IOS开发: 全屏右划pop过程中, 返回手势与scrollView手势冲突的解决方法

• 效果图如下:

• 全屏右滑pop返回请看 <a href="http://www.jianshu.com/p/e183689ae80a">iOS开发: 导航控制器 - 全屏右滑pop返回效果</a>

具体步骤

• 第一步: 定义LTScrollView类, 继承自UIScrollView
• 第二部: 重写scrollView的<a>-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer</a>方法即可
• 具体代码如下

#import "LTScrollView.h"

@interface LTScrollView () <UIGestureRecognizerDelegate>

@end

@implementation LTScrollView

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
{
    // 首先判断otherGestureRecognizer是不是系统pop手势
    if ([otherGestureRecognizer.view isKindOfClass:NSClassFromString(@"UILayoutContainerView")]) {
        // 再判断系统手势的state是began还是fail，同时判断scrollView的位置是不是正好在最左边
        if (otherGestureRecognizer.state == UIGestureRecognizerStateBegan && self.contentOffset.x == 0) {
            return YES;
        }
    }
    
    return NO;
}

@end

• 最后, 只需要将使用的UIScollView类型换成LTScrollView类型即可