Passing a List through as a ParcelableArrayList

Question

So hey guys, Im having some trouble with some code. Im implementing parcelables. Basically I have an List of items initiated globally as

private List

        

Answer 1

Sadly Android doesn't "program to the interface". If the List is not an ArrayList then you'll have no choice but to create a new ArrayList. This isn't a big deal and can be done programmatically.

public void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    ArrayList<Movie> toSave = mMovieList instanceof ArrayList ?
        (ArrayList<Movie>)mMovieList : new ArrayList<Movie>(mMovieList);
    outState.putParcelableArrayList(MOVIE_KEY, toSave);
}