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/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.photos;
import android.app.Fragment;
import android.app.LoaderManager.LoaderCallbacks;
import android.content.Loader;
import android.database.Cursor;
import android.os.Bundle;
import android.provider.MediaStore.Files.FileColumns;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.CursorAdapter;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import com.android.gallery3d.R;
import com.android.photos.data.PhotoSetLoader;
public class PhotoSetFragment extends Fragment implements LoaderCallbacks<Cursor> {
private static final int LOADER_PHOTOSET = 1;
private ListView mPhotoSetView;
private View mEmptyView;
private CursorAdapter mAdapter;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View root = inflater.inflate(R.layout.photo_set, container, false);
mPhotoSetView = (ListView) root.findViewById(android.R.id.list);
mEmptyView = root.findViewById(android.R.id.empty);
mEmptyView.setVisibility(View.GONE);
mAdapter = new SimpleCursorAdapter(getActivity(),
android.R.layout.simple_list_item_1, null,
new String[] { FileColumns.DATA },
new int[] { android.R.id.text1 }, 0);
mPhotoSetView.setAdapter(mAdapter);
getLoaderManager().initLoader(LOADER_PHOTOSET, null, this);
updateEmptyStatus();
return root;
}
private void updateEmptyStatus() {
boolean empty = (mAdapter == null || mAdapter.getCount() == 0);
mPhotoSetView.setVisibility(empty ? View.GONE : View.VISIBLE);
mEmptyView.setVisibility(empty ? View.VISIBLE : View.GONE);
}
@Override
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
return new PhotoSetLoader(getActivity());
}
@Override
public void onLoadFinished(Loader<Cursor> loader,
Cursor data) {
mAdapter.swapCursor(data);
updateEmptyStatus();
}
@Override
public void onLoaderReset(Loader<Cursor> loader) {
}
}
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