3回答

• 

  有泪的光

  2017-10-11 17:26:02

  private  void changeVolume(float detlaY){
     int max = audioManager.getStreamMaxVolume(AudioManager.STREAM_MUSIC);//获得最大音量
     int current = audioManager.getStreamVolume(AudioManager.STREAM_MUSIC);//获取当前音量
  
     int index = (int) (detlaY/screen_height*max*3);
     int volume = Math.max(current+index,0);
     audioManager.setStreamVolume(AudioManager.STREAM_MUSIC,volume,0);
     volume_seek.setProgress(volume);
  }
  private void changeBrightness(float detlaY){
     WindowManager.LayoutParams attributes = getWindow().getAttributes();
     mBrightness = attributes.screenBrightness;//获得当前屏幕的亮度
     float index = detlaY/screen_height/3;
     mBrightness += index;
     if(mBrightness > 1.0f){
         mBrightness = 1.0f;
     }
     if (mBrightness < 0.01f){
         mBrightness = 0.01f;
     }
     attributes.screenBrightness = mBrightness;
     getWindow().setAttributes(attributes);
  }

  0 0
• 

  一个小屁孩儿

  2017-03-11 07:54:17

  copy神器用不了啦。。。。

  0 0
• 

  qq_和仙人掌握手_0

  2017-03-07 13:45:54

  我也在想这个问题
  

  0 1