RowsSupportFragment.java revision 87b904ffa106f12f2fecfe8b9a46084863678f29 
1/* This file is auto-generated from RowsFragment.java.  DO NOT MODIFY. */
2
3/*
4 * Copyright (C) 2014 The Android Open Source Project
5 *
6 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
7 * in compliance with the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software distributed under the License
12 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
13 * or implied. See the License for the specific language governing permissions and limitations under
14 * the License.
15 */
16package com.example.android.leanback;
17
18import android.app.Activity;
19import android.content.Intent;
20import android.os.Bundle;
21import android.support.v17.leanback.widget.TitleHelper;
22import android.support.v17.leanback.widget.TitleView;
23import android.support.v4.app.ActivityOptionsCompat;
24import android.support.v17.leanback.R;
25import android.support.v17.leanback.widget.ArrayObjectAdapter;
26import android.support.v17.leanback.widget.HeaderItem;
27import android.support.v17.leanback.widget.ImageCardView;
28import android.support.v17.leanback.widget.ListRow;
29import android.support.v17.leanback.widget.ListRowPresenter;
30import android.support.v17.leanback.widget.OnItemViewClickedListener;
31import android.support.v17.leanback.widget.OnItemViewSelectedListener;
32import android.support.v17.leanback.widget.Presenter;
33import android.support.v17.leanback.widget.Row;
34import android.support.v17.leanback.widget.RowPresenter;
35import android.util.Log;
36import android.view.LayoutInflater;
37import android.view.View;
38import android.view.ViewGroup;
39
40public class RowsSupportFragment extends android.support.v17.leanback.app.RowsSupportFragment {
41
42    private static final String TAG = "leanback.RowsSupportFragment";
43
44    private static final int NUM_ROWS = 10;
45    // Row heights default to wrap content
46    private static final boolean USE_FIXED_ROW_HEIGHT = false;
47
48    private ArrayObjectAdapter mRowsAdapter;
49    private TitleHelper mTitleHelper;
50
51    public void setTitleHelper(TitleHelper titleHelper) {
52        mTitleHelper = titleHelper;
53    }
54
55    @Override
56    public void onCreate(Bundle savedInstanceState) {
57        Log.i(TAG, "onCreate");
58        super.onCreate(savedInstanceState);
59
60        setupRows();
61        setOnItemViewClickedListener(new ItemViewClickedListener());
62        setOnItemViewSelectedListener(new OnItemViewSelectedListener() {
63            @Override
64            public void onItemSelected(Presenter.ViewHolder itemViewHolder, Object item,
65                    RowPresenter.ViewHolder rowViewHolder, Row row) {
66                Log.i(TAG, "onItemSelected: " + item + " row " + row);
67                if (mTitleHelper != null) {
68                    mTitleHelper.showTitle(getAdapter() == null || getAdapter().size() == 0 ||
69                            getAdapter().get(0) == row);
70                }
71            }
72        });
73    }
74
75    private void setupRows() {
76        ListRowPresenter lrp = new ListRowPresenter();
77
78        // For good performance, it's important to use a single instance of
79        // a card presenter for all rows using that presenter.
80        final CardPresenter cardPresenter = new CardPresenter();
81
82        if (USE_FIXED_ROW_HEIGHT) {
83            lrp.setRowHeight(cardPresenter.getRowHeight(getActivity()));
84            lrp.setExpandedRowHeight(cardPresenter.getExpandedRowHeight(getActivity()));
85        }
86
87        mRowsAdapter = new ArrayObjectAdapter(lrp);
88
89        for (int i = 0; i < NUM_ROWS; ++i) {
90            ArrayObjectAdapter listRowAdapter = new ArrayObjectAdapter(cardPresenter);
91            listRowAdapter.add(new PhotoItem("Hello world", R.drawable.gallery_photo_1));
92            listRowAdapter.add(new PhotoItem("This is a test", R.drawable.gallery_photo_2));
93            listRowAdapter.add(new PhotoItem("Android TV", R.drawable.gallery_photo_3));
94            listRowAdapter.add(new PhotoItem("Leanback", R.drawable.gallery_photo_4));
95            listRowAdapter.add(new PhotoItem("Hello world", R.drawable.gallery_photo_5));
96            listRowAdapter.add(new PhotoItem("This is a test", R.drawable.gallery_photo_6));
97            listRowAdapter.add(new PhotoItem("Android TV", R.drawable.gallery_photo_7));
98            listRowAdapter.add(new PhotoItem("Leanback", R.drawable.gallery_photo_8));
99            HeaderItem header = new HeaderItem(i, "Row " + i);
100            mRowsAdapter.add(new ListRow(header, listRowAdapter));
101        }
102
103        setAdapter(mRowsAdapter);
104    }
105
106    private final class ItemViewClickedListener implements OnItemViewClickedListener {
107        @Override
108        public void onItemClicked(Presenter.ViewHolder itemViewHolder, Object item,
109                RowPresenter.ViewHolder rowViewHolder, Row row) {
110            Intent intent = new Intent(getActivity(), DetailsSupportActivity.class);
111            intent.putExtra(DetailsSupportActivity.EXTRA_ITEM, (PhotoItem) item);
112
113            Bundle bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(
114                    getActivity(),
115                    ((ImageCardView)itemViewHolder.view).getMainImageView(),
116                    DetailsSupportActivity.SHARED_ELEMENT_NAME).toBundle();
117            getActivity().startActivity(intent, bundle);
118        }
119    }
120}
121