Android代码中媒体播放器的音量管理问题

发布于 2024-12-04 17:44:42 字数 708 浏览 1 评论 0原文

我正在一个具有选项卡活动的android选项卡中工作，我为每个选项卡制作了选项卡组，在一项活动中我有用于播放音频歌曲的媒体播放器。一切都很好，除了我无法控制媒体播放器的音量，也没有看到 Android 设备的音量控制对话框。这是我的代码，

mp=new MediaPlayer();
             mp.setWakeMode(getParent(), PowerManager.PARTIAL_WAKE_LOCK); //for powermanagement
    try {
                if(GlobalConfig.notInternet==true)
                {
                     mp.setDataSource("/sdcard/abc/"+file);
                }else{
                    mp.setDataSource(url2);
                }
                mp.prepare();

            } catch (IllegalArgumentException e1) {
                // TODO Auto-generated catch block
                e1.printStackTrace();
    }
    mp.start();

请帮助我。提前致谢

原文

I am working in an android tab which has tabs activities, I have made tab groups for every tabs, in one activity i have media player for playing audio song. everything is fine except
i cann't control the volume of media player and I am not seeing volume control dialog of android device. here is my code,

mp=new MediaPlayer();
             mp.setWakeMode(getParent(), PowerManager.PARTIAL_WAKE_LOCK); //for powermanagement
    try {
                if(GlobalConfig.notInternet==true)
                {
                     mp.setDataSource("/sdcard/abc/"+file);
                }else{
                    mp.setDataSource(url2);
                }
                mp.prepare();

            } catch (IllegalArgumentException e1) {
                // TODO Auto-generated catch block
                e1.printStackTrace();
    }
    mp.start();

please help me. thanks in advance

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清泪尽 2024-12-11 17:44:42

以下代码应用于管理媒体声音......

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

  //It gives max volume of ur device   

  int max_volume = mAudioManager.getStreamMaxVolume(AudioManager.STREAM_MUSIC);

  //It gives current volume of device

   int current_volume=mAudioManager.getStreamVolume(AudioManager.STREAM_MUSIC));
   //Here you can set volume 
   int progress=your set value;
   mAudioManager.setStreamVolume(AudioManager.STREAM_MUSIC,progress, 0);

The following code should be used to managing media sound...

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

  //It gives max volume of ur device   

  int max_volume = mAudioManager.getStreamMaxVolume(AudioManager.STREAM_MUSIC);

  //It gives current volume of device

   int current_volume=mAudioManager.getStreamVolume(AudioManager.STREAM_MUSIC));
   //Here you can set volume 
   int progress=your set value;
   mAudioManager.setStreamVolume(AudioManager.STREAM_MUSIC,progress, 0);

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