ios - 在 Swift 中向 UIAlertController 添加共享操作

Question

我正在构建一个带有 UIAlertController 的应用程序，我想要一个显示“分享”的按钮，然后打开类似

如果不是子按钮，这似乎很容易做到。

我的代码:

}


@IBAction func buttonTapped(sender: UIButton) {

    var title: String

    if sender.tag == correctAnswer {
        title = "Correct"
        ++score
    } else {
        title = "Wrong"

        let ac = UIAlertController(title: title, message: "Your score was \(score).", preferredStyle: .Alert)
        ac.addAction(UIAlertAction(title: "Try Again", style: .Default, handler: askQuestion))
        ac.addAction(UIAlertAction(title: "Share", style: .Default, handler: share))
        presentViewController(ac, animated: true, completion: nil)
        gameOver = true
        score = 0

    }

我的分享功能目前没有定义。

Answer 1

您可以在完成处理程序中定义在点击 UIAlertAction 后打开 UIActivityController，但是默认情况下 Apple 在 iPhone 中不会显示您想要的共享，在 iPad 中是的。使用以下代码，您可以在点击按钮后显示共享:

let message = "The message"
let alertController = UIAlertController(title: "The title", message: message, preferredStyle: .Alert)

let shareAction = UIAlertAction(title: "Share", style: .Default, handler: { x -> Void in

     let firstActivityItem = "Text you want"
     let secondActivityItem : NSURL = NSURL(string: "http//:urlyouwant")!

     // If you want to put an image
     let image : UIImage = UIImage(named: "image.jpg")!

     let activityViewController : UIActivityViewController = UIActivityViewController(
                activityItems: [firstActivityItem, secondActivityItem, image], applicationActivities: nil)

     // Anything you want to exclude
     activityViewController.excludedActivityTypes = [
           UIActivityTypePostToWeibo,
           UIActivityTypePrint,
           UIActivityTypeAssignToContact,
           UIActivityTypeSaveToCameraRoll,
           UIActivityTypeAddToReadingList,
           UIActivityTypePostToFlickr,
           UIActivityTypePostToVimeo,
           UIActivityTypePostToTencentWeibo
      ]

      self.presentViewController(activityViewController, animated: true, completion: nil)
 })

alertController.addAction(shareAction)
self.presentViewController(alertController, animated: true, completion: nil)

在上面的代码中我总结了添加更多按钮，我假设你想要 iPhone 的代码，如果你也想要 iPad 你可以查看我在这个问题中的答案:

• How do i add this sharing button? IOS8 with swift
• Sharing Extensions in IOS Apps

希望对您有所帮助。