Ios 如何使此序列动画退出到右侧或左侧？-敏捷的

这段代码可以很好地使用向下的动画进行自定义分段转换。如何使动画看起来像是在向左或向右过渡

另外-我正在使用UISweepGestureRecognitor触发segue。它工作得很好，只是只要我轻轻一刷，就会出现这种情况。在用户将手指移开或至少进行更大的滑动之前，我如何允许该序列不发生。我需要为此使用滚动视图吗

下面是我的UISweepGestureRecognitor代码

override func viewDidLoad() {

    var swipeGestureRecognizer: UISwipeGestureRecognizer = UISwipeGestureRecognizer(target: self, action: "showSecondViewController")
    swipeGestureRecognizer.direction = UISwipeGestureRecognizerDirection.Up
    self.view.addGestureRecognizer(swipeGestureRecognizer)

}    

下面的代码是我的动画代码

class FirstCustomSegue: UIStoryboardSegue {

override func perform() {

    // Specify the initial position of the destination view.
    secondVCView.frame = CGRectMake(0.0, screenHeight, screenWidth, screenHeight)

    // Access the app's key window and insert the destination view above the current (source) one.
    let window = UIApplication.sharedApplication().keyWindow
    window?.insertSubview(secondVCView, aboveSubview: firstVCView)

    // Animate the transition.
    UIView.animateWithDuration(0.5, animations: { () -> Void in
        firstVCView.frame = CGRectOffset(firstVCView.frame, 0.0, -screenHeight)
        secondVCView.frame = CGRectOffset(secondVCView.frame, 0.0, -screenHeight)

        }) { (Finished) -> Void in

                    self.sourceViewController.presentViewController(self.destinationViewController as! UIViewController,
                        animated: false,
                        completion: nil)
            }
    }
}

---

动画方向

您只需更改初始帧和目标帧。目前，

secondVCView

的初始帧的X，Y原点

0.0

，

屏幕高度

，这意味着它位于屏幕底部的正下方。如果希望它从右侧显示，则需要将其更改为

screenWidth

，

0.0

然后，

firstVCView

的目标帧将改变，原点为

-screenWidth

，

0.0

，而

secondVCView

的目标帧将改变，原点为

0.0

，

0.0

override func perform() {

    // Specify the initial position of the destination view.
    secondVCView.frame = CGRectMake(screenWidth, 0.0, screenWidth, screenHeight)

    // Access the app's key window and insert the destination view above the current (source) one.
    let window = UIApplication.sharedApplication().keyWindow
    window?.insertSubview(secondVCView, aboveSubview: firstVCView)

    // Animate the transition.
    UIView.animateWithDuration(0.5, animations: { () -> Void in
        firstVCView.frame = CGRectOffset(firstVCView.frame, -screenWidth, 0.0)
        secondVCView.frame = CGRectOffset(secondVCView.frame, -screenWidth, 0.0)

        }) { (Finished) -> Void in

                    self.sourceViewController.presentViewController(self.destinationViewController as! UIViewController,
                        animated: false,
                        completion: nil)
            }
    }
}

延迟刷卡

修改

showSecondViewController

方法以接受

uisweegestureerecognizer

参数并检查其

state

属性。如果要在用户抬起手指时触发segue，请在

状态

为

UIgestureRecognitizerStateEnded

时触发segue

如果您想要更细粒度的控制，例如当他们刷过一定距离时，您需要检查

UIgestureRecognitizerStateChanged

的状态并监视触摸的位置。我将把这作为一个练习留给读者，因为有很多例子可以在谷歌上快速搜索：）