationContext(), e, false);
+        } catch (PackageManager.NameNotFoundException ex) {
+            error(ex.getMessage(), ex);
        }
    }

@ -369,7 +371,7 @@ public class PreferencesActivity extends PreferenceActivity implements OnPrefere
                }
                
 			} catch (NoSuchAlgorithmException ex) {
-				error(ex.getMessage(), ex, true);
+				error(ex.getMessage(), ex);
 			}
        } else if(Preferences.SYNCENABLEPREF.equals(key)) {
        	boolean syncEnabled = (Boolean) newValue;
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/utils/Crypto.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/utils/Crypto.java
@ -21,6 +21,7 @@
 package es.ugr.swad.swadroid.utils;

 import android.content.Context;
+import android.util.Log;

 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
@ -34,7 +35,6 @@ import javax.crypto.spec.PBEKeySpec;
 import javax.crypto.spec.PBEParameterSpec;

 import es.ugr.swad.swadroid.Constants;
-import es.ugr.swad.swadroid.analytics.SWADroidTracker;

 /**
 * Cryptographic class for encryption purposes.
@ -80,8 +80,7 @@ public class Crypto {
            ecipher.init(Cipher.ENCRYPT_MODE, key, paramSpec);
            dcipher.init(Cipher.DECRYPT_MODE, key, paramSpec);
        } catch (Exception e) {
-            //Send exception details to Google Analytics
-            SWADroidTracker.sendException(mContext, e, false);
+            Log.e(TAG, e.getMessage());
        }
    }

@ -99,8 +98,7 @@ public class Crypto {
        } catch (Exception e) {
            rVal = "Error encrypting: " + e.getMessage();

-            //Send exception details to Google Analytics
-            SWADroidTracker.sendException(mContext, e, false);
+            Log.e(TAG, e.getMessage());
        }
        return rVal;
    }
@ -119,8 +117,7 @@ public class Crypto {
        } catch (Exception e) {
            rVal = "Error encrypting: " + e.getMessage();

-            //Send exception details to Google Analytics
-            SWADroidTracker.sendException(mContext, e, false);
+            Log.e(TAG, e.getMessage());
        }
        return rVal;
    }
--- a/SWADroid/src/main/java/es/ugr/swad/swadroid/utils/OldCrypto.java
+++ b/SWADroid/src/main/java/es/ugr/swad/swadroid/utils/OldCrypto.java
@ -20,6 +20,7 @@
 package es.ugr.swad.swadroid.utils;

 import android.content.Context;
+import android.util.Log;

 import java.security.MessageDigest;
 import java.security.SecureRandom;
@ -30,7 +31,6 @@ import javax.crypto.SecretKey;
 import javax.crypto.spec.SecretKeySpec;

 import es.ugr.swad.swadroid.Constants;
-import es.ugr.swad.swadroid.analytics.SWADroidTracker;

 /**
 * Cryptographic class for encryption purposes.
@ -49,8 +49,7 @@ public class OldCrypto {
            byte[] result = encrypt(rawKey, cleartext.getBytes("UTF-8"));
            return Base64.encodeBytes(result);
        } catch (Exception e) {
-            //Send exception details to Google Analytics
-            SWADroidTracker.sendException(ctx, e, false);
+            Log.e(TAG, e.getMessage());
        }
        return "error";
    }
@ -62,8 +61,7 @@ public class OldCrypto {
            byte[] result = decrypt(rawKey, enc);
            return new String(result, "UTF-8");
        } catch (Exception e) {
-            //Send exception details to Google Analytics
-            SWADroidTracker.sendException(ctx, e, false);
+            Log.e(TAG, e.getMessage());
        }
        return "error";
    }
@ -107,8 +105,7 @@ public class OldCrypto {
            }
            return hexString.toString();
        } catch (Exception e) {
-            //Send exception details to Google Analytics
-            SWADroidTracker.sendException(ctx, e, false);
+            Log.e(TAG, e.getMessage());
        }
        return "error";
    }
--- a/SWADroid/src/main/res/layout/expandablelist_items_pulltorefresh.xml
+++ b/SWADroid/src/main/res/layout/expandablelist_items_pulltorefresh.xml
@ -9,7 +9,7 @@
        android:id="@+id/courseNameLayout"
        layout="@layout/course_or_group_name" />

