moueza/openclassrooms-5086986-create-a-scalable-and-powerful-backend-for-android-using-firebase-in-java

openclassrooms-5086986-create-a-scalable-and-powerful-backend-for-android-using-firebase-in-java

Me before :

-1) https://gitlab.com/moueza/openclassrooms-3499366-developpez-une-application-pour-android-openclassroomsAndroidCours5

+0) = 8) https://github.com/moueza/openclassrooms-4517166-developpez-votre-premiere-application-android

Sources : https://github.com/PhilippeBoisney/OpenClassrooms---Parcours-Android :

+1) = 7) https://github.com/moueza/openclassrooms-4568596-construisez-une-interface-utilisateur-flexible-et-adaptative

+2) = 6) https://openclassrooms.com/fr/courses/4568576-recuperez-et-affichez-des-donnees-distantes

+3) ici https://openclassrooms.com/fr/courses/4872916-creez-un-backend-scalable-et-performant-sur-firebase

+4) https://openclassrooms.com/fr/courses/4568746-gerez-vos-donnees-localement-pour-avoir-une-application-100-hors-ligne

+5) https://openclassrooms.com/fr/courses/4568621-personnalisez-vos-applications

Pre-requisites :

+6) = 2) https://openclassrooms.com/fr/courses/4788266-integrate-remote-data-into-your-app

+7) = 1) https://openclassrooms.com/fr/courses/5759911-create-a-flexible-and-adaptive-user-interface-in-android-with-java

+8) = 0) https://openclassrooms.com/fr/courses/4661936-develop-your-first-android-application

openclassrooms-5086986-create-a-scalable-and-powerful-backend-for-android-using-firebase-in-java's Issues

Emu Nexus 6 API 26

p1c4 Improve your authentication system with social media

Same version

All com.android.support libraries must use the exact same version specification (mixing versions can lead to runtime crashes). Found versions 27.1.1, 25.2.0. Examples include com.android.support:animated-vector-drawable:27.1.1 and com.android.support:support-media-compat:25.2.0

https://www.google.com/search?q=All+com.android.support+libraries+must+use+the+exact+same+version+specification+(mixing+versions+can+lead+to+runtime+crashes).+Found+versions+27.1.1%2C+25.2.0.+Examples+include+com.android.support%3Aanimated-vector-drawable%3A27.1.1+and+com.android.support%3Asupport-media-compat%3A25.2.0&oq=All+com.android.support+libraries+must+use+the+exact+same+version+specification+(mixing+versions+can+lead+to+runtime+crashes).+Found+versions+27.1.1%2C+25.2.0.+Examples+include+com.android.support%3Aanimated-vector-drawable%3A27.1.1+and+com.android.support%3Asupport-media-compat%3A25.2.0&aqs=chrome..69i57.979j0j7&sourceid=chrome&ie=UTF-8

Missing JDK

To 1.8

androidx from Gradle properties

p2c1part2 How is the data organized?

p1c5part3 Implement account log-out and deletion

Speed

Executing tasks: [:app:assembleDebug] in project /home/peter/POUB/openclassrooms-5086986-create-a-scalable-and-powerful-backend-for-android-using-firebase-in-java/FirebaseOC

Configure project :app
WARNING: Configuration 'compile' is obsolete and has been replaced with 'implementation' and 'api'.
It will be removed in version 5.0 of the Android Gradle plugin.
For more information, see http://d.android.com/r/tools/update-dependency-configurations.html.
registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)
registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)

Task :app:preBuild UP-TO-DATE
Task :app:preDebugBuild UP-TO-DATE
Task :app:compileDebugAidl NO-SOURCE
Task :app:compileDebugRenderscript NO-SOURCE
Task :app:generateDebugBuildConfig UP-TO-DATE
Task :app:javaPreCompileDebug UP-TO-DATE
Task :app:checkDebugAarMetadata UP-TO-DATE
Task :app:generateDebugResValues UP-TO-DATE
Task :app:generateDebugResources UP-TO-DATE

Task :app:processDebugGoogleServices
Parsing json file: /home/peter/POUB/openclassrooms-5086986-create-a-scalable-and-powerful-backend-for-android-using-firebase-in-java/FirebaseOC/app/google-services.json

