Simple cross platform plugin of Firebase basic implementation like Analytics, Authentication, Crashlytics & Push Notifications for Xamarin Forms project.
Android & iOS platform support for now.
- Add firebase
google-service.json&GoogleService-Info.plistin your respective project - Add FirebaseEssentials solution folder in your project
- Add latest package of Xamarin.GooglePlayServices.Basement in your Android project
- Make sure the build action of
google-service.jsonisGoogleServicesJson& forGoogleService-Info.plistisBundleResource - Add this below line in your Android project's
strings.xmlfile
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="com.google.firebase.crashlytics.mapping_file_id">1.0</string>
</resources>- Follow firebase authentication quickstart for implementing google & facebook authentication
- Setup google & facebook info in your app's manifest & plist
- In your Android project's Application class or in MainActivity's onCreate() method
CrossFirebaseEssentials.Notifications = new FirebasePushNotificationManager();
CrossFirebaseEssentials.Analytics = new FirebaseAnalyticsManager();
CrossFirebaseEssentials.Crashlytics = new FirebaseCrashlyticsManager();
CrossFirebaseEssentials.Authentication = new FirebaseAuthenticationManager();
FirebaseEssentialsManager.Initialize(this);- In your iOS project's AppDelegate class
CrossFirebaseEssentials.Notifications = new FirebasePushNotificationManager();
CrossFirebaseEssentials.Analytics = new FirebaseAnalyticsManager();
CrossFirebaseEssentials.Crashlytics = new FirebaseCrashlyticsManager();
CrossFirebaseEssentials.Authentication = new FirebaseAuthenticationManager();
FirebaseEssentialsManager.Initialize(this);Notifications
- Android: In MainActivity.cs
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
...
LoadApplication(new App());
FirebasePushNotificationManager.ProcessIntent(this, Intent);
}
protected override void OnNewIntent(Intent intent)
{
base.OnNewIntent(intent);
FirebasePushNotificationManager.ProcessIntent(this, intent);
}- iOS: In AppDelegate.cs
public override void RegisteredForRemoteNotifications(UIApplication application, NSData deviceToken)
{
FirebasePushNotificationManager.DidRegisterRemoteNotifications(deviceToken);
}
public override void FailedToRegisterForRemoteNotifications(UIApplication application, NSError error)
{
FirebasePushNotificationManager.RemoteNotificationRegistrationFailed(error);
}
public override void DidReceiveRemoteNotification(UIApplication application, NSDictionary userInfo, Action<UIBackgroundFetchResult> completionHandler)
{
FirebasePushNotificationManager.DidReceiveMessage(userInfo);
Console.WriteLine(userInfo);
completionHandler(UIBackgroundFetchResult.NewData);
}Usage
This is used from CrossGreeks/FirebasePushNotificationPlugin with latest firebase packages & fixes.
Analytics
- To track screen name from your forms project
CrossFirebaseEssentials.Analytics.TrackScreen("screen name");Authentication
- Android: In MainActivity.cs
protected override async void OnActivityResult(int requestCode, Result resultCode, Intent data)
{
base.OnActivityResult(requestCode, resultCode, data);
await FirebaseAuthenticationManager.OnActivityResult(requestCode, resultCode, data);
}- iOS: In AppDelegate.cs
public override bool OpenUrl(UIApplication app, NSUrl url, NSDictionary options)
{
return FirebaseAuthenticationManager.OpenUrl(app, url, options);
}- Initialize google or facebook login in your page's OnAppearing()
CrossFirebaseEssentials.Authentication.Initialize(AuthType.Google, googleClientId);
CrossFirebaseEssentials.Authentication.Initialize(AuthType.Phone)- Then for login/logout, call below method
CrossFirebaseEssentials.Authentication.SignIn(AuthType.Google);
CrossFirebaseEssentials.Authentication.SignOut(AuthType.Google);- To get the status for login, call below action
CrossFirebaseEssentials.Authentication.OnVerification += (sender, args) => {
switch (args.Status) {
case VerificationStatus.Initialized:
break;
case VerificationStatus.Success:
break;
case VerificationStatus.CodeSent:
break;
case VerificationStatus.Failed:
break;
}
};- For phone verification, first call below method after getting phone number
CrossFirebaseEssentials.Authentication.StartVerification(phoneNumber);- Then we need to open the sms verification page on
CodeSentstatus. And after getting sms code
CrossFirebaseEssentials.Authentication.SubmitVerificationCode(smsCode);- In case we need to resend the verification code again
CrossFirebaseEssentials.Authentication.ResendVerificationCode(phoneNumber);- At last, get user info with access token
var user = await CrossFirebaseEssentials.Authentication.GetUser();Crashlytics
- To log exception from your forms project
CrossFirebaseEssentials.Crashlytics.LogException(new Exception("crash"));Usage
This is implemented using the guide here