Android音量控制调节

时间:2022-09-16 18:06:46

    //音量控制,初始化定义  
AudioManager mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
//最大音量
int maxVolume = mAudioManager.getStreamMaxVolume(AudioManager.STREAM_MUSIC);
//当前音量
int currentVolume = mAudioManager.getStreamVolume(AudioManager.STREAM_MUSIC);


直接控制音量的多少:

    if(isSilent){  
mAudioManager.setStreamVolume(AudioManager.STREAM_MUSIC, 0, 0);
}else{
mAudioManager.setStreamVolume(AudioManager.STREAM_MUSIC, tempVolume, 0); //tempVolume:音量绝对值
}



以一步步长控制音量的增减,并弹出系统默认音量控制条:

//降低音量,调出系统音量控制  
if(flag == 0){
mAudioManager.adjustStreamVolume(AudioManager.STREAM_MUSIC,AudioManager.ADJUST_LOWER,
AudioManager.FX_FOCUS_NAVIGATION_UP);
}
//增加音量,调出系统音量控制
else if(flag == 1){
mAudioManager.adjustStreamVolume(AudioManager.STREAM_MUSIC,AudioManager.ADJUST_RAISE,
AudioManager.FX_FOCUS_NAVIGATION_UP);
}