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      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
     37     public void onCreate(Bundle savedInstanceState) {
     38         super.onCreate(savedInstanceState);
     39 
     40         addPreferencesFromResource(R.xml.wallpaper_settings);
     41         populateWallpaperTypes();
     42     }
     43 
     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