如何在Swift中解除ViewController？ [英] How to dismiss ViewController in Swift?

问题描述

我试图通过在 IBAction

  @IBAction func cancel(sender: AnyObject) {
    self.dismissViewControllerAnimated(false, completion: nil)
    println("cancel")
}

@IBAction func done(sender: AnyObject) {
    self.dismissViewControllerAnimated(false, completion: nil)
    println("done")
}

我可以在控制台输出中看到println消息，但ViewController永远不会被解雇。可能是什么问题呢？

I could see the println message in console output but ViewController never gets dismissed. What could be the problem?

推荐答案

从你的图像来看，你好像是用推送来呈现ViewController

From you image it seems like you presented the ViewController using push

你需要使用

navigationController.popViewControllerAnimated(true)

dismissViewControllerAnimated 用于关闭使用模态显示的ViewControllers

The dismissViewControllerAnimated is used to close ViewControllers that presented using modal

Swift 3.0更新：

navigationController?.popViewController(animated: true)

dismiss(animated: true, completion: nil)

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