关于UIPageViewController去除边缘点击手势

如果page上方还有一层UI控件的话，不去除边缘点击手势会造成手势的冲突干扰。

首先我做的处理是设置pageView的手势代理

for (UIGestureRecognizer *gr in _pageViewController.gestureRecognizers) {

         if ([gr isKindOfClass:[UIPanGestureRecognizer class]]) {

               gr.delegate = self;
         }
}
-(BOOL) gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch    (UITouch *)touch {
    if ([gestureRecognizer isKindOfClass:[UITapGestureRecognizer class]]) {
            return NO;
         }
    return YES;
}

但是这样处理，会在第一页忘前翻页和在最后一页往后翻页出现crash，而且不清楚原因。

正确处理方法：

新建一个UIpageControlller的类别

#import <UIKit/UIKit.h>

@interface UIPageViewController (YCGestureTool)

@end

#import "UIPageViewController+YCGestureTool.h"

@implementation UIPageViewController (YCGestureTool)

-(BOOL) gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch{
    if ([gestureRecognizer isKindOfClass:[UITapGestureRecognizer class]]) {
        return NO;
    }
    return YES;
}

完美解决！