Task :app:createDebugCompatibleScreenManifests UP-TO-DATE
Task :app:extractDeepLinksDebug UP-TO-DATE
Task :app:processDebugMainManifest
Task :app:processDebugManifest UP-TO-DATE
Task :app:mergeDebugResources
Task :app:processDebugManifestForPackage UP-TO-DATE
Task :app:processDebugResources

Task :app:compileDebugJavaWithJavac
The following annotation processors are not incremental: compiler-4.3.1.jar (com.github.bumptech.glide:compiler:4.3.1), butterknife-compiler-8.8.1.jar (com.jakewharton:butterknife-compiler:8.8.1).
Make sure all annotation processors are incremental to improve your build speed.

Task :app:compileDebugSources
Task :app:mergeDebugNativeDebugMetadata NO-SOURCE
Task :app:mergeDebugShaders UP-TO-DATE
Task :app:compileDebugShaders NO-SOURCE
Task :app:generateDebugAssets UP-TO-DATE
Task :app:mergeDebugAssets UP-TO-DATE
Task :app:compressDebugAssets UP-TO-DATE
Task :app:processDebugJavaRes NO-SOURCE
Task :app:dexBuilderDebug
Task :app:checkDebugDuplicateClasses
Task :app:mergeDebugJavaResource
Task :app:mergeExtDexDebug
Task :app:mergeDebugJniLibFolders UP-TO-DATE
Task :app:validateSigningDebug UP-TO-DATE
Task :app:mergeDebugNativeLibs
Task :app:stripDebugDebugSymbols NO-SOURCE
Task :app:mergeDexDebug
Task :app:packageDebug
Task :app:assembleDebug

Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/6.6.1/userguide/command_line_interface.html#sec:command_line_warnings

BUILD SUCCESSFUL in 2m 6s
25 actionable tasks: 12 executed, 13 up-to-date

Build Analyzer results available

p1c4part1 Add Google authentication

p2c3 Implement a chat room

p1c6 quizz

• Question 1

What is Firebase?

A platform for creating cross-platform mobile apps

A NoSQL database created by Google

Google's mobile/web platform that facilitates the creation of effective, scalable backends, devoted mainly to mobile apps V

• Question 2
  What is the main goal of Firebase?

To make it easier to create Android mobile apps

To more easily manage notifications in Android, iOS, and even the web.

To spare mobile developers the complexity of creating and maintaining a server architecture, while ensuring total scalability (up to billions of users) and simplicity of use V

-Question 3
How is a new app created in Firebase?

By deploying a Node.js project on Google's Firebase servers

By deploying our Android app on Google's Firebase servers

By simply creating a new project from Firebase's web interface V

-Question 4
What does the file "google-services.json" contain?

Configuration information about our Firebase project V

The login and password so that our Android app can access Firebase

JSON information to enable us to deserialize communications between Firebase and Android

-Question 5
Is the library Firebase-UI mandatory for using Firebase from an Android app?

Yes, otherwise it would be impossible to correctly use Firebase (backwards compatibility issue).

No, but Firebase-UI makes it a lot easier for us to integrate Firebase into an Android app. V

-Question 6
What method enables us to retrieve the user currently connected to our app?

FirebaseAuth.getInstance().getCurrentUser(); V

AuthUI.getInstance().createSignInIntentBuilder()

GetUserConnected();

p1c3part3 Manage the authentication feedback

p1c3part2 Add email authentication

p1c1part1 Introduction

Android resource linking failed

Android resource linking failed
/home/peter/POUB/openclassrooms-5086986-create-a-scalable-and-powerful-backend-for-android-using-firebase-in-java/FirebaseOC/app/build/intermediates/incremental/mergeDebugResources/merged.dir/values/values.xml:2239: AAPT: error: resource android:attr/fontVariationSettings not found.

