Dismiss modal form sheet view on outside tap iOS 8

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故里飘歌
故里飘歌 2020-12-14 08:08

I\'ve been trying to dismiss the modal form sheet view on outside tap on iOS 8 with no luck, I\'ve tried this code

UITapGestureRecognizer *recognizer = [[U         


        
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  •  难免孤独
    2020-12-14 08:37

    There are actually two problems in iOS 8. First, the gesture recognition does not begin.

    I solved this by adding the UIGestureRecognizerDelegate protocol and implementing

    -(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer*)otherGestureRecognizer
    {
        return YES;
    }
    

    Also, don't forget to register the delegate with

    recognizer.delegate = self;
    

    Now the gesture recognizer should recognize gestures and the target method (handleTapBehind:) will be called.

    Here comes the second problem in iOS 8: locationInView: doesn't seem to take the device orientation into account if nil is passed as a view. Instead, passing the root view works.

    Here's my target code that seems to work for iOS 7.1 and 8.0:

    if (sender.state == UIGestureRecognizerStateEnded) {
        UIView *rootView = self.view.window.rootViewController.view;
        CGPoint location = [sender locationInView:rootView];
        if (![self.view pointInside:[self.view convertPoint:location fromView:rootView] withEvent:nil]) {
            [self dismissViewControllerAnimated:YES completion:^{
                [self.view.window removeGestureRecognizer:sender];
            }];
        }
    }
    

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