1 /*
2  * Copyright (C) 2011 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 
17 package com.android.settings;
18 
19 import android.content.ComponentName;
20 import android.content.Context;
21 import android.content.Intent;
22 import android.content.pm.PackageManager;
23 import android.content.pm.ResolveInfo;
24 import android.os.Bundle;
25 import android.preference.Preference;
26 import android.preference.PreferenceScreen;
27 import com.android.settings.search.BaseSearchIndexProvider;
28 import com.android.settings.search.Indexable;
29 import com.android.settings.search.SearchIndexableRaw;
30 
31 import java.util.ArrayList;
32 import java.util.List;
33 
34 public class WallpaperTypeSettings extends SettingsPreferenceFragment implements Indexable {
35 
36     @Override
onCreate(Bundle savedInstanceState)37     public void onCreate(Bundle savedInstanceState) {
38         super.onCreate(savedInstanceState);
39 
40         addPreferencesFromResource(R.xml.wallpaper_settings);
41         populateWallpaperTypes();
42     }
43 
populateWallpaperTypes()44     private void populateWallpaperTypes() {
45         // Search for activities that satisfy the ACTION_SET_WALLPAPER action
46         final Intent intent = new Intent(Intent.ACTION_SET_WALLPAPER);
47         final PackageManager pm = getPackageManager();
48         final List<ResolveInfo> rList = pm.queryIntentActivities(intent,
49                 PackageManager.MATCH_DEFAULT_ONLY);
50 
51         final PreferenceScreen parent = getPreferenceScreen();
52         parent.setOrderingAsAdded(false);
53         // Add Preference items for each of the matching activities
54         for (ResolveInfo info : rList) {
55             Preference pref = new Preference(getActivity());
56             Intent prefIntent = new Intent(intent);
57             prefIntent.setComponent(new ComponentName(
58                     info.activityInfo.packageName, info.activityInfo.name));
59             pref.setIntent(prefIntent);
60             CharSequence label = info.loadLabel(pm);
61             if (label == null) label = info.activityInfo.packageName;
62             pref.setTitle(label);
63             parent.addPreference(pref);
64         }
65     }
66 
67     public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
68         new BaseSearchIndexProvider() {
69             @Override
70             public List<SearchIndexableRaw> getRawDataToIndex(Context context, boolean enabled) {
71                 final List<SearchIndexableRaw> result = new ArrayList<SearchIndexableRaw>();
72 
73                 final Intent intent = new Intent(Intent.ACTION_SET_WALLPAPER);
74                 final PackageManager pm = context.getPackageManager();
75                 final List<ResolveInfo> rList = pm.queryIntentActivities(intent,
76                         PackageManager.MATCH_DEFAULT_ONLY);
77 
78                 // Add indexable data for each of the matching activities
79                 for (ResolveInfo info : rList) {
80                     CharSequence label = info.loadLabel(pm);
81                     if (label == null) label = info.activityInfo.packageName;
82 
83                     SearchIndexableRaw data = new SearchIndexableRaw(context);
84                     data.title = label.toString();
85                     data.screenTitle = context.getResources().getString(
86                             R.string.wallpaper_settings_fragment_title);
87                     data.intentAction = Intent.ACTION_SET_WALLPAPER;
88                     data.intentTargetPackage = info.activityInfo.packageName;
89                     data.intentTargetClass = info.activityInfo.name;
90                     result.add(data);
91                 }
92 
93                 return result;
94             }
95         };
96 }
97