How to check if current user is logged in android

Question

How to check if current user is logged in android. I have an external database, I have successfully connected it to the database. I need to check if the user is logged in or

Answer 1

According to this:

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.
   // ...
}