UIPageController和手勢識別器

Question

我正在使用UIPageController來實現基於頁面的導航應用程序。我想僅在頁面邊緣啓用滑動手勢，並阻止來自內部內容視圖的手勢。該頁面具有20個像素的邊距：

contentView.frame = CGRectInset(self.view.frame, 20, 20); 

Answer 1

一旦識別出你應該能夠檢索locationInView，然後如果這是一個可接受的值進行手勢，否則不是。

Answer 2

首先添加類接口。

@interface MyPageViewController :UIViewController<UIPageViewControllerDelegate, UIGestureRecognizerDelegate> 

然後在viewDidLoad中添加

for (UIGestureRecognizer *recognizer in self.pageViewController.gestureRecognizers) { 

     recognizer.delegate = self; 

} 

然後實現shouldReceiveTouch方法

#pragma mark - UIGestureRecognizer delegate methods 
-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch{ 


    CGPoint touchPoint = [touch locationInView:self.pageViewController.view]; 

    CGRect innerRect = CGRectInset(self.pageViewController.view.frame, 40, 40); 

    if (CGRectContainsPoint(innerRect, touchPoint)) { 
     return NO; 
    } 

    return YES; 
}