I am looking for a way to check if my user already signed in with Google Sign In.
I support several logging APIs (Facebook, Google, custom), so I would like to build a s
Take a look at the Android sign-in documentation:
To check if the user is signed-in, call isConnected():
if (mGoogleApiClient != null && mGoogleApiClient.isConnected()) {
// signed in. Show the "sign out" button and explanation.
// ...
} else {
// not signed in. Show the "sign in" button and explanation.
// ...
}