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      1 // CHECKSTYLE:OFF Generated code
      2 /* This file is auto-generated from RowsFragment.java.  DO NOT MODIFY. */
      3 
      4 /*
      5  * Copyright (C) 2014 The Android Open Source Project
      6  *
      7  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
      8  * in compliance with the License. You may obtain a copy of the License at
      9  *
     10  * http://www.apache.org/licenses/LICENSE-2.0
     11  *
     12  * Unless required by applicable law or agreed to in writing, software distributed under the License
     13  * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
     14  * or implied. See the License for the specific language governing permissions and limitations under
     15  * the License.
     16  */
     17 package com.example.android.leanback;
     18 
     19 import android.content.Intent;
     20 import android.os.Bundle;
     21 import android.support.v17.leanback.widget.ArrayObjectAdapter;
     22 import android.support.v17.leanback.widget.HeaderItem;
     23 import android.support.v17.leanback.widget.ImageCardView;
     24 import android.support.v17.leanback.widget.ListRow;
     25 import android.support.v17.leanback.widget.ListRowPresenter;
     26 import android.support.v17.leanback.widget.OnItemViewClickedListener;
     27 import android.support.v17.leanback.widget.OnItemViewSelectedListener;
     28 import android.support.v17.leanback.widget.Presenter;
     29 import android.support.v17.leanback.widget.Row;
     30 import android.support.v17.leanback.widget.RowPresenter;
     31 import android.support.v17.leanback.widget.TitleHelper;
     32 import android.support.v4.app.ActivityOptionsCompat;
     33 import android.util.Log;
     34 
     35 public class RowsSupportFragment extends android.support.v17.leanback.app.RowsSupportFragment {
     36 
     37     private static final String TAG = "leanback.RowsSupportFragment";
     38 
     39     private static final int NUM_ROWS = 10;
     40     // Row heights default to wrap content
     41     private static final boolean USE_FIXED_ROW_HEIGHT = false;
     42 
     43     private TitleHelper mTitleHelper;
     44 
     45     public void setTitleHelper(TitleHelper titleHelper) {
     46         mTitleHelper = titleHelper;
     47     }
     48 
     49     @Override
     50     public void onCreate(Bundle savedInstanceState) {
     51         Log.i(TAG, "onCreate");
     52         super.onCreate(savedInstanceState);
     53 
     54         setupRows();
     55         setOnItemViewClickedListener(new ItemViewClickedListener());
     56         setOnItemViewSelectedListener(new OnItemViewSelectedListener() {
     57             @Override
     58             public void onItemSelected(Presenter.ViewHolder itemViewHolder, Object item,
     59                     RowPresenter.ViewHolder rowViewHolder, Row row) {
     60                 Log.i(TAG, "onItemSelected: " + item + " row " + row);
     61                 if (mTitleHelper != null) {
     62                     mTitleHelper.showTitle(getAdapter() == null || getAdapter().size() == 0 ||
     63                             getAdapter().get(0) == row);
     64                 }
     65             }
     66         });
     67     }
     68 
     69     private void setupRows() {
     70         ListRowPresenter lrp = new ListRowPresenter();
     71 
     72         // For good performance, it's important to use a single instance of
     73         // a card presenter for all rows using that presenter.
     74         final CardPresenter cardPresenter = new CardPresenter();
     75 
     76         if (USE_FIXED_ROW_HEIGHT) {
     77             lrp.setRowHeight(cardPresenter.getRowHeight(getActivity()));
     78             lrp.setExpandedRowHeight(cardPresenter.getExpandedRowHeight(getActivity()));
     79         }
     80 
     81         ArrayObjectAdapter rowsAdapter = new ArrayObjectAdapter(lrp);
     82 
     83         for (int i = 0; i < NUM_ROWS; ++i) {
     84             ArrayObjectAdapter listRowAdapter = new ArrayObjectAdapter(cardPresenter);
     85             listRowAdapter.add(new PhotoItem("Hello world", R.drawable.gallery_photo_1));
     86             listRowAdapter.add(new PhotoItem("This is a test", R.drawable.gallery_photo_2));
     87             listRowAdapter.add(new PhotoItem("Android TV", R.drawable.gallery_photo_3));
     88             listRowAdapter.add(new PhotoItem("Leanback", R.drawable.gallery_photo_4));
     89             listRowAdapter.add(new PhotoItem("Hello world", R.drawable.gallery_photo_5));
     90             listRowAdapter.add(new PhotoItem("This is a test", R.drawable.gallery_photo_6));
     91             listRowAdapter.add(new PhotoItem("Android TV", R.drawable.gallery_photo_7));
     92             listRowAdapter.add(new PhotoItem("Leanback", R.drawable.gallery_photo_8));
     93             HeaderItem header = new HeaderItem(i, "Row " + i);
     94             rowsAdapter.add(new ListRow(header, listRowAdapter));
     95         }
     96 
     97         setAdapter(rowsAdapter);
     98     }
     99 
    100     private final class ItemViewClickedListener implements OnItemViewClickedListener {
    101         @Override
    102         public void onItemClicked(Presenter.ViewHolder itemViewHolder, Object item,
    103                 RowPresenter.ViewHolder rowViewHolder, Row row) {
    104             Intent intent = new Intent(getActivity(), DetailsSupportActivity.class);
    105             intent.putExtra(DetailsSupportActivity.EXTRA_ITEM, (PhotoItem) item);
    106 
    107             Bundle bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(
    108                     getActivity(),
    109                     ((ImageCardView)itemViewHolder.view).getMainImageView(),
    110                     DetailsSupportActivity.SHARED_ELEMENT_NAME).toBundle();
    111             getActivity().startActivity(intent, bundle);
    112         }
    113     }
    114 }
    115