获取android 系统音量

来源：互联网发布：特别好的句子知乎编辑：程序博客网时间：2024/05/17 01:34

audioManager = (AudioManager) activity.getSystemService(Context.AUDIO_SERVICE);//获取音频管理器videoMaxVolume = audioManager.getStreamMaxVolume(AudioManager.STREAM_MUSIC);//获取最大音量

volume = audioManager.getStreamVolume(AudioManager.STREAM_MUSIC);//获取当前音量

// 变更声音audioManager.setStreamVolume(AudioManager.STREAM_MUSIC, index, 0);

一段滑动改变音量的代码

private void onVolumeSlide(float percent) {        if (volume == -1) {            volume = audioManager.getStreamVolume(AudioManager.STREAM_MUSIC);            if (volume < 0)                volume = 0;        }        hide(true);        int index = (int) (percent * videoMaxVolume) + volume;        if (index > videoMaxVolume)            index = videoMaxVolume;        else if (index < 0)            index = 0;        // 变更声音        audioManager.setStreamVolume(AudioManager.STREAM_MUSIC, index, 0);        // 变更进度条        int i = (int) (index * 1.0 / videoMaxVolume * 100);        String s = i + "%";        // 显示        $.id(R.id.video_img_tip).image(R.mipmap.volume_up);        $.id(R.id.ll_volume_brightness_tip).visible();        $.id(R.id.video_tv_tip).text(s).visible();    }

阅读全文

0 0