如何返回导航堆栈？

我的应用程序有 7 个后续视图控制器：VC1 - VC7
在我的导航栏中，我有一个带有操作的后退按钮：点击和长按。当在任何 VC 中长按后退按钮时，应用程序应转到 VC2 并呈现它，就好像用户从 VC1 转到 VC2 一样，具体来说：点击右后退按钮操作。

这是我的 UILongPressGestureRecognizer 代码：

func longPressAction(gestureRecognizer: UIGestureRecognizer) {

    if (gestureRecognizer.state == UIGestureRecognizerState.Ended) {

        println("Long press ended")

    } else if (gestureRecognizer.state == UIGestureRecognizerState.Began) {

        println("Long press detected")

        let mainStoryboard = UIStoryboard(name: "Main", bundle: NSBundle.mainBundle())
        let vc: ViewController2 = mainStoryboard.instantiateViewControllerWithIdentifier("vc2") as! ViewController2
        navigationController?.pushViewController(vc, animated: true)

    }

}

如何返回导航堆栈中的正确位置？

您可以在导航控制器中设置视图控制器数组：

let viewControllersArray = [VC1,VC2]
self.navigationController.setViewControllers(viewControllersArray, animated: true)

EDIT

在您的场景中

else if (gestureRecognizer.state == UIGestureRecognizerState.Began) {

    println("Long press detected")

    let mainStoryboard = UIStoryboard(name: "Main", bundle: NSBundle.mainBundle())
    let vc1: ViewController1 = mainStoryboard.instantiateViewControllerWithIdentifier("vc1") as! ViewController1
    let vc2: ViewController2 = mainStoryboard.instantiateViewControllerWithIdentifier("vc2") as! ViewController2
    let VCArray = [vc1,vc2]
    self.navigationController.setViewControllers(VCArray, animated: true)
}