String activityState;
@Override
public void onCreate(Bundle savedInstanceState) {
// call the super class onCreate to complete the creation of activity like
// the view hierarchy
super.onCreate(savedInstanceState);
// recovering the instance state
if (savedInstanceState != null) {
activityState = savedInstanceState.getString(STATE_KEY);
}
setContentView(R.layout.main_activity);
mTextView = (TextView) findViewById(R.id.text_view);
}
//This callback is called only when there is a saved instance previously
saved using
//onSaveInstanceState(). We restore some state in onCreate() while we can
optionally restore
// other state here, possibly usable after onStart() has completed.
// The savedInstanceState Bundle is same as the one used in onCreate().
@Override
public void onRestoreInstanceState(Bundle savedInstanceState) {
mTextView.setText(savedInstanceState.getString(STATE_KEY));
}
// invoked when the activity may be temporarily destroyed, save the instance
//state here
//this method will be called before onstop
@Override
public void onSaveInstanceState(Bundle outState) {
outState.putString(STATE_KEY, activityState);
// call superclass to save any view hierarchy
super.onSaveInstanceState(outState);
}