swift2 迁移到Swift 2后，UIActivityViewController出错

x7yiwoj4 于 2022-11-06 发布在 Swift

关注(0)|答案(3)|浏览(218)

ShareButton函数在Xcode 6中工作正常，但在升级到Xcode 7后，该行中出现错误：
具有项目处理程序的平均完成时间= {
我的代码：

@IBAction func ShareButton(sender: AnyObject) {

    let things = ["Thank you"]

    let avc = UIActivityViewController(activityItems:things, applicationActivities:nil)

    avc.setValue("Salon Job HK", forKey: "subject")

    avc.completionWithItemsHandler = {

        (s: String!, ok: Bool, items: [AnyObject]!, err:NSError!) -> Void in

    }

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

    if let pop = avc.popoverPresentationController {

        let v = sender as! UIView // sender would be the button view tapped, but could be any view

        pop.sourceView = v

        pop.sourceRect = v.bounds

    }

}

swift2

来源：https://stackoverflow.com/questions/32930662/uiactivityviewcontroller-error-after-migration-to-swift-2

3条答案

按热度按时间

fykwrbwg1#

只需检查Swift 2.0用户界面活动视图控制器的CompletionWithItemsHandler声明：
类型别名UIActivityViewControllerCompletionWithItemsHandler =（字符串？，布尔值，[任意对象]？，NSError？）-〉无效
请这样尝试：

avc.completionWithItemsHandler = {

    (s: String?, ok: Bool, items: [AnyObject]?, err:NSError?) -> Void in

}

或者简单地说：

avc.completionWithItemsHandler = {
    (s, ok, items, err) in

}

雨燕3

@IBAction func shareButton(sender: Any) {  
    let things = ["Thank you"]
    let avc = UIActivityViewController(activityItems: things, applicationActivities: nil)
    avc.setValue("Salon Job HK", forKey: "subject")
    avc.completionWithItemsHandler = {
        (activityType, completed, returnedItems, activityError) in
        // code
    }
    present(avc, animated: true)
}

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w46czmvw2#

这在Swift 3.0中再次发生了轻微变化：

UIActivityViewControllerCompletionWithItemsHandler = (UIActivityType?, Bool, [Any]?, Error?) -> Void

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uurv41yg3#

除了上面的答案之外，您还可以将其设置为nil，因为在调用完成时您似乎没有执行任何操作

avc.completionWithItemsHandler = nil

赞(0）回复(0）举报 2022-11-06

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swift2 迁移到Swift 2后，UIActivityViewController出错

3条答案

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