ViewPage Fragment disappear when reload again

Question

The following is layout

test.xml

Answer 1

In your Fragment class, in the onCreate() method, you have to call setRetainInstance(true) like this:

@Override
public void onCreate(Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);     
    setRetainInstance(true);
}

This tells the FragmentManager to keep your fragments on reloads. In addition, check your manifest file doesn't have any

android:screenOrientation

config changes where you are basically saying you will handle reloads due to config changes yourself.