-    <android.support.v4.widget.SwipeRefreshLayout
+    <androidx.swiperefreshlayout.widget.SwipeRefreshLayout
        android:id="@+id/swipe_container_expandablelist"
        android:layout_width="match_parent"
        android:layout_height="match_parent" >
@ -30,6 +30,6 @@
                android:layout_height="match_parent"
                android:cacheColorHint="@color/background" />
        </LinearLayout>
-    </android.support.v4.widget.SwipeRefreshLayout>
+    </androidx.swiperefreshlayout.widget.SwipeRefreshLayout>

 </LinearLayout>
--- a/SWADroid/src/main/res/layout/list_items_pulltorefresh.xml
+++ b/SWADroid/src/main/res/layout/list_items_pulltorefresh.xml
@ -7,7 +7,7 @@

    <include layout="@layout/progress_screen" />

-    <android.support.v4.widget.SwipeRefreshLayout
+    <androidx.swiperefreshlayout.widget.SwipeRefreshLayout
        android:id="@+id/swipe_container_list"
        android:layout_width="match_parent"
        android:layout_height="match_parent" >
@ -29,6 +29,6 @@
                android:cacheColorHint="@color/background" >
            </ListView>
        </LinearLayout>
-    </android.support.v4.widget.SwipeRefreshLayout>
+    </androidx.swiperefreshlayout.widget.SwipeRefreshLayout>

 </LinearLayout>
--- a/SWADroid/src/main/res/menu/search_users_bar.xml
+++ b/SWADroid/src/main/res/menu/search_users_bar.xml
@ -6,7 +6,7 @@
        android:id="@+id/action_search_field"
        android:icon="@drawable/ic_search_user"
        swadroid:showAsAction="ifRoom|collapseActionView"
-        swadroid:actionViewClass="android.support.v7.widget.SearchView"
+        swadroid:actionViewClass="androidx.appcompat.widget.SearchView"
        android:title="@string/search" />

    <item
--- a/SWADroid/src/main/res/raw-es/changes.html
+++ b/SWADroid/src/main/res/raw-es/changes.html
@ -14,6 +14,26 @@
    </style>
 </head>

+<body bgcolor="white">
+<h4>1.5.6 (2019-11-05)</h4>
+<ul>
+    <li type="disc"><strong>Pasar lista:</strong> Corregida ejecución simultánea de varios envíos de la lista de asistencia</li>
+</ul>
+
+<body bgcolor="white">
+<h4>1.5.5 (2019-07-08)</h4>
+<ul>
+    <li type="disc">Añadido soporte para Android-Q</li>
+    <li type="disc">Corregidas erratas en el historial de cambios</li>
+</ul>
+
+<body bgcolor="white">
+<h4>1.5.4 (2018-02-25)</h4>
+<ul>
+    <lh class="fix">[CORRECCIONES]</lh>
+    <li type="disc"><strong>Grupos:</strong> Corregida visualización del nombre de los grupos de selección única</li>
+</ul>
+
 <body bgcolor="white">
 <h4>1.5.3 (2017-10-25)</h4>
 <ul>
@ -39,27 +59,27 @@
 <h4>1.5.0 (2016-09-01)</h4>
 <ul>
    <lh class="new">[NOVEDADES]</lh>
-    <li type="disc"><strong>Mensajes&#58;</strong> A&ntilde;adida b&uacute;squeda de destinatarios</li>
+    <li type="disc"><strong>Mensajes:</strong> A&ntilde;adida b&uacute;squeda de destinatarios</li>
 </ul>
 <h4>1.4.0 (2016-07-25)</h4>
 <ul>
    <lh class="new">[NOVEDADES]</lh>
-    <li type="disc"><strong>Men&uacute; principal&#58;</strong> A&ntilde;adido men&uacute; para
+    <li type="disc"><strong>Men&uacute; principal:</strong> A&ntilde;adido men&uacute; para
                            usuarios que no tienen ninguna asignatura</li>
 </ul>
 <ul>
    <lh class="fix">[CORRECCIONES]</lh>
-    <li type="disc"><strong>Calificaciones&#58;</strong> Corregida consulta de calificaciones desde el rol estudiante</li>
+    <li type="disc"><strong>Calificaciones:</strong> Corregida consulta de calificaciones desde el rol estudiante</li>
 </ul>
 <h4>1.3.4 (2016-07-17)</h4>
 <ul>
    <lh class="update">[ACTUALIZACIONES]</lh>
-    <li type="disc"><strong>Login&#58;</strong> Ahora es obligatorio seleccionar el servidor correcto</li>
-    <li type="disc"><strong>Pasar lista&#58;</strong> Ahora se pueden escanear c&oacute;digos en cualquier orientaci&oacute;n
+    <li type="disc"><strong>Login:</strong> Ahora es obligatorio seleccionar el servidor correcto</li>
+    <li type="disc"><strong>Pasar lista:</strong> Ahora se pueden escanear c&oacute;digos en cualquier orientaci&oacute;n
                    del dispositivo</li>
-    <li type="disc"><strong>Calificaciones&#58;</strong> Ahora se muestra un aviso si el ID (DNI&#47;C&eacute;dula) del estudiante
+    <li type="disc"><strong>Calificaciones:</strong> Ahora se muestra un aviso si el ID (DNI-C&eacute;dula) del estudiante
                    no ha sido verificado por el profesor o si no existen calificaciones disponibles</li>
-    <li type="disc"><strong>Interfaz&#58;</strong> Mejoras menores</li>
+    <li type="disc"><strong>Interfaz:</strong> Mejoras menores</li>
 </ul>
 <h4>1.3.3 (2016-01-31)</h4>
 <ul>
--- a/SWADroid/src/main/res/raw/changes.html
+++ b/SWADroid/src/main/res/raw/changes.html
@ -14,6 +14,26 @@
    </style>
 </head>

