1/*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.tv.settings;
18
19import android.app.Activity;
20import android.os.Bundle;
21import android.graphics.drawable.Drawable;
22import android.support.v17.leanback.app.BrowseFragment;
23import android.support.v17.leanback.widget.ListRow;
24import android.support.v17.leanback.widget.ListRowPresenter;
25import android.support.v17.leanback.widget.ClassPresenterSelector;
26import android.support.v17.leanback.widget.ObjectAdapter;
27
28/**
29 * Activity showing a menu of settings.
30 */
31public abstract class MenuActivity extends Activity {
32
33    private static final String TAG_BROWSE_FRAGMENT = "browse_fragment";
34
35    private BrowseFragment mBrowseFragment;
36
37    protected abstract String getBrowseTitle();
38
39    protected abstract Drawable getBadgeImage();
40
41    protected abstract BrowseInfoFactory getBrowseInfoFactory();
42
43    @Override
44    protected void onCreate(Bundle savedInstanceState) {
45        super.onCreate(savedInstanceState);
46
47        mBrowseFragment = (BrowseFragment) getFragmentManager().findFragmentByTag(
48                TAG_BROWSE_FRAGMENT);
49        if (mBrowseFragment == null) {
50            mBrowseFragment = new BrowseFragment();
51            getFragmentManager().beginTransaction()
52                    .replace(android.R.id.content, mBrowseFragment, TAG_BROWSE_FRAGMENT)
53                    .commit();
54        }
55
56        ClassPresenterSelector rowPresenterSelector = new ClassPresenterSelector();
57        rowPresenterSelector.addClassPresenter(ListRow.class, new ListRowPresenter());
58
59        ObjectAdapter adapter = getBrowseInfoFactory().getRows();
60        adapter.setPresenterSelector(rowPresenterSelector);
61
62        mBrowseFragment.setAdapter(adapter);
63        updateBrowseParams();
64    }
65
66    protected void updateBrowseParams() {
67        mBrowseFragment.setTitle(getBrowseTitle());
68        mBrowseFragment.setBadgeDrawable(getBadgeImage());
69        mBrowseFragment.setHeadersState(BrowseFragment.HEADERS_DISABLED);
70    }
71}
72