用命令打开android应用

在开发android应用过程中，往往需要做一些压力测试，这通常需要写一些脚本来完成，这样我们就不需要时时刻刻的操作手机。因此往往需要用命令打开我们的应用。

使用的命令是　

adb shell am

使用此命令可以从cmd控制台启动 activity, services；发送 broadcast 等等。

下面是其详细的参数解释：

vincent@vincent:~/work/imx214$ adb shell amusage: am [subcommand] [options]usage: am start [-D] [-W] [-P <FILE>] [--start-profiler <FILE>]               [--R COUNT] [-S] [--opengl-trace]               [--user <USER_ID> | current] <INTENT>       am startservice [--user <USER_ID> | current] <INTENT>       am stopservice [--user <USER_ID> | current] <INTENT>       am force-stop [--user <USER_ID> | all | current] <PACKAGE>       am kill [--user <USER_ID> | all | current] <PACKAGE>       am kill-all       am broadcast [--user <USER_ID> | all | current] <INTENT>       am instrument [-r] [-e <NAME> <VALUE>] [-p <FILE>] [-w]               [--user <USER_ID> | current]               [--no-window-animation] <COMPONENT>       am profile start [--user <USER_ID> current] <PROCESS> <FILE>       am profile stop [--user <USER_ID> current] [<PROCESS>]       am dumpheap [--user <USER_ID> current] [-n] <PROCESS> <FILE>       am set-debug-app [-w] [--persistent] <PACKAGE>       am clear-debug-app       am monitor [--gdb <port>]       am hang [--allow-restart]       am restart       am idle-maintenance       am screen-compat [on|off] <PACKAGE>       am to-uri [INTENT]       am to-intent-uri [INTENT]       am switch-user <USER_ID>       am stop-user <USER_ID>       am stack create <TASK_ID> <RELATIVE_STACK_BOX_ID> <POSITION> <WEIGHT>       am stack movetask <TASK_ID> <STACK_ID> [true|false]       am stack resize <STACK_ID> <WEIGHT>       am stack boxes       am stack box <STACK_BOX_ID>am start: start an Activity.  Options are:    -D: enable debugging    -W: wait for launch to complete    --start-profiler <FILE>: start profiler and send results to <FILE>    -P <FILE>: like above, but profiling stops when app goes idle    -R: repeat the activity launch <COUNT> times.  Prior to each repeat,        the top activity will be finished.    -S: force stop the target app before starting the activity    --opengl-trace: enable tracing of OpenGL functions    --user <USER_ID> | current: Specify which user to run as; if not        specified then run as the current user.am startservice: start a Service.  Options are:    --user <USER_ID> | current: Specify which user to run as; if not        specified then run as the current user.am stopservice: stop a Service.  Options are:    --user <USER_ID> | current: Specify which user to run as; if not        specified then run as the current user.am force-stop: force stop everything associated with <PACKAGE>.    --user <USER_ID> | all | current: Specify user to force stop;        all users if not specified.am kill: Kill all processes associated with <PACKAGE>.  Only kills.  processes that are safe to kill -- that is, will not impact the user  experience.    --user <USER_ID> | all | current: Specify user whose processes to kill;        all users if not specified.am kill-all: Kill all background processes.am broadcast: send a broadcast Intent.  Options are:    --user <USER_ID> | all | current: Specify which user to send to; if not        specified then send to all users.    --receiver-permission <PERMISSION>: Require receiver to hold permission.am instrument: start an Instrumentation.  Typically this target <COMPONENT>  is the form <TEST_PACKAGE>/<RUNNER_CLASS>.  Options are:    -r: print raw results (otherwise decode REPORT_KEY_STREAMRESULT).  Use with        [-e perf true] to generate raw output for performance measurements.    -e <NAME> <VALUE>: set argument <NAME> to <VALUE>.  For test runners a        common form is [-e <testrunner_flag> <value>[,<value>...]].    -p <FILE>: write profiling data to <FILE>    -w: wait for instrumentation to finish before returning.  Required for        test runners.    --user <USER_ID> | current: Specify user instrumentation runs in;        current user if not specified.    --no-window-animation: turn off window animations while running.am profile: start and stop profiler on a process.  The given <PROCESS> argument  may be either a process name or pid.  Options are:    --user <USER_ID> | current: When supplying a process name,        specify user of process to profile; uses current user if not specified.am dumpheap: dump the heap of a process.  