亚行命令来设置音量？ [英] ADB Command to set volume?

问题描述

有没有亚行命令，将音量设置为一个特定的值？我知道，我们可以做

Is there any Adb command to set the volume to a particular value? I know that we can do

adb shell input keyevent 

有关音量上下，但我想将它设置为一个特定的值。如果我改变它数据库，然后我不得不重新启动设备，使更改反映，所以我不想去这条道路。是不是有什么API，我可以改变的价值，而无需重新启动它，不得不依赖于音量上下？

for volume up and down but i want to set it to a particular value. If I change it it DB then I have to reboot the device for the changes to be reflected so i do not want to go that path. Isn't there any API where I can change the value without having to restart it and having to be dependent on Volume up and Down?

推荐答案

在一个有根的电话，你可以打电话 setMasterVolume（）与服务呼叫音频＆LT; code取代; I32＆LT;体积GT; 。 C $ CS中的$是特定版本。比方说，你想一个奇巧设备上设置音量为50％。该命令将是：

On a rooted phone you can call setMasterVolume() with service call audio <code> i32 <volume>. The codes are version specific. Let's say you want to set volume to 50% on a KitKat device. The command will be:

service call audio 9 i32 50

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