本文深入探讨了Android系统中应用程序IntentReceiver的机制，详细阐述了当应用被添加或移除时，系统如何通过IntentReceiver接收通知，并对HomeScreen项、LauncherModer、mDesktopItem和mCacheInfo进行相应的操作。文章还具体说明了删除操作分为两种类型，以及添加和更新应用时的处理过程。
http://blog.youkuaiyun.com/wong_judy/article/details/5192814
- 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();
- HomeScreen上的Item删除 -->LauncherModer.removeShortcutsForPackage()
- 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();
- add --> LauncherModer. addPackage()()
- 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();
- delete分为两种(Intent.ACTION_PACKAGE_REMOVED)
LauncherModer.java 对数据库favirotor的操作以及mDesktopItems,mCacheInfo
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