我在Xcode中开发了一个Swift项目。我努力修复所有错误,但我仍然有2,让我的项目停滞不前,正如您在下面的代码中看到的那样: @ Error1 和 @ Error2 。 我希望你能帮助我!提前谢谢!
override func viewDidLoad() {
super.viewDidLoad()
//Getting the URL of the item
for item in self.extensionContext!.inputItems {
if let item = item as? NSExtensionItem {
for itemProvider in item.attachments! {
//Going through each item in each input item
if let itemProvider = itemProvider as? NSItemProvider {
if itemProvider.hasItemConformingToTypeIdentifier(kUTTypeURL as String) {
//If the item contains a URL
itemProvider.loadItemForTypeIdentifier(kUTTypeURL as String, options: nil, completionHandler: {(content, error) -> Void in
dispatch_async(dispatch_get_main_queue()){
if let url = content as? URL /*@Error1*/ {
if url.absoluteString("youtube.com") || url.absoluteString.contains("youtu.be") { //@Error1.1
self.setTitleOfTextView("Video")
//Just in case the app isn't running in the background, write the URL to the shared NSUserDefaults
var existingItems = Constants.sharedDefaults.valueForKey(Constants.videosToAdd)// sharedDefaults.value(forKey: Constants.videosToAdd) as! [String]
existingItems.append(url.absoluteString) //@Errror1.2
//Constants.sharedDefaults.set(existingItems, forKey: Constants.videosToAdd)
//Constants.sharedDefaults.synchronize()
NSUserDefaults.standardUserDefaults().setInteger(yourScore, forKey: "highScore")
NSUserDefaults.standardUserDefaults().synchronize()
//Passing URL
self.wormhole.passMessageObject(url.absoluteString as NSCoding?, identifier: "youTubeUrl")
return
}
}
self.setTitleOfTextView("Invalid URL.")
}
})
}
}
}
}
}
}
@ Error1 :'使用未声明的类型
URL
'。请注意,
content
中的if let url = **content** as? URL {...}
声明为:let content: NSSecureCoding?
。更新:如果我将
URL
更改为NSURL
,我会再收到2个错误:@ Error1.1 (
if url.absoluteString("youtube.com") || url.absoluteString.contains("youtu.be") {...}
):无法调用非函数类型String
的值。@ Error1.2 (
existingItems.append(url.absoluteString)
):AnyObject?
类型的值没有成员append
。
func setTitleOfTextView(_ text: String) {
self.mainLabel.text = text
DispatchQueue.main.asyncAfter(deadline: dispatch_time_t() + Double(Int64(3 * Double(NSEC_PER_SEC))) / Double(NSEC_PER_SEC)) /*@Error2*/ {
UIView.animate(withDuration: 0.25, animations: {
self.view.alpha = 0
}, completion: { completed in
self.extensionContext?.completeRequest(returningItems: nil) { completed in
self.dismiss(animated: true, completion: nil)
}
})
}
}
@ Error2 :'使用未解析的标识符
DispatchQueue
'。更新:如果我改变了
DispatchQueue.main.asyncAfter(deadline: dispatch_time_t() + Double(Int64(3 * Double(NSEC_PER_SEC))) / Double(NSEC_PER_SEC)) {...}
到dispatch_after(dispatch_time_t(), Int64((3 * Double(NSEC_PER_SEC)) / Double(NSEC_PER_SEC)) ) {...}
,我仍然收到错误:参数类型Int64
不符合预期类型dispatch_queue_t
(又名OS_dispatch_queue
)。
答案 0 :(得分:1)
我认为您可以尝试以下方法:
使用NSURL代替网址。
使用:
dispatch_after(deadline:dispatch_time_t() +Int64((3 * Double(NSEC_PER_SEC)) / Double(NSEC_PER_SEC)), dispatch_get_main_queue()) {
而不是:
DispatchQueue.main.asyncAfter(deadline: dispatch_time_t() + Double(Int64(3 * Double(NSEC_PER_SEC))) / Double(NSEC_PER_SEC)) {`
答案 1 :(得分:0)
试图在 Swift 2.2 (使用 Xcode 7 )中使用这段代码时有点奇怪......修复后,另一个出现了。 切换到 Swift 3 (在 Xcode 8 中)可以使一切变得快速而干净。