fragment_save_state_example.java

//In Fragment    

    @Override
    public void onCreate( @Nullable Bundle savedInstanceState ){
        super.onCreate( savedInstanceState );

        ...

        if( savedInstanceState != null ){
            onRestoreInstanceState( savedInstanceState ); // Restore Instance State here
        }
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        Bundle saveBundle = new Bundle();
        // Save Instance State here

        outState.putBundle( BUNDLE_SAVE_DATA, saveBundle );
    }


    private void onRestoreInstanceState( Bundle savedInstanceSate ){
        Bundle restoreBundle = savedInstanceSate.getBundle( BUNDLE_SAVE_DATA );
        // Restore instance state here
    }