如何添加此共享按钮？迅速的iOS8

Question

我希望在我的应用程序中有一个按钮，当按下该按钮时，将弹出此按钮（请参见下图）。我怎么做？我不想创建一个自定义共享活动，我只想要默认一个？我使用什么代码？在线上的所有教程都在Objective-
C中。请尽快给出答案。

图片：http: //9to5mac.com/2014/06/30/hands-on-1password-beta-shows-off-
ios-8s-touch-id-extensions-apis-video/#jp-
carousel-330420

到目前为止，这是我的代码，但是我得到一个错误，即UIBarButtonItem无法转换为UIVIew为什么？该动作是否连接到导航栏按钮项目？

@IBAction func ActionButton(sender: UIBarButtonItem) {

    let firstActivityItem = "Text you want"
    let secondActivityItem : NSURL = NSURL(string: "http//:urlyouwant")!
    // If you want to put an image
    let image : UIImage = UIImage(named: "TALogo")!

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

    // This lines is for the popover you need to show in iPad
    activityViewController.popoverPresentationController?.sourceView = (sender as! UIBarButtonItem)

    // This line remove the arrow of the popover to show in iPad
    activityViewController.popoverPresentationController?.permittedArrowDirections = UIPopoverArrowDirection.allZeros
    activityViewController.popoverPresentationController?.sourceRect = CGRect(x: 150, y: 150, width: 0, height: 0)

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

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



}

Answer 1

该方式UIActivityViewController例如以以下方式使用：

@IBAction func shareSheet(sender: AnyObject) {

    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)

    // This lines is for the popover you need to show in iPad 
    activityViewController.popoverPresentationController?.sourceView = (sender as! UIButton)

    // This line remove the arrow of the popover to show in iPad
    activityViewController.popoverPresentationController?.permittedArrowDirections = UIPopoverArrowDirection.allZeros
    activityViewController.popoverPresentationController?.sourceRect = CGRect(x: 150, y: 150, width: 0, height: 0)

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

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

上面的代码适用于iPhone和iPad，因为popoverPresentationController在iOS 8中设置了新代码后，它也适用于iPad。

在使用的情况下，UIBarButtonItem您需要替换以下行：

activityViewController.popoverPresentationController?.sourceView = (sender as! UIButton)

有了这个：

activityViewController.popoverPresentationController?.barButtonItem = (sender as! UIBarButtonItem)

希望对您有所帮助。