/home/peter/POUB/openclassrooms-5086986-create-a-scalable-and-powerful-backend-for-android-using-firebase-in-java/FirebaseOC/app/build/intermediates/incremental/mergeDebugResources/merged.dir/values/values.xml:2239: AAPT: error: resource android:attr/ttcIndex not found.

p1c2 Integrate Firebase into an Android app

p2c1part4 How do we make access to our database secure?

rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
//grant only a user access to its own data
match /users/{userId} {
allow read, write: if request.auth.uid == userId;
}
//Allow request from authenticated users
match /chats/{document=**} {
allow read, write: if request.auth != null;
}
}
}

p1c2part2 Integrate Firebase into our Android app

• generate on Android Studio

• find by : keytool -list -v -alias androiddebugkey -keystore ~/.android/debug.keystore

android

Gradle

#https://unix.stackexchange.com/questions/394421/install-specific-previous-version-of-package-using-snap
sudo snap info gradle
sudo snap install gradle --channel=latest/stable --classic

6.1

Emu Nexus 6 API 27

p2c1 Create your first data structure

Gradle packages Dependencies with versions

https://stackoverflow.com/questions/39008887/how-do-i-show-dependencies-tree-in-android-studio

gradle app:dependencies > poubDep.txt

p1c3part1 Install the library FirebaseUI

General

p2c3part2 Implementing the graphical elements of chat

p2c3part1 Implementing the queries needed for chat

Play sound

-https://stackoverflow.com/questions/18459122/play-sound-on-button-click-android/18459352#18459352

-https://developer.android.com/guide/topics/media/mediaplayer

p1c5part2 Retrieve the user's information

styles.xml attribute 'attr/colorPrimary' not found

https://stackoverflow.com/questions/63511989/error-style-attribute-attr-colorprimary-not-found

p1c5part1 Creating the activity ProfileActivity

p2c1part3 How can we implement data on Android?

Dependencies errors

Duplicate class android.arch.lifecycle.AndroidViewModel found in modules extensions-1.0.0-runtime (android.arch.lifecycle:extensions:1.0.0) and viewmodel-1.1.0-runtime (android.arch.lifecycle:viewmodel:1.1.0)
Duplicate class android.arch.lifecycle.LiveData found in modules extensions-1.0.0-runtime (android.arch.lifecycle:extensions:1.0.0) and livedata-core-1.1.0-runtime (android.arch.lifecycle:livedata-core:1.1.0)
Duplicate class android.arch.lifecycle.LiveData$1 found in modules extensions-1.0.0-runtime (android.arch.lifecycle:extensions:1.0.0) and livedata-core-1.1.0-runtime (android.arch.lifecycle:livedata-core:1.1.0)
Duplicate class android.arch.lifecycle.LiveData$LifecycleBoundObserver found in modules extensions-1.0.0-runtime (android.arch.lifecycle:extensions:1.0.0) and livedata-core-1.1.0-runtime (android.arch.lifecycle:livedata-core:1.1.0)
Duplicate class android.arch.lifecycle.MutableLiveData found in modules extensions-1.0.0-runtime (android.arch.lifecycle:extensions:1.0.0) and livedata-core-1.1.0-runtime (android.arch.lifecycle:livedata-core:1.1.0)
Duplicate class android.arch.lifecycle.Observer found in modules extensions-1.0.0-runtime (android.arch.lifecycle:extensions:1.0.0) and livedata-core-1.1.0-runtime (android.arch.lifecycle:livedata-core:1.1.0)
Duplicate class android.arch.lifecycle.ViewModel found in modules extensions-1.0.0-runtime (android.arch.lifecycle:extensions:1.0.0) and viewmodel-1.1.0-runtime (android.arch.lifecycle:viewmodel:1.1.0)
Duplicate class android.arch.lifecycle.ViewModelProvider found in modules extensions-1.0.0-runtime (android.arch.lifecycle:extensions:1.0.0) and viewmodel-1.1.0-runtime (android.arch.lifecycle:viewmodel:1.1.0)
Duplicate class android.arch.lifecycle.ViewModelProvider$Factory found in modules extensions-1.0.0-runtime (android.arch.lifecycle:extensions:1.0.0) and viewmodel-1.1.0-runtime (android.arch.lifecycle:viewmodel:1.1.0)
Duplicate class android.arch.lifecycle.ViewModelProvider$NewInstanceFactory found in modules extensions-1.0.0-runtime (android.arch.lifecycle:extensions:1.0.0) and viewmodel-1.1.0-runtime (android.arch.lifecycle:viewmodel:1.1.0)
Duplicate class android.arch.lifecycle.ViewModelStore found in modules extensions-1.0.0-runtime (android.arch.lifecycle:extensions:1.0.0) and viewmodel-1.1.0-runtime (android.arch.lifecycle:viewmodel:1.1.0)
Duplicate class android.arch.lifecycle.ViewModelStoreOwner found in modules extensions-1.0.0-runtime (android.arch.lifecycle:extensions:1.0.0) and viewmodel-1.1.0-runtime (android.arch.lifecycle:viewmodel:1.1.0)

