B4A Library Facebook - Extends FirebaseAuth to support Facebook

This library requires B4A v12.0+

upload_2016-6-15_16-47-39.png


This library together with FirebaseAuth allows users to sign in to your app with a Facebook or Google account.

Start with configuring FirebaseAuth: https://www.b4x.com/android/forum/threads/firebaseauth-authenticate-your-users.67875/
Once it works you can follow these instructions to add support for Facebook.

You should create a facebook app with an Android platform:
SS-2016-06-15_17.06.51.png


Enable Facebook in Firebase console: Auth - Sign In Method:
SS-2016-06-15_17.04.08.png


Add the OAuth redirect URI from Firebase to Facebook Login product:
SS-2016-06-15_17.08.38.png


You will need to follow these instructions to create a hash key from B4A signing key: https://developers.facebook.com/docs/android/getting-started#release-key-hash
The alias in the command should be B4A.

Add the following snippet to the manifest editor and make sure to update facebook_app_id and the client token (https://developers.facebook.com/docs/facebook-login/guides/access-tokens#clienttokens):
B4X:
'************ Facebook Login ****************
CreateResource(values, facebook.xml, <resources>
    <string name="facebook_app_id">111111111111111</string>
   </resources>)
  
 AddApplicationText(<meta-data android:name="com.facebook.sdk.ClientToken" android:value="aaaaaaaaaabbbbbbbe053434346"/>)

AddApplicationText( <activity
            android:name="com.facebook.FacebookActivity"
            android:configChanges="keyboard|keyboardHidden|screenLayout|screenSize|orientation"
           android:theme="@android:style/Theme.Translucent.NoTitleBar" />
          <meta-data android:name="com.facebook.sdk.ApplicationId" android:value="@string/facebook_app_id"/>)
  
AddApplicationText(
    <provider
            android:name="com.facebook.internal.FacebookInitProvider"
            android:authorities="${applicationId}.FacebookInitProvider"
            android:exported="false" />

        <receiver
            android:name="com.facebook.CurrentAccessTokenExpirationBroadcastReceiver"
            android:exported="false" >
            <intent-filter>
                <action android:name="com.facebook.sdk.ACTION_CURRENT_ACCESS_TOKEN_CHANGED" />
            </intent-filter>
        </receiver>
        <receiver
            android:name="com.facebook.AuthenticationTokenManager$CurrentAuthenticationTokenChangedBroadcastReceiver"
            android:exported="false" >
            <intent-filter>
                <action android:name="com.facebook.sdk.ACTION_CURRENT_AUTHENTICATION_TOKEN_CHANGED" />
            </intent-filter>
        </receiver>
       
         <activity
            android:name="com.facebook.FacebookActivity"
            android:configChanges="keyboard|keyboardHidden|screenLayout|screenSize|orientation"
            android:theme="@style/com_facebook_activity_theme" />
        <activity android:name="com.facebook.CustomTabMainActivity" />
        <activity
            android:name="com.facebook.CustomTabActivity"
            android:exported="true"
             >
            <intent-filter>
                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />

                <data
                    android:host="cct.${applicationId}"
                    android:scheme="fbconnect" />
            </intent-filter>
        </activity>
)

'************ Facebook Login (end) **********
Replace the number with your Facebook app id.

The code itself is simple. You need to initialize FacebookSdk in the starter service.
Call SignIn from an Activity to sign in.
Note that the user will sign in automatically after the first time.

Auth_SignedIn event is raised after the user signs in.


Firebase instructions: https://firebase.google.com/docs/auth/android/facebook-login
Facebook instructions: https://developers.facebook.com/docs/facebook-login/android

Note that you need to "make the app public" before other users can log in:

SS-2016-07-05_08.57.05.png



Updates

v2.01 - Adds missing dependencies.
v2.00 - Based on Facebook 14.1.1
v1.04 - Based on Facebook 11.2
v1.02 - Based on Facebook SDK 7.0.0.
v1.01 - Based on Facebook SDK 5.50.

