android 常用命令解析 -- am

am命令作用：管理Activity
usage: am [start|broadcast|instrument|profile]       
       am start -D INTENT       
       am broadcast INTENT       
       am instrument [-r] [-e <ARG_NAME> <ARG_VALUE>] [-p <PROF_FILE>]                     
       [-w] <COMPONENT>        
       am profile <PROCESS> [start <PROF_FILE>|stop]                
       INTENT is described with:              
         [-a <ACTION>] [-d <DATA_URI>] [-t <MIME_TYPE>]              
         [-c <CATEGORY> [-c <CATEGORY>] ...]              
         [-e|--es <EXTRA_KEY> <EXTRA_STRING_VALUE> ...]              
         [--ez <EXTRA_KEY> <EXTRA_BOOLEAN_VALUE> ...]              
         [-e|--ei <EXTRA_KEY> <EXTRA_INT_VALUE> ...]              
         [-n <COMPONENT>]    [-f <FLAGS>]    [<URI>]
The start command starts activity. Use -D option to make 'DebugOption' true.
The broadcast command sends broadcast.
The instrument command starts instrumentation. 
Use -r option to make 'rawMode' true. 
Use -e option to add the pair of ARG_NAME and  ARG_VALUE into Bundle. 
Use -p option to specify profileFile.
Use -w option to make 'wait' true in order to new an instance of InstrumentationWatcher. 
Use COMPONENT to specify the name of the instrumentation component.
The profile command turn on/off profiling in a particular process specified by PROCESS.
Use start option to turn on and stop to turn off.Use PROF_FILE to specify the file path of profile. 
Use -a to set action specified by ACTION to be performed.
Use -d to create a Uri(data) which parses the given encoded URI string DATA_URI.
Use -t to specify the type specified by MIME_TYPE. Use -c to add a new category specified by
CATEGORY to the intent.
Use -e or --es to add extended data to the intent.EXTRA_KEY specifies the name of the extra data and
EXTRA_STRING_VALUE specifies the string data value.
Use --ez to add extended data to the intent. EXTRA_KEY specifies the name of the extra data and
EXTRA_BOOLEAN_VALUE specifies the serializable data value.
Use -e or --ei to add extended data to the intent. EXTRA_KEY specifies the name of the extra data and
EXTRA_INT_VALUE specifies the serializable data value.
Use -n to explicitly set the component specified by COMPONENT to handle the intent.
Use -f to set special flags controlling how this intent is handled.FLAGS specifies the desired flags.
Use URI to create an intent from a URI.
在Android中，除了从界面上启动程序之外，还可以从命令行启动程序，使用的是命令行工具am.
usage: am [subcommand] [options]
    start an Activity: am start [-D] <INTENT>
        -D: enable debugging
    send a broadcast Intent: am broadcast <INTENT>
    start an Instrumentation: am instrument [flags] <COMPONENT>
        -r: print raw results (otherwise decode REPORT_KEY_STREAMRESULT)
        -e <NAME> <VALUE>: set argument <NAME> to <VALUE>
        -p <FILE>: write profiling data to <FILE>
        -w: wait for instrumentation to finish before returning
    start profiling: am profile <PROCESS> start <FILE>
    stop profiling: am profile <PROCESS> stop
    <INTENT> specifications include these flags:
        [-a <ACTION>] [-d <DATA_URI>] [-t <MIME_TYPE>]
        [-c <CATEGORY> [-c <CATEGORY>] ...]
        [-e|--es <EXTRA_KEY> <EXTRA_STRING_VALUE> ...]
        [--ez <EXTRA_KEY> <EXTRA_BOOLEAN_VALUE> ...]
        [-e|--ei <EXTRA_KEY> <EXTRA_INT_VALUE> ...]
        [-n <COMPONENT>] [-f <FLAGS>] [<URI>]
启动的方法为
# am start -n 包(package)名/包名.活动(activity)名称
启动的方法可以从每个应用的AndroidManifest.xml的文件中得到
Music 和 Video（音乐和视频）的启动方法为：
# am start -n com.android.music/com.android.music.MusicBrowserActivity
# am start -n com.android.music/com.android.music.VideoBrowserActivity
# am start -n com.android.music/com.android.music.MediaPlaybackActivity
Camera（照相机）的启动方法为：
# am start -n com.android.camera/com.android.camera.Camera
Browser（浏览器）的启动方法为：
# am start -n com.android.browser/com.android.browser.BrowserActivity
启动浏览器 :
am start -a android.intent.action.VIEW -d  http://www.google.cn/ 拨打电话 :
am start -a android.intent.action.CALL -d tel:10086
启动 google map 直接定位到北京 :
am start -a android.intent.action.VIEW geo:0,0?q=beijing
 
其他例子：
am start -n com.android.calibrate/.AndroidCalibrate
am start -n com.android.soundrecorder/.SoundRecorder