adb shell am 的功能

C:\Users\Administrator>adb shell am
usage: am [subcommand] [options]

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

start a Service: am startservice <INTENT>

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

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

<INTENT> specifications include these flags:
[-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> ...]
[-e|--ei <EXTRA_KEY> <EXTRA_INT_VALUE> ...]
[-n <COMPONENT>] [-f <FLAGS>]
[--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]
[<URI>]

C:\Users\Administrator>adb shell am start -n com.android.camera/.Camera
Starting: Intent { cmp=com.android.camera/.Camera }

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"