滚动视图滚动时如何调用uipangesture？

Question

我想通过UIScrollView更改UIPanGestureRecognizer'中心。滚动视图垂直滚动。我横向平移它。问题是当scrollview还在滚动时如何检测UIPanGestureRecognizer ??? 提前谢谢！

Answer 1

修改：您可以自定义UIScrollView并覆盖此方法：

#import "MyScrollView.h"

@implementation MyScrollView

- (BOOL)touchesShouldCancelInContentView:(UIView *)view
{
    return YES;
}

@end

---

self.panGesture = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(handlePan:)];
self.panGesture.delegate = self;
[self.view addGestureRecognizer:self.panGesture];

- (void)handlePan:(UIGestureRecognizer *)gestureRecognizer
{
    if (gestureRecognizer.state == UIGestureRecognizerStateEnded) {
        CGPoint offset = self.scrollView.contentOffset;
        offset.y = self.scrollView.contentSize.height/2;
        self.scrollView.contentOffset = offset;
    }
}

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch
{
    return YES;
}