android 7.0 中java代码关闭系统相关提示音

AudioManager mAudioManager = (AudioManager) this.getSystemService(this.AUDIO_SERVICE);

mAudioManager.unloadSoundEffects();

Settings.System.putInt(this.getContentResolver(), Settings.System.SOUND_EFFECTS_ENABLED, 0);

Settings.Global.putInt(this.getContentResolver(), Settings.Global.CHARGING_SOUNDS_ENABLED, 0);