The given <PROCESS> argument may  be either a process name or pid.  Options are:    -n: dump native heap instead of managed heap    --user <USER_ID> | current: When supplying a process name,        specify user of process to dump; uses current user if not specified.am set-debug-app: set application <PACKAGE> to debug.  Options are:    -w: wait for debugger when application starts    --persistent: retain this valueam clear-debug-app: clear the previously set-debug-app.am bug-report: request bug report generation; will launch UI    when done to select where it should be delivered.am monitor: start monitoring for crashes or ANRs.    --gdb: start gdbserv on the given port at crash/ANRam hang: hang the system.    --allow-restart: allow watchdog to perform normal system restartam restart: restart the user-space system.am idle-maintenance: perform idle maintenance now.am screen-compat: control screen compatibility mode of <PACKAGE>.am to-uri: print the given Intent specification as a URI.am to-intent-uri: print the given Intent specification as an intent: URI.am switch-user: switch to put USER_ID in the foreground, starting  execution of that user if it is currently stopped.am stop-user: stop execution of USER_ID, not allowing it to run any  code until a later explicit switch to it.am stack create: create a new stack relative to an existing one.   <TASK_ID>: the task to populate the new stack with. Must exist.   <RELATIVE_STACK_BOX_ID>: existing stack box's id.   <POSITION>: 0: before <RELATIVE_STACK_BOX_ID>, per RTL/LTR configuration,               1: after <RELATIVE_STACK_BOX_ID>, per RTL/LTR configuration,               2: to left of <RELATIVE_STACK_BOX_ID>,               3: to right of <RELATIVE_STACK_BOX_ID>,               4: above <RELATIVE_STACK_BOX_ID>, 5: below <RELATIVE_STACK_BOX_ID>   <WEIGHT>: float between 0.2 and 0.8 inclusive.am stack movetask: move <TASK_ID> from its current stack to the top (true) or   bottom (false) of <STACK_ID>.am stack resize: change <STACK_ID> relative size to new <WEIGHT>.am stack boxes: list the hierarchy of stack boxes and their contents.am stack box: list the hierarchy of stack boxes rooted at <STACK_BOX_ID>.<INTENT> specifications include these flags and arguments:    [-a <ACTION>] [-d <DATA_URI>] [-t <MIME_TYPE>]    [-c <CATEGORY> [-c <CATEGORY>] ...]    [-e|--es <EXTRA_KEY> <EXTRA_STRING_VALUE> ...]    [--esn <EXTRA_KEY> ...]    [--ez <EXTRA_KEY> <EXTRA_BOOLEAN_VALUE> ...]    [--ei <EXTRA_KEY> <EXTRA_INT_VALUE> ...]    [--el <EXTRA_KEY> <EXTRA_LONG_VALUE> ...]    [--ef <EXTRA_KEY> <EXTRA_FLOAT_VALUE> ...]    [--eu <EXTRA_KEY> <EXTRA_URI_VALUE> ...]    [--ecn <EXTRA_KEY> <EXTRA_COMPONENT_NAME_VALUE>]    [--eia <EXTRA_KEY> <EXTRA_INT_VALUE>[,<EXTRA_INT_VALUE...]]    [--ela <EXTRA_KEY> <EXTRA_LONG_VALUE>[,<EXTRA_LONG_VALUE...]]    [--efa <EXTRA_KEY> <EXTRA_FLOAT_VALUE>[,<EXTRA_FLOAT_VALUE...]]    [-n <COMPONENT>] [-f <FLAGS>]    [--grant-read-uri-permission] [--grant-write-uri-permission]    [--debug-log-resolution] [--exclude-stopped-packages]    [--include-stopped-packages]    [--activity-brought-to-front] [--activity-clear-top]    [--activity-clear-when-task-reset] [--activity-exclude-from-recents]    [--activity-launched-from-history] [--activity-multiple-task]    [--activity-no-animation] [--activity-no-history]    [--activity-no-user-action] [--activity-previous-is-top]    [--activity-reorder-to-front] [--activity-reset-task-if-needed]    [--activity-single-top] [--activity-clear-task]    [--activity-task-on-home]    [--receiver-registered-only] [--receiver-replace-pending]    [--selector]    [<URI> | <PACKAGE> | <COMPONENT>]

其操作实例如下：

adb shell am start -n 包名/包名＋类名（-n 类名,-a action,-d date,-m MIME-TYPE,-c category,-e 扩展数据,

但是我们如何才能知道其包名跟类名呢？

可以通过下面的办法：

adb logcat | grep ActivityManager 

在本实例中我打开的camera应用，因此可以看到下面的log信息：

 I/ActivityManager( 1097): START u0 {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=<span style="color:#FF0000;">com.android.camera2/com.android.camera.CameraActivity</span> bnds=[212,1776][340,1904]} from pid 1395

上面标红的即为其包名和类名：

vincent@vincent:~$　adb shell am start -W -n com.android.camera2/com.android.camera.CameraActivityStarting: Intent { cmp=com.android.camera2/com.android.camera.CameraActivity }Status: okActivity: com.android.camera2/com.android.camera.CameraActivityThisTime: 505TotalTime: 505Complete