本文档讲述了Android系统的四大基本组件

Android系统的进程优先级的变化方式

Activity的生命周期中各状态的变化关系

Activity事件回调函数的作用和调用顺序

Android应用程序的调试方法和工具

-Changes in the relationship between the role of the process of this document describes the four basic components of the Android system Android system priority Activity changes in the way the life cycle of each state' s Activity event callback function is called in order to debug Android applications and tools