+<body bgcolor="white">
+<h4>1.5.6 (2019-11-05)</h4>
+<ul>
+    <li type="disc"><strong>Rollcall:</strong> Fixed SWADroid allows multiple simultaneous submissions of the attendance list</li>
+</ul>
+
+<body bgcolor="white">
+<h4>1.5.5 (2019-07-08)</h4>
+<ul>
+    <li type="disc">Added support for Android-Q</li>
+    <li type="disc">Fixed CHANGELOG typos</li>
+</ul>
+
+<body bgcolor="white">
+<h4>1.5.4 (2018-02-25)</h4>
+<ul>
+    <lh class="fix">[FIXES]</lh>
+    <li type="disc"><strong>Groups:</strong> Fixed display of the name of single choice groups</li>
+</ul>
+
 <body bgcolor="white">
 <h4>1.5.3 (2017-10-25)</h4>
 <ul>
@ -39,25 +59,25 @@
 <h4>1.5.0 (2016-09-01)</h4>
 <ul>
    <lh class="new">[NEW]</lh>
-    <li type="disc"><strong>Messages&#58;</strong> Added search of recipients</li>
+    <li type="disc"><strong>Messages:</strong> Added search of recipients</li>
 </ul>
 <h4>1.4.0 (2016-07-25)</h4>
 <ul>
    <lh class="new">[NEW]</lh>
-    <li type="disc"><strong>Main menu&#58;</strong> Added menu for users who have no course</li>
+    <li type="disc"><strong>Main menu:</strong> Added menu for users who have no course</li>
 </ul>
 <ul>
    <lh class="fix">[FIXES]</lh>
-    <li type="disc"><strong>Marks&#58;</strong> Fixed consultation of marks from the student role</li>
+    <li type="disc"><strong>Marks:</strong> Fixed consultation of marks from the student role</li>
 </ul>
 <h4>1.3.4 (2016-07-17)</h4>
 <ul>
    <lh class="update">[UPDATES]</lh>
-    <li type="disc"><strong>Login&#58;</strong> Now it is mandatory to select a server</li>
-    <li type="disc"><strong>Rollcall&#58;</strong> Now you can scan codes in any orientation of the device</li>
-    <li type="disc"><strong>Marks&#58;</strong> Now a warning is showed if the student ID has not yet been verified
+    <li type="disc"><strong>Login:</strong> Now it is mandatory to select a server</li>
+    <li type="disc"><strong>Rollcall:</strong> Now you can scan codes in any orientation of the device</li>
+    <li type="disc"><strong>Marks:</strong> Now a warning is showed if the student ID has not yet been verified
                    by the teacher or there are no marks currently available</li>
-    <li type="disc"><strong>UI&#58;</strong> Minor improvements</li>
+    <li type="disc"><strong>UI:</strong> Minor improvements</li>
 </ul>
 <h4>1.3.3 (2016-01-31)</h4>
 <ul>
--- a/SWADroid/src/prod/google-services.json.enc
+++ b/SWADroid/src/prod/google-services.json.enc
--- a/build.gradle
+++ b/build.gradle
@ -5,8 +5,9 @@ buildscript {
        google()
    }
    dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.1'
-        classpath 'org.ajoberstar:grgit:1.8.0'
+        classpath 'com.android.tools.build:gradle:3.5.2'
+        classpath 'org.ajoberstar:grgit:2.1.1'
+        classpath 'com.google.gms:google-services:4.3.2'
    }
 }

