iOS开发视频播放快进快退添加手势和调节亮度声音

1、AVPlayerLayer所在的控件添加一个UIPanGestureRecognizer手势
2、添加一个存储上一次拖拽位置的全局变量

///手指拖动上一次的值
///手指拖动上一次的X值
@property(nonatomic,assign)CGFloat preX;
///手指拖动上一次的Y值
@property(nonatomic,assign)CGFloat preY;

3、拖拽手势对应的代码实现

///拖拽手势
- (IBAction)panLeftAndRight:(UIPanGestureRecognizer *)sender {
    
    NSTimeInterval time = CMTimeGetSeconds(self.player.currentItem.currentTime);
    NSTimeInterval duration = CMTimeGetSeconds(self.player.currentItem.duration);
    
    if (sender.state == UIGestureRecognizerStateBegan) {
        
        [self.player pause];
        
        if (!self.isShowToolView) {
            [self removeShowTimer];
            
            [self tapClick:nil];
        }
        
    }else if (sender.state == UIGestureRecognizerStateChanged){
        
        CGPoint point = [sender translationInView:sender.view];
        
        CGPoint localPoint = [sender locationInView:sender.view];
        
//        NSLog(@"--->>%@",NSStringFromCGPoint(point));
        
        if (fabs(point.x) >= fabs(point.y)) {//移动的时候如果x坐标的差值大于y坐标,处理快进快退
            
            CGFloat ratio = (point.x - self.preX) / self.imageView.bounds.size.width;
            
            if (time <= 0) return;
            
            time += ratio * duration;
            
            [self swipeIsRight:time];
        }else{
             CGFloat lightRatio = (point.y - self.preY) / self.imageView.bounds.size.height;

            if (localPoint.x > self.imageView.bounds.size.width * 0.5) {//如果触摸点在屏幕的右边调整音量
//                NSLog(@"移动的时候如果x坐标的差值小于y坐标,并且在屏幕的右边--%lf",localPoint.x);
                MPMusicPlayerController *mpc = [MPMusicPlayerController applicationMusicPlayer];
                mpc.volume -= lightRatio;
                
            }else{//如果触摸点在屏幕的左边调整亮度
//                NSLog(@"移动的时候如果x坐标的差值小于y坐标,并且在屏幕的左边");
                
                //获取亮度
                CGFloat brightess = [[UIScreen mainScreen] brightness];
                
                brightess -= lightRatio;
                //设置亮度
                [[UIScreen mainScreen] setBrightness:brightess];
                
            }
            
        }
        
        
        self.preX = point.x;
        
        self.preY = point.y;
        
    }else if (sender.state == UIGestureRecognizerStateEnded){
        
        [self.player play];
        
        self.preX = 0;
        self.preY = 0;
        if (self.isShowToolView) {
            [self removeShowTimer];
            [self addShowTimer];
        }
    }
}
///左右滑动快进后退
-(void)swipeIsRight:(NSTimeInterval)time
{
    //更新播放器的当前时间
    [self.player seekToTime:CMTimeMakeWithSeconds(time, NSEC_PER_SEC) toleranceBefore:kCMTimeZero toleranceAfter:kCMTimeZero];
    //更新进度条和展示时间
    [self updateUIConfig];
    
}

4、效果图

image.png
5、demo地址：https://gitee.com/flynn0129/avplayer-video-playback