svc命令

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什么是svc命令

svc是Android的一个脚本命令，在/system/bin目录下，我们通过cat命令可查看其详细信息：

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caigandeMacBook-Pro:~ lcg$ adb shell cat /system/bin/svc
# Script to start "am" on the device, which has a very rudimentary
# shell.
#
base=/system
export CLASSPATH=$base/framework/svc.jar
exec app_process $base/bin com.android.commands.svc.Svc $*

通过-h参数可查看所有命令：

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caigandeMacBook-Pro:~ lcg$ adb shell svc -h
Available commands:
    help     Show information about the subcommands
    power    Control the power manager
    data     Control mobile data connectivity
    wifi     Control the Wi-Fi manager
    usb      Control Usb state

svc power:控制电源管理

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shell@mx2:/ $ svc power -h
Control the power manager

usage: svc power stayon [true|false|usb|ac|wireless]
         Set the 'keep awake while plugged in' setting.
       svc power reboot [reason]
         Perform a runtime shutdown and reboot device with specified reason.
       svc power shutdown
         Perform a runtime shutdown and power off the device.

svc power stayon [true|false|usb|ac|wireless]: 设置保持唤醒状态
1.true:常亮，相当于设置了所有标记(usb, ac, wireless)
2.false：清除所有标记
3.usb:插入usb时常亮
4.ac:充电时常亮
5.wireless：无线充电时常亮
当设置usb/ac/wireless其中一个标记时，会清除其余标记

svc power reboot [reason]: 设置设备在特定条件下关机并重启

svc power shutdown: 设置设备关机

svc data:控制设备数据连接

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shell@mx2:/ $ svc data -h
Control mobile data connectivity

usage: svc data [enable|disable]
         Turn mobile data on or off.

svc data [enable|disable]:控制设备数据连接开与关

svc wifi:控制wifi管理

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shell@mx2:/ $ svc wifi -h
Control the Wi-Fi manager

usage: svc wifi [enable|disable]
         Turn Wi-Fi on or off.

svc wifi [enable|disable]:控制wifi开与关

svc usb:控制usb状态

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shell@mx2:/ $ svc usb -h
Control Usb state

usage: svc usb setFunction [function]
         Set the current usb function.

       svc usb getFunction
          Gets the list of currently enabled functions

svc usb setFunction [function]:设置当前USB功能
其中［function］包括：mtp,adb等

svc usb getFunction:获取当前可用功能列表

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