利用UIActivityViewController共享图像

Question

使用UIImageView共享来自UIActivityViewController的图像

我试图使用UIActivityViewController共享一个图像，但是我得到了错误：

func shareIMG(){
    let activityItems = [self.imageView.image]
    let avc = UIActivityViewController(activityItems: activityItems, applicationActivities: nil)

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

错误消息：

无法为类型“UIActivityViewController”找到接受类型参数列表(activityItems: UIImage?，applicationActivities: nil)的初始化程序

有什么想法吗？

Answer 1

let activityItem: [AnyObject] = [self.imageView.image as! AnyObject]

let avc = UIActivityViewController(activityItems: activityItem as [AnyObject], applicationActivities: nil)

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

备注：在Xcode 6.3模拟器中测试的上述代码

Answer 2

只要创建一个按钮，它就可以行动了。然后像这样安装按钮的动作。

注意:你必须登录你的facebook或twitter通过设置。那就像这样做吧。

@IBAction func onShareTouched(sender: AnyObject) {

    print("share")

    let myShare = "My beautiful photo! <3 <3"
    let image: UIImage = UIImage(named: "yourImageNameHere")

    let shareVC: UIActivityViewController = UIActivityViewController(activityItems: [(image), myShare], applicationActivities: nil)
    self.presentViewController(shareVC, animated: true, completion: nil)

}

Answer 3

使用Swift 5

   let img  = imageView.image!.pngData()
   let messageStr:String  = "some sharing text"
   let shareItems:Array = [img!, messageStr] as [Any]

   let activityViewController = UIActivityViewController(activityItems: shareItems, applicationActivities: nil)
    activityViewController.excludedActivityTypes = [UIActivity.ActivityType.print, UIActivity.ActivityType.postToWeibo, UIActivity.ActivityType.copyToPasteboard, UIActivity.ActivityType.addToReadingList, UIActivity.ActivityType.postToVimeo]

    if UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiom.phone {
        self.present(activityViewController, animated: true, completion: nil)
        } else {
            let popup: UIPopoverController = UIPopoverController(contentViewController: activityViewController)
            popup.present(from: sender.bounds, in: sender, permittedArrowDirections: UIPopoverArrowDirection.any, animated: true)
        }