Download link: https://www.b4x.com/android/files/facebook.zip
 

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Last edited:

Abdou1283

Member
Licensed User
V2.00 released. Requires B4A v12.0. Make sure to update the manifest editor code.
An error has occured in the sample project

B4X:
The SDK has not been initialized, make sure to call FacebookSdk.sdkInitialize() first.
 

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Abdou1283

Member
Licensed User
Please post logs and code as text.
Error occured on line 13 in starter service for both
facebook.initialize and facebook.initialize2("fb")


B4X:
Copying updated assets files (5)
*** Service (starter) Create ***
Error occurred on line: 13 (Starter)
The SDK has not been initialized, make sure to call FacebookSdk.sdkInitialize() first.
    at com.facebook.internal.Validate.sdkInitialized(Validate.kt:129)
    at com.facebook.login.LoginManager.<init>(LoginManager.kt:1398)
    at com.facebook.login.LoginManager$Companion.getInstance(LoginManager.kt:1319)
    at com.facebook.login.LoginManager.getInstance(Unknown Source:2)
    at anywheresoftware.b4x.objects.FacebookSdkWrapper.Initialize2(FacebookSdkWrapper.java:91)
    at chouaibi.dev.kids.puzzle.starter._service_create(starter.java:181)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:732)
    at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:348)
    at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:255)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:146)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:193)
    at chouaibi.dev.kids.puzzle.starter.onCreate(starter.java:56)
    at android.app.ActivityThread.handleCreateService(ActivityThread.java:4661)
    at android.app.ActivityThread.access$1700(ActivityThread.java:301)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2196)
    at android.os.Handler.dispatchMessage(Handler.java:106)
    at android.os.Looper.loop(Looper.java:246)
    at android.app.ActivityThread.main(ActivityThread.java:8653)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:602)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1130)
** Service (starter) Start **

this is my manifest
B4X:
AddManifestText(
<uses-sdk android:minSdkVersion="5" android:targetSdkVersion="31"/>
<supports-screens android:largeScreens="true"
    android:normalScreens="true"
    android:smallScreens="true"
    android:anyDensity="true"/>)
SetApplicationAttribute(android:icon, "@drawable/icon")
SetApplicationAttribute(android:label, "$LABEL$")
'End of default text.

CreateResourceFromFile(Macro, FirebaseAnalytics.GooglePlayBase)
CreateResourceFromFile(Macro, FirebaseAnalytics.Firebase)
CreateResourceFromFile(Macro, FirebaseAuth.FirebaseAuth)



'************ Facebook Login ****************
CreateResource(values, facebook.xml, <resources>
    <string name="facebook_app_id">****************</string>
   </resources>)
 
AddApplicationText(
    <provider
            android:name="com.facebook.internal.FacebookInitProvider"
            android:authorities="${applicationId}.FacebookInitProvider"
            android:exported="false" />

        <receiver
            android:name="com.facebook.CurrentAccessTokenExpirationBroadcastReceiver"
            android:exported="false" >
            <intent-filter>
                <action android:name="com.facebook.sdk.ACTION_CURRENT_ACCESS_TOKEN_CHANGED" />
            </intent-filter>
        </receiver>
        <receiver
            android:name="com.facebook.AuthenticationTokenManager$CurrentAuthenticationTokenChangedBroadcastReceiver"
            android:exported="false" >
            <intent-filter>
                <action android:name="com.facebook.sdk.ACTION_CURRENT_AUTHENTICATION_TOKEN_CHANGED" />
            </intent-filter>
        </receiver>
      
         <activity
            android:name="com.facebook.FacebookActivity"
            android:configChanges="keyboard|keyboardHidden|screenLayout|screenSize|orientation"
            android:theme="@style/com_facebook_activity_theme" />
        <activity android:name="com.facebook.CustomTabMainActivity" />
        <activity
            android:name="com.facebook.CustomTabActivity"
            android:exported="true"
             >
            <intent-filter>
                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.BROWSABLE" />

                <data
                    android:host="cct.${applicationId}"
                    android:scheme="fbconnect" />
            </intent-filter>
        </activity>
)

'************ Facebook Login (end) **********
 
Last edited:
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