Android中视频屏幕左半部分上下滑动改变亮度右半部分上下滑动改变声音

2024-03-12 07:10:03 46

privatefloatstartY;//记录手指按下时的Y坐标 privatefloatstartX;//记录手指按下时的Y坐标 privateintdownVol;//记录手指按下时的音量 privateVibratorvibrator;//手机震动器 //不要忘记震动权限<uses-permissionandroid:name="android.permission.VIBRATE"/> /* *设置屏幕亮度lp=0全暗，lp=-1,根据系统设置，lp=1;最亮 */ publicvoidsetBrightness(floatbrightness){ WindowManager.LayoutParamslp=getWindow().getAttributes(); //if(lp.screenBrightness<=0.1){ //return; //} lp.screenBrightness=lp.screenBrightness+brightness/255.0f; if(lp.screenBrightness>1){ lp.screenBrightness=1; vibrator=(Vibrator)getSystemService(VIBRATOR_SERVICE); long[]pattern={10,200};//OFF/ON/OFF/ON...关闭10秒震动200毫秒，不停切换 vibrator.vibrate(pattern,-1); }elseif(lp.screenBrightness<0.2){ lp.screenBrightness=(float)0.2; vibrator=(Vibrator)getSystemService(VIBRATOR_SERVICE); long[]pattern={10,200};//OFF/ON/OFF/ON... vibrator.vibrate(pattern,-1); } getWindow().setAttributes(lp); } @Override publicbooleanonTouchEvent(MotionEventevent){ //把事件传递给手势识别器（注：对事件只进行了解析处理，没有拦截，解析成手势识别的单击、双击、长按） detector.onTouchEvent(event); switch(event.getAction()){ caseMotionEvent.ACTION_DOWN: startY=event.getY(); startX=event.getX(); downVol=audioManager.getStreamVolume(AudioManager.STREAM_MUSIC); handler.removeMessages(HIDE_CONTROL); break; caseMotionEvent.ACTION_MOVE: floatendY=event.getY(); floatdistanceY=startY-endY; if(startX>screenWidth/2){ //屏幕右半部分上滑，声音变大，下滑，声音变小 inttouchRang=Math.min(screenWidth,screenHeight); //intcurvol=(int)(downVol+(distance/screenHeight)*maxVolume); intcurvol=(int)(downVol+(distanceY/touchRang)*maxVolume);//考虑到横竖屏切换的问题 intvolume=Math.min(Math.max(0,curvol),maxVolume); updateVolume(volume); }else{ //屏幕左半部分上滑，亮度变大，下滑，亮度变小 finaldoubleFLING_MIN_DISTANCE=0.5; finaldoubleFLING_MIN_VELOCITY=0.5; if(distanceY>FLING_MIN_DISTANCE&&Math.abs(distanceY)>FLING_MIN_VELOCITY){ setBrightness(20); } if(distanceY<FLING_MIN_DISTANCE &&Math.abs(distanceY)>FLING_MIN_VELOCITY){ setBrightness(-20); } } break; caseMotionEvent.ACTION_UP: handler.sendEmptyMessageDelayed(HIDE_CONTROL,5000); break; } returnsuper.onTouchEvent(event); }

Android中 视频屏幕左半部分上下滑动改变亮度右半部分上下滑动改变声音

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Android中视频屏幕左半部分上下滑动改变亮度右半部分上下滑动改变声音