1 /* 2 * Copyright (C) 2010 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.gallery3d.app; 18 19 import android.content.BroadcastReceiver; 20 import android.content.Context; 21 import android.content.Intent; 22 import android.content.SharedPreferences; 23 import android.preference.PreferenceManager; 24 25 import com.android.gallery3d.picasasource.PicasaSource; 26 27 public class PackagesMonitor extends BroadcastReceiver { 28 public static final String KEY_PACKAGES_VERSION = "packages-version"; 29 30 public synchronized static int getPackagesVersion(Context context) { 31 SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context); 32 return prefs.getInt(KEY_PACKAGES_VERSION, 1); 33 } 34 35 @Override 36 public void onReceive(final Context context, final Intent intent) { 37 final PendingResult result = goAsync(); 38 new Thread("GalleryPackagesMonitorAsync") { 39 @Override 40 public void run() { 41 try { 42 onReceiveAsync(context, intent); 43 } catch (Throwable t) { 44 Log.e("PackagesMonitor", "onReceiveAsync", t); 45 } finally { 46 result.finish(); 47 } 48 } 49 }.start(); 50 } 51 52 // Runs in a background thread. 53 private void onReceiveAsync(Context context, Intent intent) { 54 SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context); 55 56 int version = prefs.getInt(KEY_PACKAGES_VERSION, 1); 57 prefs.edit().putInt(KEY_PACKAGES_VERSION, version + 1).commit(); 58 59 String action = intent.getAction(); 60 String packageName = intent.getData().getSchemeSpecificPart(); 61 if (Intent.ACTION_PACKAGE_ADDED.equals(action)) { 62 PicasaSource.onPackageAdded(context, packageName); 63 } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action)) { 64 PicasaSource.onPackageRemoved(context, packageName); 65 } else if (Intent.ACTION_PACKAGE_CHANGED.equals(action)) { 66 PicasaSource.onPackageChanged(context, packageName); 67 } 68 } 69 } 70
