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UIScrollView的左右滑动和侧滑手势冲突的解决办法
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转载自：https://blog.csdn.net/kst_123/article/details/77762811
当ViewController中添加了一个全屏的UIScrollView的时候，UIScrollView的左滑手势会和系统的左滑返回冲突，系统的左滑返回将会失效。解决办法如下：
自定义一个CustomScrollView继承于UIScrollView，然后重写一下gestureRecognizerShouldBegin方法。
左边侧滑：
- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer
{
CGPoint velocity = [(UIPanGestureRecognizer *)gestureRecognizer velocityInView:self];
CGPoint location = [gestureRecognizer locationInView:self]; if (velocity.x > 0.0f&&(int)location.x%(int)[UIScreen mainScreen].bounds.size.width<) {
return NO;
}
return YES;
}
右边侧滑：
- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer
{
CGPoint velocity = [(UIPanGestureRecognizer *)gestureRecognizer velocityInView:self];
CGPoint location = [gestureRecognizer locationInView:self]; if (velocity.x > 0.0f&&(int)location.x%(int)[UIScreen mainScreen].bounds.size.width>[UIScreen mainScreen].bounds.size.width-) {
return NO;
}
return YES;
}
奉上一个自定义的UIScrollView的代码：
DXCustomScrollView.h
#import <UIKit/UIKit.h>@interface DXCustomScrollView : UIScrollView@end
DXCustomScrollView.m
#import "DXCustomScrollView.h"@interface DXCustomScrollView()@end@implementation DXCustomScrollView- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer
{
CGPoint velocity = [(UIPanGestureRecognizer *)gestureRecognizer velocityInView:self];
CGPoint location = [gestureRecognizer locationInView:self]; if (velocity.x > 0.0f&&(int)location.x%(int)[UIScreen mainScreen].bounds.size.width<) {
return NO;
}
return YES;
}@end
