adb shell am 的用法

adb shell am 的功能
adb shell am 使用此命令可以从cmd控制台启动 activity, services；发送 broadcast等等：
C:\Users\Administrator>adb shell am
usage: am [subcommand] [options]

    start an Activity: am start [-D] [-W]
        -D: enable debugging
        -W: wait for launch to complete

    start a Service: am startservice

    send a broadcast Intent: am broadcast

    start an Instrumentation: am instrument [flags]
        -r: print raw results (otherwise decode REPORT_KEY_STREAMRESULT)
        -e : set argument to
        -p : write profiling data to
        -w: wait for instrumentation to finish before returning

    start profiling: am profile start
    stop profiling: am profile stop

    start monitoring: am monitor [--gdb ]
        --gdb: start gdbserv on the given port at crash/ANR

    specifications include these flags:
        [-a ] [-d ] [-t ]
        [-c [-c ] ...]
        [-e|--es ...]
        [--esn ...]
        [--ez ...]
        [-e|--ei ...]
        [-n ] [-f ]
        [--grant-read-uri-permission] [--grant-write-uri-permission]
        [--debug-log-resolution]
        [--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]
        [--receiver-registered-only] [--receiver-replace-pending]
        []

使用实例：如启动一个 Activity：
格式： 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,等）。实例1： C:\Users\Administrator>adb shell am start -n com.android.camera/.Camera
Starting: Intent { cmp=com.android.camera/.Camera }
实例2：（带extra 的 intent） C:\Users\Administrator>adb shell am start -n com.android.camera/.Camera -e abc hello
Starting: Intent { cmp=com.android.camera/.Camera (has extras) } 其中 extra 的 key 为 abc ,value 为字串 "hello"
还可以发送命令模拟手机低电环境：

实例：

adb shell am broadcast -a android.intent.action.BATTERY_CHANGED --ei "level" 3 --ei "scale" 100

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