BrowseFragment.java revision af136b73e6c8e377914e494f9870da1618be20d0
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 */ 14package com.example.android.leanback; 15 16import android.content.Intent; 17import android.os.Bundle; 18import android.os.Handler; 19import android.support.v4.app.ActivityOptionsCompat; 20import android.support.v17.leanback.widget.ArrayObjectAdapter; 21import android.support.v17.leanback.widget.HeaderItem; 22import android.support.v17.leanback.widget.ImageCardView; 23import android.support.v17.leanback.widget.ListRow; 24import android.support.v17.leanback.widget.ListRowPresenter; 25import android.support.v17.leanback.widget.OnItemViewClickedListener; 26import android.support.v17.leanback.widget.OnItemViewSelectedListener; 27import android.support.v17.leanback.widget.Presenter; 28import android.support.v17.leanback.widget.Row; 29import android.support.v17.leanback.widget.RowPresenter; 30import android.util.Log; 31import android.view.View; 32import android.view.ViewGroup; 33 34public 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 private ArrayObjectAdapter mRowsAdapter; 40 private BackgroundHelper mBackgroundHelper = new BackgroundHelper(); 41 42 @Override 43 public void onCreate(Bundle savedInstanceState) { 44 Log.i(TAG, "onCreate"); 45 super.onCreate(savedInstanceState); 46 47 setBadgeDrawable(getActivity().getResources().getDrawable(R.drawable.ic_title)); 48 setTitle("Leanback Sample App"); 49 setHeadersState(HEADERS_ENABLED); 50 51 setOnSearchClickedListener(new View.OnClickListener() { 52 @Override 53 public void onClick(View view) { 54 Intent intent = new Intent(getActivity(), SearchActivity.class); 55 startActivity(intent); 56 } 57 }); 58 59 setupRows(); 60 setOnItemViewClickedListener(new ItemViewClickedListener()); 61 setOnItemViewSelectedListener(new OnItemViewSelectedListener() { 62 @Override 63 public void onItemSelected(Presenter.ViewHolder itemViewHolder, Object item, 64 RowPresenter.ViewHolder rowViewHolder, Row row) { 65 Log.i(TAG, "onItemSelected: " + item + " row " + row); 66 67 if (item instanceof PhotoItem) { 68 mBackgroundHelper.setBackground( 69 getActivity(), ((PhotoItem) item).getImageResourceId()); 70 } 71 } 72 }); 73 if (TEST_ENTRANCE_TRANSITION) { 74 // don't run entrance transition if Activity is restored. 75 if (savedInstanceState == null) { 76 prepareEntranceTransition(); 77 } 78 // simulate delay loading data 79 new Handler().postDelayed(new Runnable() { 80 public void run() { 81 startEntranceTransition(); 82 } 83 }, 2000); 84 } 85 86 mBackgroundHelper.attach(getActivity()); 87 } 88 89 private void setupRows() { 90 ListRowPresenter lrp = new ListRowPresenter(); 91 lrp.setRowHeight(CardPresenter.getRowHeight(getActivity())); 92 lrp.setExpandedRowHeight(CardPresenter.getExpandedRowHeight(getActivity())); 93 94 mRowsAdapter = new ArrayObjectAdapter(lrp); 95 96 // For good performance, it's important to use a single instance of 97 // a card presenter for all rows using that presenter. 98 final CardPresenter cardPresenter = new CardPresenter(); 99 100 for (int i = 0; i < NUM_ROWS; ++i) { 101 ArrayObjectAdapter listRowAdapter = new ArrayObjectAdapter(cardPresenter); 102 listRowAdapter.add(new PhotoItem("Hello world", R.drawable.gallery_photo_1)); 103 listRowAdapter.add(new PhotoItem("This is a test", "Only a test", R.drawable.gallery_photo_2)); 104 listRowAdapter.add(new PhotoItem("Android TV", "by Google", R.drawable.gallery_photo_3)); 105 listRowAdapter.add(new PhotoItem("Leanback", R.drawable.gallery_photo_4)); 106 listRowAdapter.add(new PhotoItem("Hello world", R.drawable.gallery_photo_5)); 107 listRowAdapter.add(new PhotoItem("This is a test", "Only a test", R.drawable.gallery_photo_6)); 108 listRowAdapter.add(new PhotoItem("Android TV", "open RowsActivity", R.drawable.gallery_photo_7)); 109 listRowAdapter.add(new PhotoItem("Leanback", "open MainActivity", R.drawable.gallery_photo_8)); 110 HeaderItem header = new HeaderItem(i, "Row " + i); 111 mRowsAdapter.add(new ListRow(header, listRowAdapter)); 112 } 113 114 setAdapter(mRowsAdapter); 115 } 116 117 private final class ItemViewClickedListener implements OnItemViewClickedListener { 118 @Override 119 public void onItemClicked(Presenter.ViewHolder itemViewHolder, Object item, 120 RowPresenter.ViewHolder rowViewHolder, Row row) { 121 122 Intent intent; 123 Bundle bundle; 124 if ( ((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_8) { 125 intent = new Intent(getActivity(), MainActivity.class); 126 bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(getActivity()) 127 .toBundle(); 128 } else if ( ((PhotoItem) item).getImageResourceId() == R.drawable.gallery_photo_7) { 129 intent = new Intent(getActivity(), RowsActivity.class); 130 bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(getActivity()) 131 .toBundle(); 132 } else { 133 intent = new Intent(getActivity(), DetailsActivity.class); 134 intent.putExtra(DetailsActivity.EXTRA_ITEM, (PhotoItem) item); 135 bundle = ActivityOptionsCompat.makeSceneTransitionAnimation( 136 getActivity(), 137 ((ImageCardView)itemViewHolder.view).getMainImageView(), 138 DetailsActivity.SHARED_ELEMENT_NAME).toBundle(); 139 } 140 getActivity().startActivity(intent, bundle); 141 } 142 } 143} 144