First, open Activity, services, broadcasting
1. Open Activity, services, broadcast basics
By adb shell, can use the activity manager (arm) tools to perform various system operations, such as opening a Action, Activity an open, a thread is forced to stop, and the like to modify properties of the screen device, adb shell command format is as follows:
am [subcommand] [options]Commands List:
| command | Features | Implementation |
|---|---|---|
am start [options] <INTENT> |
Start Activity | startActivityAsUser |
at the start service <INTENT> |
Start Service | start service |
am stopservice <INTENT> |
Stop Service | stop service |
am broadcast <INTENT> |
Send broadcast | broadcastIntent |
am kill <PACKAGE> |
Kill background processes specified | killBackgroundProcesses |
| am kill-all | Kill all background processes | killAllBackgroundProcesses |
am force-stop <PACKAGE> |
Strong kill process | forceStopPackage |
| am hang | Jamming system | hang |
| am restart | Restart | restart |
| am bug-report | Create a bugreport | requestBugReport |
am dumpheap <pid> <file> |
Heap information output process pid to file | Dumfeap |
am send-trim-memory <pid> <level> |
Tightening process memory | setProcessMemoryTrimLevel |
| am monitor | monitor | MyActivityController.run |
am real implementations in order Am.java , almost all the final call ActivityManagerServicethe corresponding methods to complete, am monitorexcept. For example, the command am start -a android.intent.action.VIEW -d http://gityuan.comto start the Acitivty final call is ActivityManagerService class startActivityAsUser () method to complete. Another example is am kill-alla command, the final implementation work by ActivityManagerService the killBackgroundProcesses () to complete the process.
Next, talk about [options] and <INTENT> significance parameters and how to correct the value.
1)intent
intent will be appreciated that different components of the media or the messenger communication;
intent can start an Activity, you can also start a Service, good can initiate a broadcast Broadcast
By intent, your program can be as Android or express a willingness request, Android will select the appropriate components to complete the request in accordance with the wishes of content
| Intent |
Explanation |
Am parameters [options] |
| component | Component Name format: package name / class name | -n |
| action | Intent to perform the action specified, such as call dial phone components | -a |
| data_url | It denotes the operation of data manipulation to be | -d |
| category | categary is a string that provides additional information about the type of component capable of processing the object Intent | -c |
| extra | Intent to pass additional data, the definition of the form of the Bundle, that some key-value pairs | -e |
| mime_type | MIME type | -t |
| flags | Various types of flag, many Android system is used to specify how to start activity, as well as how to deal with him after the start of the activity | -f |
| package | Package names | -p |
So (1) Call 10086
am start -a android.intent.action.CALL -d tel:10086(2) Open sitewww.gityuan.com
am start -a android.intent.action.VIEW -d http://gityuan.com(3) Activity Start: start package name com.yuanhh.app, as the main Activity .MainActivity, and extra data "website" is a key, "yuanh.com" to value. By java code to perform this function, although not complex, but requires at least one android environment through adb manner requiring only adb window, enter the following command can be completed:
am start -n com.yuanhh.app/.MainActivity -es website gityuan.com2) Start Activity ??? following did not understand, and then to add other practical.
# Start interface adb shell am start [parameters] <INTENT>
| parameter |
Explanation |
| -D | Turn on debug mode |
| -W | Wait for the completion of startup |
| --start-profile <file> | Beginning analyzer and sends the results (File) |
| --sampling INTERVAL | Sec: sample analysis using an interval between the sample (using the -start-profiler) |
| -P <FILE> | After the application is idle down, stop profile |
| -R COUNT | Duplication of activities launched <count> times. Before each repetition, activities will end |
| -S | Organize activities before the start of the target application |
| --opengl-trace | Enable tracing OpenGL functions |
| [—user <USER_ID> | current] | Specify which users run, if not specified, the current user |
3) Starting and stopping services
#启动服务 adb shell am startservice [参数] <INTENT> #停止服务 am stopservice [参数] <INTENT>
| 参数 | 说明 |
| --user <USER_ID> | current | 指定哪些用户运行，如果不指定则使用当前用户 |
4）启动广播
#启动广播 am broadcast [参数] <INTENT>
| 参数 | 说明 |
| --user <USER_ID> | current | 指定哪些用户运行，如果不指定则使用当前用户 |
二、内存与进程操作
1.内存操作
获取heap文件：adb shell am dumpheap [参数] <process>
| 参数 | 说明 |
| --user <USER_ID> | current | 指定哪些用户运行，如果不指定则使用当前用户 |
| -n | 获取native heap而不是managed heap |
例如：
adb shell am dumpheap com.android.browser /data/local/tmp/test.hprof
#获取内存快照（后缀名必需为.hprof）
使用adb pull /data/local/tmp/test.hprof e:\命令将testr.hprof文件保存到电脑本地
使用命令：hprof-conv e:\test.hprof e:\test1.hprof进行文件转化
然后就可以使用mat工具对内存进行查看分析
2.进程操作
adb shell am force-stop [参数] <process>
#强制停止应用（process=包名）
adb shell am kill [参数] <process>
#停止后台单个进程
adb shell am kill-all
#停止后台所进程
三、调试相关操作
1.性能相关
截图来自极客学院
Traceview是android平台配备一个很好的性能分析的工具。它可以通过图形化的方式让我们了解我们要跟踪的程序的性能，并且能具体到method。