--- a/gradle.properties
+++ b/gradle.properties
@ -11,6 +11,8 @@
 # The setting is particularly useful for tweaking memory settings.
 # Default value: -Xmx10248m -XX:MaxPermSize=256m
 # org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
+android.enableJetifier=true
+android.useAndroidX=true
 org.gradle.jvmargs=-Xmx2560M

 # When configured, Gradle will run in incubating parallel mode.
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@ -1,6 +1,6 @@
-#Wed Oct 25 20:37:21 CEST 2017
+#Tue Aug 20 19:44:44 CEST 2019
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.3-all.zip
--- a/keystore.jks.enc
+++ b/keystore.jks.enc
Author	SHA1	Message	Date
Amab	0fc0c9e42e	Merge branch 'release/1.5.6'	2019-11-05 21:02:32 +01:00
Amab	a53efc52bc	Updated CHANGELOG	2019-11-05 21:02:16 +01:00
Juan Miguel Boyero Corral	cfdbecb0aa	Rollcall: Fixed SWADroid allows multiple simultaneous submissions of the attendance list (#263 ) * Fix #262 * Updated CHANGELOG * Rollcall: Fixed The default image is not displayed if the user does not have a photo	2019-11-05 20:53:15 +01:00
Juan Miguel Boyero Corral	0126888e10	Update gradle version (#261 )	2019-11-04 19:57:17 +01:00
Juan Miguel Boyero Corral	b0e6017169	Update README.md	2019-10-26 18:41:27 +02:00
Amab	a48ce0df57	Added codecov token	2019-10-26 18:33:16 +02:00
Juan Miguel Boyero Corral	f8b0d99011	Update README.md	2019-10-26 18:13:48 +02:00
dependabot-preview[bot]	c365299c18	Bump firebase-core from 17.2.0 to 17.2.1 (#260 ) Bumps firebase-core from 17.2.0 to 17.2.1. Signed-off-by: dependabot-preview[bot] <support@dependabot.com>	2019-10-26 18:09:40 +02:00
dependabot-preview[bot]	15587d7717	Bump zxing-android-embedded from 3.6.0 to 4.0.2 (#259 ) Bumps zxing-android-embedded from 3.6.0 to 4.0.2. Signed-off-by: dependabot-preview[bot] <support@dependabot.com>	2019-10-26 17:59:45 +02:00
Amab	4b0fd37702	Merge remote-tracking branch 'origin/develop' into develop	2019-10-26 17:48:05 +02:00
Amab	37901a00c4	Updated minSdkVersion to 24 (Android 7.0)	2019-10-26 17:47:53 +02:00
dependabot-preview[bot]	43e95486f3	Bump gson from 2.8.5 to 2.8.6 (#258 ) Bumps [gson](https://github.com/google/gson) from 2.8.5 to 2.8.6. - [Release notes](https://github.com/google/gson/releases) - [Changelog](https://github.com/google/gson/blob/master/CHANGELOG.md) - [Commits](https://github.com/google/gson/compare/gson-parent-2.8.5...gson-parent-2.8.6) Signed-off-by: dependabot-preview[bot] <support@dependabot.com>	2019-10-26 17:38:46 +02:00
Amab	588afa9b11	Updated dependencies	2019-10-26 17:23:14 +02:00
Juan Miguel Boyero Corral	d927ee059d	Update README.md	2019-10-26 17:16:37 +02:00
Juan Miguel Boyero Corral	fb35c63781	Updated Travis CI references (#252 ) * Updated build dependencies * Updated Travis CI references	2019-07-09 22:21:57 +02:00
Amab	22d1fcd515	Merge tag '1.5.5' into develop 1.5.5	2019-07-08 19:52:15 +02:00
Amab	cdb3b4eab1	Merge branch 'release/1.5.5'	2019-07-08 19:52:04 +02:00
Amab	43ff17b45a	Updated CHANGELOG	2019-07-08 19:51:05 +02:00
Juan Miguel Boyero Corral	a90f540b0f	Fix CHANGELOG typos (#251 )	2019-07-08 19:39:19 +02:00
Juan Miguel Boyero Corral	c98bef5721	Disable CHANGELOG popup on application upgrade (#250 )	2019-07-08 18:44:37 +02:00
Juan Miguel Boyero Corral	27fd02949c	Update Firebase dependency (#249 )	2019-07-08 18:05:57 +02:00
