How to refresh a fragment?

Question

I have a PhotosFragment class which extends Fragment. In that class I have a gridview of images. When I delete image it will delete successfully, but the fragment couldn't refresh. So how to refresh the fragment ?

gridView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {

            @Override
            public boolean onItemLongClick(AdapterView<?> arg0, View arg1,
                    int position, long id) {
                imageId = imageArry.get(position).getID();
                deletePhoto(imageId);
                return true;
            }
        });

// method to deletePhoto

   protected void deletePhoto(int id) {

    final int t_id = id;
     AlertDialog.Builder alert = new AlertDialog.Builder(getActivity());
     alert.setTitle("Delete");
     alert.setMessage("Do you want to delete this image ?");

        alert.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {

                db.deleteContact(new Contact(t_id));
                //HERE I want to REFRESH THE FRAGMENT
                }
        });

        alert.setNegativeButton("No", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {

                dialog.dismiss();
            }
        });

        alert.show();

    }

Thanks in advance.

http://stackoverflow.com/questions/20702333/refresh-fragment-at-reload — Shailendra Madda, Jul 16 '14 at 13:34
using 'gridView.setOnItemLongClickListener' I delete the image — Sailendra, Jul 16 '14 at 13:35
'Fragment frg = null; frg = getSupportFragmentManager().findFragmentByTag("Your_Fragment_TAG"); final FragmentTransaction ft = getSupportFragmentManager().beginTransaction(); ft.detach(frg); ft.attach(frg); ft.commit();' — Radhey, Jul 16 '14 at 13:35

score 1 · Accepted Answer · answered Jul 16 '14 at 13:52

1

You need to call notifyDataSetChanged method from the adapter of the GridView to see the changes

answered Jul 16 '14 at 13:52

Omar Albelbaisy

827
8
15

score 0 · Answer 2 · answered Jul 16 '14 at 13:43

0

Try to invalidate your layout View

rootView.findViewById(R.id.your_layout_id).invalidate();

answered Jul 16 '14 at 13:43

Harald Hoerwick

132
1
1
8

score 0 · Answer 3 · answered Jul 16 '14 at 13:48

I don't think you should refresh all fragment. You can either do something like this imageView.setVisibility(View.GONE) or, better, remove item from your gridView's adapter:

adapter.remove(object);
adapter.notifyDataSetChanged();

For more, I suggest refer to official documentation

How to refresh a fragment?

3 Answers3