[Message、MessageQueue、Looper、Handler 的对象关系](Message%E3%80%81MessageQueue%E3%80%81Looper%E3%80%81Handler%E7%9A%84%E5%AF%B9%E8%B1%A1%E5%85%B3%E7%B3%BB.md) [Handler 使用](Handler%E4%BD%BF%E7%94%A8.md) [Handler 源码分析](Handler%E6%BA%90%E7%A0%81%E5%88%86%E6%9E%90.md) [HandlerThread](HandlerThread.md) [AsyncTask](AsyncTask.md) [IntentService](IntentService.md)