private void restoreMasterVolume() {
if (mUseFixedVolume) {
AudioSystem.setMasterVolume(1.0f);
return;
}
if (mUseMasterVolume) {
float volume = Settings.System.getFloatForUser(mContentResolver, //修改0.5f参数,值越大,显示的结果越大,通常最大的显示为1.0f Settings.System.VOLUME_MASTER, 0.5f, UserHandle.USER_CURRENT);
AudioSystem.setMasterVolume(volume);
//MStar Android Patch end
}
} 改代码的路径为:framework/base/media/Java/Android/media/AudioService.java
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