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.os.Handler; 19 import android.support.v4.app.ActivityOptionsCompat; 20 import android.support.v17.leanback.widget.ArrayObjectAdapter; 21 import android.support.v17.leanback.widget.HeaderItem; 22 import android.support.v17.leanback.widget.ImageCardView; 23 import android.support.v17.leanback.widget.ListRow; 24 import android.support.v17.leanback.widget.ListRowPresenter; 25 import android.support.v17.leanback.widget.OnItemViewClickedListener; 26 import android.support.v17.leanback.widget.OnItemViewSelectedListener; 27 import android.support.v17.leanback.widget.Presenter; 28 import android.support.v17.leanback.widget.Row; 29 import android.support.v17.leanback.widget.RowPresenter; 30 import android.util.Log; 31 import android.view.View; 32 import android.view.ViewGroup; 33 34 public class BrowseFragment extends android.support.v17.leanback.app.BrowseFragment { 35 private static final String TAG = "leanback.BrowseFragment"; 36 37 private static final boolean TEST_ENTRANCE_TRANSITION = true; 38 private static final int NUM_ROWS = 10; 39 // Row heights default to wrap content 40 private static final boolean USE_FIXED_ROW_HEIGHT = false; 41 42 private ArrayObjectAdapter mRowsAdapter; 43 private BackgroundHelper mBackgroundHelper = new BackgroundHelper(); 44 45 @Override onCreate(Bundle savedInstanceState)46 public void onCreate(Bundle savedInstanceState) { 47 Log.i(TAG, "onCreate"); 48 super.onCreate(savedInstanceState); 49 50 setBadgeDrawable(getActivity().getResources().getDrawable(R.drawable.ic_title)); 51 setTitle("Leanback Sample App"); 52 setHeadersState(HEADERS_ENABLED); 53 54 setOnSearchClickedListener(new View.OnClickListener() { 55 @Override 56 public void onClick(View view) { 57 Intent intent = new Intent(getActivity(), SearchActivity.class); 58 startActivity(intent); 59 } 60 }); 61 62 setupRows(); 63 setOnItemViewClickedListener(new ItemViewClickedListener()); 64 setOnItemViewSelectedListener(new OnItemViewSelectedListener() { 65 @Override 66 public void onItemSelected(Presenter.ViewHolder itemViewHolder, Object item, 67 RowPresenter.ViewHolder rowViewHolder, Row row) { 68 Log.i(TAG, "onItemSelected: " + item + " row " + row); 69 70 if (isShowingHeaders()) { 71 mBackgroundHelper.setBackground(getActivity(), null); 72 } 73 else if (item instanceof PhotoItem) { 74 mBackgroundHelper.setBackground( 75 getActivity(), ((PhotoItem) item).getImageResourceId()); 76 } 77 } 78 }); 79 if (TEST_ENTRANCE_TRANSITION) { 80 // don't run entrance transition if Activity is restored. 81 if (savedInstanceState == null) { 82 prepareEntranceTransition(); 83 } 84 // simulate delay loading data 85 new Handler().postDelayed(new Runnable() { 86 public void run() { 87 startEntranceTransition(); 88 } 89 }, 2000); 90 } 91 } 92 setupRows()93 private void setupRows() { 94 ListRowPresenter lrp = new ListRowPresenter(); 95 96 if (USE_FIXED_ROW_HEIGHT) { 97 lrp.setRowHeight(CardPresenter.getRowHeight(getActivity())); 98 lrp.setExpandedRowHeight(CardPresenter.getExpandedRowHeight(getActivity())); 99 } 100 101 mRowsAdapter = new ArrayObjectAdapter(lrp); 102 103 // For good performance, it's important to use a single instance of 104 // a card presenter for all rows using that presenter. 105 final CardPresenter cardPresenter = new CardPresenter(); 106 107 for (int i = 0; i < NUM_ROWS; ++i) { 108 ArrayObjectAdapter listRowAdapter = new ArrayObjectAdapter(cardPresenter); 109 listRowAdapter.add(new PhotoItem("Hello world", R.drawable.gallery_photo_1)); 110 listRowAdapter.add(new PhotoItem("This is a test", "Only a test", R.drawable.gallery_photo_2)); 111 listRowAdapter.add(new PhotoItem("Android TV", "by Google", R.drawable.gallery_photo_3)); 112 listRowAdapter.add(new PhotoItem("Leanback", R.drawable.gallery_photo_4)); 113 listRowAdapter.add(new PhotoItem("Hello world", R.drawable.gallery_photo_5)); 114 listRowAdapter.add(new PhotoItem("This is a test", "Only a test", R.drawable.gallery_photo_6)); 115 listRowAdapter.add(new PhotoItem("Android TV", "open RowsActivity", R.drawable.gallery_photo_7)); 116 listRowAdapter.add(new PhotoItem("Leanback", "open BrowseActivity", R.drawable.gallery_photo_8)); 117 HeaderItem header = new HeaderItem(i, "Row " + i); 118 mRowsAdapter.add(new ListRow(header, listRowAdapter)); 119 } 120 121 setAdapter(mRowsAdapter); 122 } 123 124 private final class ItemViewClickedListener implements OnItemViewClickedListener { 125 @Override onItemClicked(Presenter.ViewHolder itemViewHolder, Object item, RowPresenter.ViewHolder rowViewHolder, Row row)126 public void onItemClicked(Presenter.ViewHolder itemViewHolder, Object item, 127 RowPresenter.ViewHolder rowViewHolder, Row row) { 128 129 Intent intent; 130 Bundle bundle; 131 if ( ((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_8) { 132 intent = new Intent(getActivity(), BrowseActivity.class); 133 bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(getActivity()) 134 .toBundle(); 135 } else if ( ((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_7) { 136 intent = new Intent(getActivity(), RowsActivity.class); 137 bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(getActivity()) 138 .toBundle(); 139 } else { 140 intent = new Intent(getActivity(), DetailsActivity.class); 141 intent.putExtra(DetailsActivity.EXTRA_ITEM, (PhotoItem) item); 142 bundle = ActivityOptionsCompat.makeSceneTransitionAnimation( 143 getActivity(), 144 ((ImageCardView)itemViewHolder.view).getMainImageView(), 145 DetailsActivity.SHARED_ELEMENT_NAME).toBundle(); 146 } 147 getActivity().startActivity(intent, bundle); 148 } 149 } 150 } 151