Android Studio : How to Add An Alert Dialog Box / Pop-Up Notification

Hi, good video!
I need a Pop-up notification for user check if a new version of the app is available.
Can you tell me hou? Thks

Thanks!

thx u

Great video. Thanks ^^

Thanks!!!

everything about this video is great. short, descriptive, and to the point. need more android videos like this.

Thanks mate, needed something like this for my weather app.

Thanks man. Solved my problem in a jiffy.

Cant see even on desktop

Thank you. This was a very good and well made tutorial. Thank you for your help!

hi, how do i resize the alert dialog? this is my code:
public AlertDialog.Builder buildDialog(Context c) {

AlertDialog.Builder builder = new AlertDialog.Builder(c);
builder.setTitle("No Internet Connection");
builder.setMessage("You need to have Mobile Data or wifi to access this. Press ok to Exit");
builder.setPositiveButton("Ok", new DialogInterface.OnClickListener() {

@Override
public void onClick(DialogInterface dialog, int which) {

finish();
}
});

return builder;
}