ios - 在SWIFT中处理UIActionSheet上的事件

我正在为SWIFT中的iOS8创建UIActionSheet。我有一个有效的代码，但仍无法处理操作表上的按钮单击。

我当前的代码是:

    var actionSheet =  UIAlertController(title: "Publish this Image ?", message: nil, preferredStyle: UIAlertControllerStyle.ActionSheet)
    actionSheet.addAction(UIAlertAction(title: "Tweet", style: UIAlertActionStyle.Cancel, handler: nil))
    actionSheet.addAction(UIAlertAction(title: "WhatsApp", style: UIAlertActionStyle.Default, handler: nil))
    actionSheet.addAction(UIAlertAction(title: "Cancel", style: UIAlertActionStyle.Destructive, handler: nil))
    self.presentViewController(actionSheet, animated: true, completion: nil)

如何处理按钮单击事件？
我是否需要以任何方式使用handle参数？

最佳答案

您可以尝试类似:

    var actionSheet =  UIAlertController(title: "Publish this Image ?", message: nil, preferredStyle: UIAlertControllerStyle.ActionSheet)
    actionSheet.addAction(UIAlertAction(title: "Tweet", style: UIAlertActionStyle.Default, handler: { (ACTION :UIAlertAction!)in
        //your code here...
        }))
    actionSheet.addAction(UIAlertAction(title: "WhatsApp", style: UIAlertActionStyle.Default, handler: { (ACTION :UIAlertAction!)in
        //your code here...
    }))
    actionSheet.addAction(UIAlertAction(title: "Cancel", style: UIAlertActionStyle.Cancel, handler: nil))
    self.presentViewController(actionSheet, animated: true, completion: nil)