In this Blog, we are going to have a look at how to use Firebase Auth to Authenticate Users for Your Application.
Lets First have a look at the advantages of using Firebase Authentication:
- Easy Integration for various social platforms like Facebook, Twitter, Google.
- Less piece of Code and Fast implementation.
- High Security.
- Easy monitoring of users.
- Highly customizable.(They provide default UI for every platform).
You can have a detailed explanation for each point from the official documents.
Over here, I have used the default Firebase Auth UI. You can definitely surpass this and use your views.
APPROACH :
- Create a SignIn Button.
- On click of the Button, call startActivityForResult Method (See code)
- Override onActivityResult.
Let’s have a look at the code:
Module Level DEPENDENCIES
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compile 'com.google.firebase:firebase-auth:11.0.1' compile 'com.firebaseui:firebase-ui-auth:1.2.0' <!-- to be added outside the dependenies block --> apply plugin: 'com.google.gms.google-services' |
Project Level DEPENDENCY
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classpath 'com.google.gms:google-services:3.0.0' |
CODE :
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// Request code used for starting activity for result private static final int RC_SIGN_IN = 1008; |
Button and listener:
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signInButton = (Button)findViewById(R.id.my_sign_in_button); signInButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { startActivityForResult(AuthUI .getInstance().createSignInIntentBuilder() .setIsSmartLockEnabled(false) // to stop the default google-account-chooser pop up .setProviders(Arrays.asList( new AuthUI.IdpConfig.Builder(AuthUI.EMAIL_PROVIDER).build(), new AuthUI.IdpConfig.Builder(AuthUI.FACEBOOK_PROVIDER).build(), new AuthUI.IdpConfig.Builder(AuthUI.GOOGLE_PROVIDER).build(), new AuthUI.IdpConfig.Builder(AuthUI.TWITTER_PROVIDER).build() )).build(),RC_SIGN_IN); } }); |
onActivityResult :
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@Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (requestCode == RC_SIGN_IN){ IdpResponse response = IdpResponse.fromResultIntent(data); if (resultCode== RESULT_OK){ //Replace with your own logic. Log.d("TAG", "FireBaseAuthActivity onActivityResult: " +response.getEmail()); } } } |
That’s all.
Also, don’t forget to add google-services.json file and enable Authentication methods you want to use from the firebase console.
NOTE: In order to enable the Authentication methods, all you need to do is:
- Open Firebase console.
- Select Authentication Tab from the Left side Menu.
- Select the Sign-In Method Tab.
- Select the Sign In Methods from the list you want.
- Slide the slider to Right in order to enable the selected Sign-in Method.
And All is set.
This will enable all the SignIn methods you want to include in your Application.
Keep Coding and Keep Sharing 🙂
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