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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.util.Log;
     22 
     23 import androidx.core.app.ActivityOptionsCompat;
     24 import androidx.leanback.widget.ArrayObjectAdapter;
     25 import androidx.leanback.widget.HeaderItem;
     26 import androidx.leanback.widget.ImageCardView;
     27 import androidx.leanback.widget.ListRow;
     28 import androidx.leanback.widget.ListRowPresenter;
     29 import androidx.leanback.widget.OnItemViewClickedListener;
     30 import androidx.leanback.widget.OnItemViewSelectedListener;
     31 import androidx.leanback.widget.Presenter;
     32 import androidx.leanback.widget.Row;
     33 import androidx.leanback.widget.RowPresenter;
     34 import androidx.leanback.widget.TitleHelper;
     35 
     36 public class RowsSupportFragment extends androidx.leanback.app.RowsSupportFragment {
     37 
     38     private static final String TAG = "leanback.RowsSupportFragment";
     39 
     40     private static final int NUM_ROWS = 10;
     41     // Row heights default to wrap content
     42     private static final boolean USE_FIXED_ROW_HEIGHT = false;
     43 
     44     private TitleHelper mTitleHelper;
     45 
     46     public void setTitleHelper(TitleHelper titleHelper) {
     47         mTitleHelper = titleHelper;
     48     }
     49 
     50     @Override
     51     public void onCreate(Bundle savedInstanceState) {
     52         Log.i(TAG, "onCreate");
     53         super.onCreate(savedInstanceState);
     54 
     55         setupRows();
     56         setOnItemViewClickedListener(new ItemViewClickedListener());
     57         setOnItemViewSelectedListener(new OnItemViewSelectedListener() {
     58             @Override
     59             public void onItemSelected(Presenter.ViewHolder itemViewHolder, Object item,
     60                     RowPresenter.ViewHolder rowViewHolder, Row row) {
     61                 Log.i(TAG, "onItemSelected: " + item + " row " + row);
     62                 if (mTitleHelper != null) {
     63                     mTitleHelper.showTitle(getAdapter() == null || getAdapter().size() == 0 ||
     64                             getAdapter().get(0) == row);
     65                 }
     66             }
     67         });
     68     }
     69 
     70     private void setupRows() {
     71         ListRowPresenter lrp = new ListRowPresenter();
     72 
     73         // For good performance, it's important to use a single instance of
     74         // a card presenter for all rows using that presenter.
     75         final CardPresenter cardPresenter = new CardPresenter();
     76 
     77         if (USE_FIXED_ROW_HEIGHT) {
     78             lrp.setRowHeight(cardPresenter.getRowHeight(getActivity()));
     79             lrp.setExpandedRowHeight(cardPresenter.getExpandedRowHeight(getActivity()));
     80         }
     81 
     82         ArrayObjectAdapter rowsAdapter = new ArrayObjectAdapter(lrp);
     83 
     84         for (int i = 0; i < NUM_ROWS; ++i) {
     85             ArrayObjectAdapter listRowAdapter = new ArrayObjectAdapter(cardPresenter);
     86             listRowAdapter.add(new PhotoItem("Hello world", R.drawable.gallery_photo_1));
     87             listRowAdapter.add(new PhotoItem("This is a test", R.drawable.gallery_photo_2));
     88             listRowAdapter.add(new PhotoItem("Android TV", R.drawable.gallery_photo_3));
     89             listRowAdapter.add(new PhotoItem("Leanback", R.drawable.gallery_photo_4));
     90             listRowAdapter.add(new PhotoItem("Hello world", R.drawable.gallery_photo_5));
     91             listRowAdapter.add(new PhotoItem("This is a test", R.drawable.gallery_photo_6));
     92             listRowAdapter.add(new PhotoItem("Android TV", R.drawable.gallery_photo_7));
     93             listRowAdapter.add(new PhotoItem("Leanback", R.drawable.gallery_photo_8));
     94             HeaderItem header = new HeaderItem(i, "Row " + i);
     95             rowsAdapter.add(new ListRow(header, listRowAdapter));
     96         }
     97 
     98         setAdapter(rowsAdapter);
     99     }
    100 
    101     private final class ItemViewClickedListener implements OnItemViewClickedListener {
    102         @Override
    103         public void onItemClicked(Presenter.ViewHolder itemViewHolder, Object item,
    104                 RowPresenter.ViewHolder rowViewHolder, Row row) {
    105             Intent intent = new Intent(getActivity(), DetailsSupportActivity.class);
    106             intent.putExtra(DetailsSupportActivity.EXTRA_ITEM, (PhotoItem) item);
    107 
    108             Bundle bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(
    109                     getActivity(),
    110                     ((ImageCardView)itemViewHolder.view).getMainImageView(),
    111                     DetailsSupportActivity.SHARED_ELEMENT_NAME).toBundle();
    112             getActivity().startActivity(intent, bundle);
    113         }
    114     }
    115 }
    116