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.Context;
17import android.content.Intent;
18import android.os.Bundle;
19import android.os.Handler;
20import android.support.v17.leanback.widget.ArrayObjectAdapter;
21import android.support.v17.leanback.widget.OnItemViewClickedListener;
22import android.support.v17.leanback.widget.OnItemViewSelectedListener;
23import android.support.v17.leanback.widget.Presenter;
24import android.support.v17.leanback.widget.Row;
25import android.support.v17.leanback.widget.RowPresenter;
26import android.support.v17.leanback.widget.VerticalGridPresenter;
27import android.support.v4.content.res.ResourcesCompat;
28import android.util.Log;
29import android.view.View;
30
31public class VerticalGridFragment extends android.support.v17.leanback.app.VerticalGridFragment {
32    private static final String TAG = "leanback.VerticalGridFragment";
33
34    private static final int NUM_COLUMNS = 3;
35    private static final int NUM_ITEMS = 50;
36    private static final int HEIGHT = 200;
37    private static final boolean TEST_ENTRANCE_TRANSITION = true;
38
39    private static class Adapter extends ArrayObjectAdapter {
40        public Adapter(StringPresenter presenter) {
41            super(presenter);
42        }
43        public void callNotifyChanged() {
44            super.notifyChanged();
45        }
46    }
47    private Adapter mAdapter;
48
49    @Override
50    public void onCreate(Bundle savedInstanceState) {
51        Log.i(TAG, "onCreate");
52        super.onCreate(savedInstanceState);
53
54        final Context context = getActivity();
55        setBadgeDrawable(ResourcesCompat.getDrawable(context.getResources(),
56                R.drawable.ic_title, context.getTheme()));
57        setTitle("Leanback Vertical Grid Demo");
58
59        setupFragment();
60        if (TEST_ENTRANCE_TRANSITION) {
61            // don't run entrance transition if fragment is restored.
62            if (savedInstanceState == null) {
63                prepareEntranceTransition();
64            }
65        }
66        // simulates in a real world use case  data being loaded two seconds later
67        new Handler().postDelayed(new Runnable() {
68            @Override
69            public void run() {
70                loadData();
71                startEntranceTransition();
72            }
73        }, 2000);
74    }
75
76    private void loadData() {
77        for (int i = 0; i < NUM_ITEMS; i++) {
78            mAdapter.add(Integer.toString(i));
79        }
80    }
81
82    private void setupFragment() {
83        VerticalGridPresenter gridPresenter = new VerticalGridPresenter();
84        gridPresenter.setNumberOfColumns(NUM_COLUMNS);
85        setGridPresenter(gridPresenter);
86
87        mAdapter = new Adapter(new StringPresenter());
88        setAdapter(mAdapter);
89
90        setOnItemViewSelectedListener(new OnItemViewSelectedListener() {
91            @Override
92            public void onItemSelected(Presenter.ViewHolder itemViewHolder, Object item,
93                    RowPresenter.ViewHolder rowViewHolder, Row row) {
94                Log.i(TAG, "onItemSelected: " + item + " row " + row);
95            }
96        });
97
98        setOnItemViewClickedListener(new OnItemViewClickedListener() {
99            @Override
100            public void onItemClicked(Presenter.ViewHolder itemViewHolder, Object item,
101                    RowPresenter.ViewHolder rowViewHolder, Row row) {
102                Log.i(TAG, "onItemClicked: " + item + " row " + row);
103                mAdapter.callNotifyChanged();
104            }
105        });
106        setOnSearchClickedListener(new View.OnClickListener() {
107            @Override
108            public void onClick(View view) {
109                Intent intent = new Intent(getActivity(), SearchActivity.class);
110                startActivity(intent);
111            }
112        });
113    }
114}
115