On launch, you will see the Google Sign-In button. Click the button to sign in with your Google account. Once signed in, you will see your profile information displayed. Click the logout button to ...

We recommend you to using show special when you want use some button. show help you importing part of library.

Android may be one of the most popular operating systems in the world, but it’s far from the only mobile operating system. If your app is going to reach the widest possible audience, then you ...