Android相关整理系列
基础知识篇
1.Activity生命周期
1>启动过程: onCreate->onStart->onResume
02-23 12:00:24.998 10574-10574/? E/MainActivity: onCreate
02-23 12:00:24.998 10574-10574/? E/MainActivity: onStart
02-23 12:00:25.002 10574-10574/? E/MainActivity: onResume
2>销毁过程:onPause->onStop->onDestory
02-23 12:02:28.477 10574-10574/? E/MainActivity: onPause
02-23 12:02:28.867 10574-10574/? E/MainActivity: onStop
02-23 12:02:28.867 10574-10574/? E/MainActivity: onDestroy
3>退到后台过程: onPause->onStop
02-23 12:06:46.523 10574-10574/? E/MainActivity: onPause
02-23 12:06:46.540 10574-10574/? E/MainActivity: onStop
4>回到前台过程:onStart->onResume
02-23 12:08:31.161 10574-10574/? E/MainActivity: onStart
02-23 12:08:31.162 10574-10574/? E/MainActivity: onResume
5>自动被系统销毁的过程: onPause-> onSaveInstanceState-> onStop-onDestroy
02-23 14:12:22.917 18626-18626/com.example.zhujian.myapplication E/MainActivity: onPause
02-23 14:12:22.926 18626-18626/com.example.zhujian.myapplication E/MainActivity: onSaveInstanceState
02-23 14:12:22.936 18626-18626/com.example.zhujian.myapplication E/MainActivity: onStop
02-23 14:12:23.020 18626-18626/com.example.zhujian.myapplication E/MainActivity: onDestroy
6>被系统销毁后再次启动过程onCreate(可以获取onSaveInstanceState的值)-> onStart-> onResume
02-23 14:14:25.039 21418-21418/com.example.zhujian.myapplication E/MainActivity: onCreate
02-23 14:14:25.039 21418-21418/com.example.zhujian.myapplication E/MainActivity: onCreate->savedInstanceState:1
02-23 14:14:25.040 21418-21418/com.example.zhujian.myapplication E/MainActivity: onStart
02-23 14:14:25.045 21418-21418/com.example.zhujian.myapplication E/MainActivity: onResume
2. Service的生命周期
1>第一次启动过程onCreate-> onStartCommand
02-23 15:31:11.822 29063-29063/com.example.zhujian.myapplication E/MyService: onCreate
02-23 15:31:11.843 29063-29063/com.example.zhujian.myapplication E/MyService: onStartCommand
2>重复启动过程onStartCommand
02-23 15:31:24.327 29063-29063/com.example.zhujian.myapplication E/MyService: onStartCommand
3>自停止过程onDestroy
02-23 15:34:20.252 29063-29063/com.example.zhujian.myapplication E/MyService: onDestroy
4>国产手机后台kill进程,不能监控到onDestroy
5>自动被系统杀掉的过程(不保留后台活动模拟)
Service不会被杀
6>初次bindService的过程 onCreate-> onBind ->onServiceConnected
02-23 17:17:42.576 25290-25290/com.example.zhujian.myapplication E/MyService: onCreate
02-23 17:17:42.577 25290-25290/ com.example.zhujian.myapplication E/MyService: onBind
02-23 17:17:42.582 25290-25290/com.example.zhujian.myapplication E/MainActivity: onServiceConnectedcom.example.zhujian.myapplication.MyService-2032822464
7>重复bindService过程 onBind 不会重复执行
8>无启动startService动作(即无onStartCommand执行)的unbindService过程 onUnbind-> onDestroy
02-23 17:22:04.359 25290-25290/com.example.zhujian.myapplication E/MyService: onUnbind
02-23 17:22:04.359 25290-25290/com.example.zhujian.myapplication E/MyService: onDestroy
9>有启动startService动作的unbindService过程,只有onUnbind,不会执行onDestroy
02-23 17:23:58.888 25290-25290/com.example.zhujian.myapplication E/MyService: onUnbind
