我正在尝试使用 FragmentPagerAdapter 将 ListFragment 与 ViewPager 一起使用。寻呼机由 ListFragment 的两个实例组成。ViewPager 控件有效并允许我在片段之间滑动,但是两个页面中出现相同的 ListFragment。ViewPager 的 getItem() 方法似乎创建了 ListFragment 的两个不同实例,但它只为两个页面显示它的第二个实例。这是一个代码:
// FragmentPagerAdapter
private static class MyFragmentPagerAdapter extends FragmentPagerAdapter {
public MyFragmentPagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int index) {
Log.i("Page: ", index + "");
return PageFragment.newInstance(pages.get(index));
// pages is an ArrayList<ArrayList<Restaurant>> pages
}
@Override
public int getCount() {
return numberOfPages;
}
}
// ListFragment
public class PageFragment extends ListFragment {
private static ArrayList<Restaurant> restaurantsList;
public static PageFragment newInstance(ArrayList<Restaurant> restaurantsList) {
PageFragment pageFragment = new PageFragment();
pageFragment.setRestaurantsList(restaurantsList);
return pageFragment;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment, container, false);
setListAdapter(new RestaurantArrayAdapter(getActivity().getBaseContext(), getRestaurantsList()) );
return view;
}
private void setRestaurantsList(ArrayList<Restaurant> list)
{
restaurantsList = list;
}
private ArrayList<Restaurant> getRestaurantsList()
{
return this.restaurantsList;
}
}