[四大组件](%E5%9B%9B%E5%A4%A7%E7%BB%84%E4%BB%B6.md) [Handler](Handler.md) [启动流程](%E5%90%AF%E5%8A%A8%E6%B5%81%E7%A8%8B.md) [View](View.md) [Binder](Binder.md) [Android组件](Android%E7%BB%84%E4%BB%B6.md)