我有一个侧滑菜单，使用UIScreenEdgePanGestureRecognizer来从屏幕边缘，由左至右滑动打开，由右至左滑动关闭。

现在的问题是，我从右至左快速滑动时（或者使用真机调试，手指从右向左，手机重新触碰屏幕边缘时），侧滑菜单就会停留在半打开的状态，这个时候检测不到if(sender.state == UIGestureRecognizerStateEnded).

我的代码如下:

self.panGesture = [[UIScreenEdgePanGestureRecognizer alloc] initWithTarget:self action:@selector(panGestureDo:)];

-(void)panGestureDo:(UIScreenEdgePanGestureRecognizer *)sender{
// NSLog(@"%ld",(long)sender.state);

if(sender.state == UIGestureRecognizerStateBegan){
    self.startLocation = [sender locationInView:self.view];
}

self.currentLocation = [sender locationInView:self.view];
CGFloat distance = self.startLocation.x - self.currentLocation.x;

if(distance < 0){
    [self.mainView addSubview:self.blurEffectView];
    [self.blurEffectView addGestureRecognizer:self.tapGesture];
    self.blurEffectView.alpha = (-distance)/100;
    self.leftMenu.frame = CGRectMake(self.view.frame.origin.x, self.view.frame.origin.y, self.leftMenuWidth, self.view.frame.size.height);
    self.mainView.frame =CGRectMake(self.view.frame.origin.x - distance, self.view.frame.origin.y, self.view.frame.size.width, self.view.frame.size.height);

    if (self.mainView.frame.origin.x > 97) {
        self.mainView.frame =CGRectMake(self.view.frame.origin.x + self.leftMenuWidth, self.view.frame.origin.y, self.view.frame.size.width, self.view.frame.size.height);
        [self openMenuHalfAnimation];
    }

    if (self.mainView.frame.origin.x < 3) {
        self.mainView.frame =CGRectMake(self.view.frame.origin.x, self.view.frame.origin.y, self.view.frame.size.width, self.view.frame.size.height);
        [self closeMenuHalfAnimation];
    }
        if(sender.state == UIGestureRecognizerStateEnded){

        //当手势结束时，判断侧滑菜单的位置，自动打开或者关闭。
        //但是当从右向左滑动速度过快，就不会进入这个if条件里面。

            NSLog(@"UIGestureRecognizerStateEnded");
            if (self.mainView.frame.origin.x > 50) {
                [self openMenuHalfAnimation];
            }else{
                [self closeMenuHalfAnimation];
            }

        }
        
        //下面的我都试过，检测不到滑动过快的情况。
        if(sender.state == UIGestureRecognizerStateCancelled){
            NSLog(@"UIGestureRecognizerStateCancelled");
        }
        if(sender.state == UIGestureRecognizerStateFailed){
            NSLog(@"UIGestureRecognizerStateFailed");
        }
        if(sender.state == UIGestureRecognizerStatePossible){
            NSLog(@"UIGestureRecognizerStatePossible");
        }
//        if(sender.state == UIGestureRecognizerStateChanged){
//            NSLog(@"UIGestureRecognizerStateChanged");
//        }
        if(sender.state == UIGestureRecognizerStateBegan){
            NSLog(@"UIGestureRecognizerStateBegan");
        }
        if(sender.state == UIGestureRecognizerStateRecognized){
            NSLog(@"UIGestureRecognizerStateRecognized");
        }
    }
}

我还尝试过这些，但是都没有被调用。

-(void)touchesEnded:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{
    NSLog(@"touches end");
}

-(void)touchesCancelled:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{
    NSLog(@"touches canceled");
}