Android adb命令设置和获取系统音量

分手后的思念是犯贱 2022-12-11 03:21 1662阅读 0赞

1、查看audio的全部信息（各音频流音量，焦点，策略等）

dumpsys audio

2、设置音量并且显示音量UI

//stream 3表示多媒体，10表示音量值
    	media volume --show --stream 3 --set 10

3、音量调大调小

media volume --stream 3 --adj raise
    	media volume --stream 0 --adj lower
    	media volume --show --stream 3 --adj raise
    	media volume --show --stream 0 --adj lower

4、获取当前音量

media volume --stream 3 --get

5、直接调用Android接口设置音量

service call audio 7 i32 3 i32 10 i32 1

Here, the service call refers to IAudioService. Click here for more info.
    	7 is the function named setStreamVolume. It is the 7th in the list of functions in the interface IAudioService. Verify it here. (setStreamVolume takes 3 parameters streamType, index, flag)
    	i32 is to write the integer INT into the send parcel. (Alternatively we can make use of s16 for UTF-16 string)
    	3 is streamTypevalue. (Value 1 → phone, 3 → speaker, 4 → alarm, 6 → bluetooth)
    	1 is index value and 1 is flag value

参考文档：  
https://android.stackexchange.com/questions/124249/in-call-volume-root-modify?answertab=active\#tab-top  
https://android.googlesource.com/platform/frameworks/base/+/73e23e2/media/java/android/media/IAudioService.aidl  
6、控制播放暂停

media dispatch play
    	media dispatch pause

详细用法：

usage: media [subcommand] [options]
           media dispatch KEY
           media list-sessions
           media monitor <tag>
           media volume [options]
    
    media dispatch: dispatch a media key to the system.
                    KEY may be: play, pause, play-pause, mute, headsethook,
                    stop, next, previous, rewind, record, fast-forward.
    media list-sessions: print a list of the current sessions.
    media monitor: monitor updates to the specified session.
                           Use the tag from list-sessions.
    media volume:  the options are as follows:
                    --stream STREAM selects the stream to control, see AudioManager.STREAM_*
                                    controls AudioManager.STREAM_MUSIC if no stream is specified
                    --set INDEX     sets the volume index value
                    --adj DIRECTION adjusts the volume, use raise|same|lower for the direction
                    --get           outputs the current volume
                    --show          shows the UI during the volume change
            examples:
                    adb shell media volume --show --stream 3 --set 11
                    adb shell media volume --stream 0 --adj lower
                    adb shell media volume --stream 3 --get

参考文档：  
https://android.googlesource.com/platform/frameworks/base/+/android-5.1.1\_r1/cmds/media/src/com/android/commands/media/Media.java?autodive=0%2F%2F%2F%2F