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      1 /*
      2  * Copyright (C) 2014 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
      5  * in compliance with the License. You may obtain a copy of the License at
      6  *
      7  * http://www.apache.org/licenses/LICENSE-2.0
      8  *
      9  * Unless required by applicable law or agreed to in writing, software distributed under the License
     10  * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
     11  * or implied. See the License for the specific language governing permissions and limitations under
     12  * the License.
     13  */
     14 package com.example.android.leanback;
     15 
     16 import android.content.Intent;
     17 import android.os.Bundle;
     18 import android.support.v4.app.ActivityOptionsCompat;
     19 import android.support.v17.leanback.widget.ArrayObjectAdapter;
     20 import android.support.v17.leanback.widget.HeaderItem;
     21 import android.support.v17.leanback.widget.ImageCardView;
     22 import android.support.v17.leanback.widget.ListRow;
     23 import android.support.v17.leanback.widget.ListRowPresenter;
     24 import android.support.v17.leanback.widget.OnItemViewClickedListener;
     25 import android.support.v17.leanback.widget.OnItemViewSelectedListener;
     26 import android.support.v17.leanback.widget.Presenter;
     27 import android.support.v17.leanback.widget.Row;
     28 import android.support.v17.leanback.widget.RowPresenter;
     29 import android.util.Log;
     30 import android.view.View;
     31 import android.view.ViewGroup;
     32 
     33 public class BrowseFragment extends android.support.v17.leanback.app.BrowseFragment {
     34     private static final String TAG = "leanback.BrowseFragment";
     35 
     36     private static final int NUM_ROWS = 10;
     37     private ArrayObjectAdapter mRowsAdapter;
     38 
     39     @Override
     40     public void onCreate(Bundle savedInstanceState) {
     41         Log.i(TAG, "onCreate");
     42         super.onCreate(savedInstanceState);
     43 
     44         setBadgeDrawable(getActivity().getResources().getDrawable(R.drawable.ic_title));
     45         setTitle("Leanback Sample App");
     46         setHeadersState(HEADERS_ENABLED);
     47 
     48         setOnSearchClickedListener(new View.OnClickListener() {
     49             @Override
     50             public void onClick(View view) {
     51                 Intent intent = new Intent(getActivity(), SearchActivity.class);
     52                 startActivity(intent);
     53             }
     54         });
     55 
     56         setupRows();
     57         setOnItemViewClickedListener(new ItemViewClickedListener());
     58         setOnItemViewSelectedListener(new OnItemViewSelectedListener() {
     59             @Override
     60             public void onItemSelected(Presenter.ViewHolder itemViewHolder, Object item,
     61                     RowPresenter.ViewHolder rowViewHolder, Row row) {
     62                 Log.i(TAG, "onItemSelected: " + item + " row " + row);
     63             }
     64         });
     65     }
     66 
     67     private void setupRows() {
     68         ListRowPresenter lrp = new ListRowPresenter();
     69         lrp.setRowHeight(CardPresenter.getRowHeight(getActivity()));
     70         lrp.setExpandedRowHeight(CardPresenter.getExpandedRowHeight(getActivity()));
     71 
     72         mRowsAdapter = new ArrayObjectAdapter(lrp);
     73 
     74         // For good performance, it's important to use a single instance of
     75         // a card presenter for all rows using that presenter.
     76         final CardPresenter cardPresenter = new CardPresenter();
     77 
     78         for (int i = 0; i < NUM_ROWS; ++i) {
     79             ArrayObjectAdapter listRowAdapter = new ArrayObjectAdapter(cardPresenter);
     80             listRowAdapter.add(new PhotoItem("Hello world", R.drawable.gallery_photo_1));
     81             listRowAdapter.add(new PhotoItem("This is a test", R.drawable.gallery_photo_2));
     82             listRowAdapter.add(new PhotoItem("Android TV", R.drawable.gallery_photo_3));
     83             listRowAdapter.add(new PhotoItem("Leanback", R.drawable.gallery_photo_4));
     84             listRowAdapter.add(new PhotoItem("Hello world", R.drawable.gallery_photo_5));
     85             listRowAdapter.add(new PhotoItem("This is a test", R.drawable.gallery_photo_6));
     86             listRowAdapter.add(new PhotoItem("Android TV", R.drawable.gallery_photo_7));
     87             listRowAdapter.add(new PhotoItem("Leanback", R.drawable.gallery_photo_8));
     88             HeaderItem header = new HeaderItem(i, "Row " + i, null);
     89             mRowsAdapter.add(new ListRow(header, listRowAdapter));
     90         }
     91 
     92         setAdapter(mRowsAdapter);
     93     }
     94 
     95     private final class ItemViewClickedListener implements OnItemViewClickedListener {
     96         @Override
     97         public void onItemClicked(Presenter.ViewHolder itemViewHolder, Object item,
     98                 RowPresenter.ViewHolder rowViewHolder, Row row) {
     99             Intent intent = new Intent(getActivity(), DetailsActivity.class);
    100             intent.putExtra(DetailsActivity.EXTRA_ITEM, (PhotoItem) item);
    101 
    102             Bundle bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(
    103                     getActivity(),
    104                     ((ImageCardView)itemViewHolder.view).getMainImageView(),
    105                     DetailsActivity.SHARED_ELEMENT_NAME).toBundle();
    106             getActivity().startActivity(intent, bundle);
    107         }
    108     }
    109 }
    110