Go to the documentation to learn how to Fix dependency resolution errors.
https://developer.android.com/studio/build/dependencies#resolution_errors

p2c2part1 Creating queries in Firestore

p2c2 Improve user management with Firestore

p1c1 Discover Firebase

p2c2part2 Implementing Firestore queries in the GUI

p1c3 Create your first authentication system

Firebase-ui duplicate class

Duplicate class android.arch.lifecycle.AndroidViewModel found in modules extensions-1.0.0-runtime (android.arch.lifecycle:extensions:1.0.0) and viewmodel-1.1.0-runtime (android.arch.lifecycle:viewmodel:1.1.0)
Duplicate class android.arch.lifecycle.LiveData found in modules extensions-1.0.0-runtime (android.arch.lifecycle:extensions:1.0.0) and livedata-core-1.1.0-runtime (android.arch.lifecycle:livedata-core:1.1.0)
Duplicate class android.arch.lifecycle.LiveData$1 found in modules extensions-1.0.0-runtime (android.arch.lifecycle:extensions:1.0.0) and livedata-core-1.1.0-runtime (android.arch.lifecycle:livedata-core:1.1.0)
Duplicate class android.arch.lifecycle.LiveData$LifecycleBoundObserver found in modules extensions-1.0.0-runtime (android.arch.lifecycle:extensions:1.0.0) and livedata-core-1.1.0-runtime (android.arch.lifecycle:livedata-core:1.1.0)
Duplicate class android.arch.lifecycle.MutableLiveData found in modules extensions-1.0.0-runtime (android.arch.lifecycle:extensions:1.0.0) and livedata-core-1.1.0-runtime (android.arch.lifecycle:livedata-core:1.1.0)
Duplicate class android.arch.lifecycle.Observer found in modules extensions-1.0.0-runtime (android.arch.lifecycle:extensions:1.0.0) and livedata-core-1.1.0-runtime (android.arch.lifecycle:livedata-core:1.1.0)
Duplicate class android.arch.lifecycle.ViewModel found in modules extensions-1.0.0-runtime (android.arch.lifecycle:extensions:1.0.0) and viewmodel-1.1.0-runtime (android.arch.lifecycle:viewmodel:1.1.0)
Duplicate class android.arch.lifecycle.ViewModelProvider found in modules extensions-1.0.0-runtime (android.arch.lifecycle:extensions:1.0.0) and viewmodel-1.1.0-runtime (android.arch.lifecycle:viewmodel:1.1.0)
Duplicate class android.arch.lifecycle.ViewModelProvider$Factory found in modules extensions-1.0.0-runtime (android.arch.lifecycle:extensions:1.0.0) and viewmodel-1.1.0-runtime (android.arch.lifecycle:viewmodel:1.1.0)
Duplicate class android.arch.lifecycle.ViewModelProvider$NewInstanceFactory found in modules extensions-1.0.0-runtime (android.arch.lifecycle:extensions:1.0.0) and viewmodel-1.1.0-runtime (android.arch.lifecycle:viewmodel:1.1.0)
Duplicate class android.arch.lifecycle.ViewModelStore found in modules extensions-1.0.0-runtime (android.arch.lifecycle:extensions:1.0.0) and viewmodel-1.1.0-runtime (android.arch.lifecycle:viewmodel:1.1.0)
Duplicate class android.arch.lifecycle.ViewModelStoreOwner found in modules extensions-1.0.0-runtime (android.arch.lifecycle:extensions:1.0.0) and viewmodel-1.1.0-runtime (android.arch.lifecycle:viewmodel:1.1.0)
Duplicate class android.support.design.widget.CoordinatorLayout found in modules design-27.0.2-runtime (com.android.support:design:27.0.2) and support-core-ui-27.1.1-runtime (com.android.support:support-core-ui:27.1.1)
Duplicate class android.support.design.widget.CoordinatorLayout$1 found in modules design-27.0.2-runtime (com.android.support:design:27.0.2) and support-core-ui-27.1.1-runtime (com.android.support:support-core-ui:27.1.1)
Duplicate class android.support.design.widget.CoordinatorLayout$Behavior found in modules design-27.0.2-runtime (com.android.support:design:27.0.2) and support-core-ui-27.1.1-runtime (com.android.support:support-core-ui:27.1.1)
Duplicate class android.support.design.widget.CoordinatorLayout$DefaultBehavior found in modules design-27.0.2-runtime (com.android.support:design:27.0.2) and support-core-ui-27.1.1-runtime (com.android.support:support-core-ui:27.1.1)
Duplicate class android.support.design.widget.CoordinatorLayout$DispatchChangeEvent found in modules design-27.0.2-runtime (com.android.support:design:27.0.2) and support-core-ui-27.1.1-runtime (com.android.support:support-core-ui:27.1.1)
Duplicate class android.support.design.widget.CoordinatorLayout$HierarchyChangeListener found in modules design-27.0.2-runtime (com.android.support:design:27.0.2) and support-core-ui-27.1.1-runtime (com.android.support:support-core-ui:27.1.1)
Duplicate class android.support.design.widget.CoordinatorLayout$LayoutParams found in modules design-27.0.2-runtime (com.android.support:design:27.0.2) and support-core-ui-27.1.1-runtime (com.android.support:support-core-ui:27.1.1)
Duplicate class android.support.design.widget.CoordinatorLayout$OnPreDrawListener found in modules design-27.0.2-runtime (com.android.support:design:27.0.2) and support-core-ui-27.1.1-runtime (com.android.support:support-core-ui:27.1.1)
Duplicate class android.support.design.widget.CoordinatorLayout$SavedState found in modules design-27.0.2-runtime (com.android.support:design:27.0.2) and support-core-ui-27.1.1-runtime (com.android.support:support-core-ui:27.1.1)
Duplicate class android.support.design.widget.CoordinatorLayout$SavedState$1 found in modules design-27.0.2-runtime (com.android.support:design:27.0.2) and support-core-ui-27.1.1-runtime (com.android.support:support-core-ui:27.1.1)
Duplicate class android.support.design.widget.CoordinatorLayout$ViewElevationComparator found in modules design-27.0.2-runtime (com.android.support:design:27.0.2) and support-core-ui-27.1.1-runtime (com.android.support:support-core-ui:27.1.1)

