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      1 /*
      2  * Copyright (C) 2012 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.launcher2;
     18 
     19 import java.io.IOException;
     20 import java.util.ArrayList;
     21 
     22 import com.android.launcher.R;
     23 
     24 import android.app.WallpaperManager;
     25 import android.content.BroadcastReceiver;
     26 import android.content.Context;
     27 import android.content.Intent;
     28 import android.content.res.Resources;
     29 
     30 /**
     31  * Takes care of setting initial wallpaper for a user, by selecting the
     32  * first wallpaper that is not in use by another user.
     33  */
     34 public class UserInitializeReceiver extends BroadcastReceiver {
     35     @Override
     36     public void onReceive(Context context, Intent intent) {
     37         final Resources resources = context.getResources();
     38         // Context.getPackageName() may return the "original" package name,
     39         // com.android.launcher2; Resources needs the real package name,
     40         // com.android.launcher. So we ask Resources for what it thinks the
     41         // package name should be.
     42         final String packageName = resources.getResourcePackageName(R.array.wallpapers);
     43         ArrayList<Integer> list = new ArrayList<Integer>();
     44         addWallpapers(resources, packageName, R.array.wallpapers, list);
     45         addWallpapers(resources, packageName, R.array.extra_wallpapers, list);
     46         WallpaperManager wpm = (WallpaperManager) context.getSystemService(
     47                 Context.WALLPAPER_SERVICE);
     48         for (int i=1; i<list.size(); i++) {
     49             int resid = list.get(i);
     50             if (!wpm.hasResourceWallpaper(resid)) {
     51                 try {
     52                     wpm.setResource(resid);
     53                 } catch (IOException e) {
     54                 }
     55                 return;
     56             }
     57         }
     58     }
     59 
     60     private void addWallpapers(Resources resources, String packageName, int resid,
     61             ArrayList<Integer> outList) {
     62         final String[] extras = resources.getStringArray(resid);
     63         for (String extra : extras) {
     64             int res = resources.getIdentifier(extra, "drawable", packageName);
     65             if (res != 0) {
     66                 outList.add(res);
     67             }
     68         }
     69     }
     70 }
     71