Juan Miguel Boyero Corral	f493255aa0	Migrate to android-Q (#248 )	2019-06-06 20:54:01 +02:00
Juan Miguel Boyero Corral	80552ce4f3	Switch from Google Analytics to Firebase (#247 ) * Switch from Google Analytics to Firebase * Fix google-services.json.enc path * Fix google-services.json.enc path (try 2) * Fix google-services.json.enc path (try 3) * Fix google-services.json.enc path (try 4) * Fix google-services.json.enc path (try 5) * Fix google-services.json.enc path (try 6) * Fix Android Build Tools version * Fix BuildConfigField SWAD_APP_KEY	2019-05-02 18:38:45 +02:00
Juan Miguel Boyero Corral	4bee25297c	Update dependencies (#246 )	2019-03-31 16:52:39 +02:00
Juan Miguel Boyero Corral	ea01cc5057	Support for Android 9 (#245 ) * Update Android Build Tools and dependencies * Update Android dependencies	2018-09-25 20:14:56 +02:00
Juan Miguel Boyero Corral	2cb2d05c34	Update issue templates (#244 ) * Update issue templates * Remove old issue template * Refactor templates	2018-09-06 19:18:42 +02:00
Juan Miguel Boyero Corral	8d04106149	Update gradle plugin (#243 ) * Update gradle plugin * Remove ignored file	2018-06-08 22:15:59 +02:00
Juan Miguel Boyero Corral	1709868480	Update SDK to final release 28 (#242 ) Update SDK to final release 28	2018-06-07 18:38:35 +02:00
Juan Miguel Boyero Corral	b641f7de4d	Add Slack integration with Travis CI (#241 )	2018-05-18 16:51:24 +02:00
Juan Miguel Boyero Corral	0ac9e32363	Enable APK Autodeploy in Travis CI (#240 ) Enable APK Autodeploy in Travis CI	2018-05-18 00:51:10 +02:00
Juan Miguel Boyero Corral	5da9b7ac24	Update API version to Android P Preview (#239 ) * Upgraded to Android P * Fix Travis CI (Try 1) * Fix Travis CI (Try 2) * Fix Travis CI (Try 3) * Fix Travis CI (Try 4) * Fix Travis CI (Try 5) * Fix Travis CI (Try 6) * Fix Travis CI (Try 7) * Fix Travis CI (Try 8) * Revert Fix Travis CI (Try 8) * Minor change * Add parsing of the lint report in Travis CI * Refactor Gradle config * Add TODO comments	2018-05-16 22:12:42 +02:00
Amab	0859220101	Updated dependencies	2018-05-02 18:32:41 +02:00
Juan Miguel Boyero Corral	61ef72b0c6	Updated README	2018-04-21 22:23:10 +02:00
Juan Miguel Boyero Corral	949c2028d7	Updated issue template	2018-04-18 20:21:05 +02:00
Juan Miguel Boyero Corral	c6eb60efa5	Create ISSUE_TEMPLATE.md	2018-04-18 20:15:49 +02:00
Juan Miguel Boyero Corral	926ea7ed69	Merge pull request #237 from Amab/add-code-of-conduct-1 Create CODE_OF_CONDUCT.md	2018-04-18 16:58:14 +02:00
Juan Miguel Boyero Corral	76e8de86c7	Create CODE_OF_CONDUCT.md	2018-04-18 16:46:37 +02:00
Juan Miguel Boyero Corral	de989a3819	Create PULL_REQUEST_TEMPLATE.md	2018-04-18 16:44:35 +02:00
Juan Miguel Boyero Corral	dc4a6835a7	Create CONTRIBUTING.md	2018-04-18 16:42:12 +02:00
Juan Miguel Boyero Corral	a635003381	Updated dependencies	2018-04-16 17:16:17 +02:00
Juan Miguel Boyero Corral	28328df06d	Updated dependencies	2018-04-03 13:04:42 +02:00
Juan Miguel Boyero Corral	b5d53af477	Merge tag '1.5.4' into develop 1.5.4	2018-02-25 13:32:02 +01:00
Juan Miguel Boyero Corral	69f2c34531	Merge branch 'release/1.5.4'	2018-02-25 13:31:52 +01:00
Juan Miguel Boyero Corral	b1b84cd26d	Bumped version	2018-02-25 13:30:45 +01:00
Juan Miguel Boyero Corral	7ededb89c2	Merge pull request #236 from Cadiducho/groupNameFix Fix #235	2018-02-25 13:19:47 +01:00
Dani Matilla	7412ef3485	Fix behaviour with multiple choices	2018-02-20 13:11:49 +01:00