ApplicationsIntentReceiver.class

 http://blog.csdn.net/wong_judy/article/details/5192814

1. ApplicationsIntentReceiver.class -->Receives notifications when applications are added/removed

• ApplicationsIntentReceiver.class 一个BroadcastReceiver主要实现ap的package的ADD和remove或Change Action:
  • delete分为两种(Intent.ACTION_PACKAGE_REMOVED)
    • HomeScreen上的Item删除 -->LauncherModer.removeShortcutsForPackage()
      • mDesktopItem.delete
      • 删除数据库favoritor
      • 删除view
      • 重新画view
    • 第二种是SlidingDraw中的删除-->Launcher.removePackage()
      • mApplicationsAdapter.delete
      • mAppInfoCache.delete
      • adapter.notifyDataSetChanged();
      • mAppInfoCache.add();
  • package ADD( Action=Intent.ACTION_PACKAGE_ADD)
    • add --> LauncherModer. addPackage()()
      • mApplicationsAdapter.add(applicationInfo)
      •  adapter.notifyDataSetChanged();//notify change
    • update -->add的时候以前的包LauncherModer.updatePackage
      • updateAndCacheApplicationInfo()//update the 
      • updateApplicationInfoTitleAndIcon()//update the icon and title
      • adapter.notifyDataSetChanged();
  • when the package change call (Intent.ACTION_PACKAGE_CHANGED)-> LauncherModer.syncPackage 
    • adapter.remove(info);
    • cache.remove(info.intent.getComponent());
    • adapter.sort(new ApplicationInfoComparator());
    • adapter.notifyDataSetChanged();

LauncherModer.java 对数据库favirotor的操作以及mDesktopItems,mCacheInfo