/***
Copyright (c) 2014 CommonsWare, LLC
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.
Covered in detail in the book _The Busy Coder's Guide to Android Development_
https://commonsware.com/Android
*/
package com.commonsware.android.video.browse;
import android.app.LoaderManager;
import android.content.CursorLoader;
import android.content.Loader;
import android.database.Cursor;
import android.os.Bundle;
import android.provider.MediaStore;
import android.support.v17.leanback.app.BrowseFragment;
import android.support.v17.leanback.widget.ArrayObjectAdapter;
import android.support.v17.leanback.widget.HeaderItem;
import android.support.v17.leanback.widget.ListRow;
import android.support.v17.leanback.widget.ListRowPresenter;
import android.support.v17.leanback.widget.OnItemViewClickedListener;
import android.support.v17.leanback.widget.Presenter;
import android.support.v17.leanback.widget.Row;
import android.support.v17.leanback.widget.RowPresenter;
import android.view.View;
import java.util.ArrayList;
public class VideosFragment extends BrowseFragment
implements OnItemViewClickedListener,
LoaderManager.LoaderCallbacks<Cursor> {
private ArrayList<Video> videos=new ArrayList<Video>();
@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
getLoaderManager().initLoader(0, null, this);
setOnItemViewClickedListener(this);
}
@Override
public void onItemClicked(Presenter.ViewHolder viewHolder,
Object o,
RowPresenter.ViewHolder rowViewHolder,
Row row) {
Video video=(Video)o;
((MainActivity)getActivity()).onVideoSelected(video.uri,
video.mimeType);
}
@Override
public Loader<Cursor> onCreateLoader(int arg0, Bundle arg1) {
return(new CursorLoader(
getActivity(),
MediaStore.Video.Media.EXTERNAL_CONTENT_URI,
null, null, null,
MediaStore.Video.Media.TITLE));
}
@Override
public void onLoadFinished(Loader<Cursor> loader, Cursor c) {
mapCursorToModels(c);
setHeadersState(BrowseFragment.HEADERS_ENABLED);
setTitle(getString(R.string.app_name));
ArrayObjectAdapter rows=new ArrayObjectAdapter(new ListRowPresenter());
ArrayObjectAdapter listRowAdapter=
new ArrayObjectAdapter(new VideoPresenter(getActivity()));
for (Video v : videos) {
listRowAdapter.add(v);
}
HeaderItem header=new HeaderItem(0, "Videos", null);
rows.add(new ListRow(header, listRowAdapter));
setAdapter(rows);
}
@Override
public void onLoaderReset(Loader<Cursor> loader) {
setAdapter(null);
}
private void mapCursorToModels(Cursor c) {
videos.clear();
int idColumn=c.getColumnIndex(MediaStore.Video.Media._ID);
int uriColumn=c.getColumnIndex(MediaStore.Video.Media.DATA);
int mimeTypeColumn=
c.getColumnIndex(MediaStore.Video.Media.MIME_TYPE);
int titleColumn=
c.getColumnIndex(MediaStore.Video.Media.TITLE);
for (c.moveToFirst(); !c.isAfterLast(); c.moveToNext()) {
videos.add(new Video(c.getInt(idColumn),
c.getString(uriColumn),
c.getString(mimeTypeColumn),
c.getString(titleColumn)));
}
c.close();
}
}