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/*
* Copyright (C) 2014 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.example.android.leanback;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.ActivityOptionsCompat;
import android.support.v17.leanback.R;
import android.support.v17.leanback.widget.ArrayObjectAdapter;
import android.support.v17.leanback.widget.HeaderItem;
import android.support.v17.leanback.widget.ImageCardView;
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.OnItemViewSelectedListener;
import android.support.v17.leanback.widget.Presenter;
import android.support.v17.leanback.widget.Row;
import android.support.v17.leanback.widget.RowPresenter;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class RowsFragment extends android.support.v17.leanback.app.RowsFragment {
public static interface OnRowsFirstLineSelectedListener {
void onSelectedFirstRow(boolean firstRow);
}
private static final String TAG = "leanback.RowsFragment";
private static final int NUM_ROWS = 10;
private ArrayObjectAdapter mRowsAdapter;
private OnRowsFirstLineSelectedListener mCallback;
@Override
public void onCreate(Bundle savedInstanceState) {
Log.i(TAG, "onCreate");
super.onCreate(savedInstanceState);
setupRows();
setOnItemViewClickedListener(new ItemViewClickedListener());
setOnItemViewSelectedListener(new OnItemViewSelectedListener() {
@Override
public void onItemSelected(Presenter.ViewHolder itemViewHolder, Object item,
RowPresenter.ViewHolder rowViewHolder, Row row) {
Log.i(TAG, "onItemSelected: " + item + " row " + row);
if (mCallback == null) {
return;
}
if (mRowsAdapter != null && mRowsAdapter.size() > 0 && row != null &&
row != mRowsAdapter.get(0)) {
mCallback.onSelectedFirstRow(false);
} else {
mCallback.onSelectedFirstRow(true);
}
}
});
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
// This makes sure that the container activity has implemented
if (activity instanceof OnRowsFirstLineSelectedListener) {
mCallback = (OnRowsFirstLineSelectedListener) activity;
}
}
private void setupRows() {
ListRowPresenter lrp = new ListRowPresenter();
lrp.setRowHeight(CardPresenter.getRowHeight(getActivity()));
lrp.setExpandedRowHeight(CardPresenter.getExpandedRowHeight(getActivity()));
mRowsAdapter = new ArrayObjectAdapter(lrp);
// For good performance, it's important to use a single instance of
// a card presenter for all rows using that presenter.
final CardPresenter cardPresenter = new CardPresenter();
for (int i = 0; i < NUM_ROWS; ++i) {
ArrayObjectAdapter listRowAdapter = new ArrayObjectAdapter(cardPresenter);
listRowAdapter.add(new PhotoItem("Hello world", R.drawable.gallery_photo_1));
listRowAdapter.add(new PhotoItem("This is a test", R.drawable.gallery_photo_2));
listRowAdapter.add(new PhotoItem("Android TV", R.drawable.gallery_photo_3));
listRowAdapter.add(new PhotoItem("Leanback", R.drawable.gallery_photo_4));
listRowAdapter.add(new PhotoItem("Hello world", R.drawable.gallery_photo_5));
listRowAdapter.add(new PhotoItem("This is a test", R.drawable.gallery_photo_6));
listRowAdapter.add(new PhotoItem("Android TV", R.drawable.gallery_photo_7));
listRowAdapter.add(new PhotoItem("Leanback", R.drawable.gallery_photo_8));
HeaderItem header = new HeaderItem(i, "Row " + i);
mRowsAdapter.add(new ListRow(header, listRowAdapter));
}
setAdapter(mRowsAdapter);
}
private final class ItemViewClickedListener implements OnItemViewClickedListener {
@Override
public void onItemClicked(Presenter.ViewHolder itemViewHolder, Object item,
RowPresenter.ViewHolder rowViewHolder, Row row) {
Intent intent = new Intent(getActivity(), DetailsActivity.class);
intent.putExtra(DetailsActivity.EXTRA_ITEM, (PhotoItem) item);
Bundle bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(
getActivity(),
((ImageCardView)itemViewHolder.view).getMainImageView(),
DetailsActivity.SHARED_ELEMENT_NAME).toBundle();
getActivity().startActivity(intent, bundle);
}
}
}
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