Google Sign In Not Working When Built In My Android Studio

A third-party has developed the main structure for my app, including a Google Sign In. When they test it, it works. When I run the APK that they built, it works. When I build using

Solution 1:

Yes...You guessed it right.Its about SHA-1 Key.

You need to add you SHA-1 key generated from your PC keystore

How to get SHA-1 from Android Studio ?

Than add that key in your Firebase console or in Google Console

How to add SHA-1 key to console ?

Solution 2:

First thing we need SHA-1 key for integrate google sign in we need to register this key in google developer or google api console, As per my or other experiance SHA-1 key will change when you change your systm so you need to replace your SHA-1 key with latest from your systme.

Solution 3:

You need to Generate Your SHA-1 Release Key for Gmail Login After Build Apk

Follow step

1.Open CMD terminal

Goto Java folder using 1. cd java 2. cd jdk1.8.0_112 3. cd bin

C:\Program Files\Java\jdk1.8.0_112\bin>

Enter Following Command:

keytool -list -v -keystore "PATH OF .jks Keystore" -alias android

Note: android is my Keystore Alias

then you will get this : Enter keystore password(Enter your keystore password)

Solution 4:

Just update your sha-1 to firebase and goo to tools->Firebase->Authentication->click Connect to firebase.It worked for me;)

Get your sha from Gradle->app->task->android->click Signing report copy the sha1 past to firebase project settings bottom.