Go to the documentation to learn how to Fix dependency resolution errors.

Facebook not reported

in Firebase

p1c1part2 What is Firebase?

Draw

Bug R.string

/home/peter/POUB/openclassrooms-5086986-create-a-scalable-and-powerful-backend-for-android-using-firebase-in-java/FirebaseOC/app/src/main/java/com/openclassrooms/firebaseoc/MainActivity.java:97: error: cannot find symbol
showSnackBar(this.coordinatorLayout, getString(R.string.connection_succeed));
^
symbol: variable connection_succeed
location: class string

p1c1part3 Overview of the app FirebaseOC

design build.gradle androidx conflict

implementation 'com.android.support:design:27.0.2'

Dependencies using groupId com.android.support and androidx.* can not be combined but found IdeMavenCoordinates{myGroupId='com.android.support', myArtifactId='support-core-ui', myVersion='27.0.2', myPacking='aar', myClassifier='null'} and IdeMavenCoordinates{myGroupId='androidx.asynclayoutinflater', myArtifactId='asynclayoutinflater', myVersion='1.0.0', myPacking='aar', myClassifier='null'} incompatible dependencies

p1c4part2 Facebook

p1c5 Implement account management for the user

Unsupported modules detected

Compilation is not supported for following modules: app, FirebaseOC. Unfortunately you can't have non-Gradle Java modules and Android-Gradle modules in one project.

p1c2part1 Create a Firebase project

p2c1part1 Where is the data stored ?

Base Firebase