onSaveInstanteState and onRestoreInstanceState
when will they be call
Whatever the app has been close or destroy or not by the system,when the use go back, the app, the app should be the same before exit, this two method use on this way.
example:
if we save simething in a arraylist,after,rotate,the arraylist will be come empty,if we want to restore it:
step1
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putParcelableArrayList(MOVIE_KEY,movieArrayList);
}
step2
inonCreate or onRestoreInstanceState
getBack
movieArrayList= (ArrayList<Movie>) savedInstanceState.get(MOVIE_KEY);
