xcode 无法使用 StringLiteralConvertible 类型的参数列表调用“init”
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/27792514/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Cannot invoke 'init' with argument list of type StringLiteralConvertible
提问by 4aRk Kn1gh7
when I try to run the code below I get this error:
当我尝试运行下面的代码时，出现此错误：
Cannot invoke 'init' with argument list of type (id:StringLiteralConvertible,host:Contact,target:Contact,text:StringLiteralConvertible)
I tried using NSString and String in my class but still having the same problem. Can anyone guide me what i'm missing here?
我尝试在我的班级中使用 NSString 和 String 但仍然遇到同样的问题。任何人都可以指导我在这里缺少什么吗？
class Contact {
let id:String? = ""
let name:String? = ""
var number:String? = ""
var photoPath:String? = ""
var onlineStatus:Bool? = false
init(id:String,name:String) {
self.id = id
self.name = name
self.number = ""
self.photoPath = ""
self.onlineStatus? = false
}
}
class Message {
var id:String?
var time:NSDate?
var host:Contact?
var target:Contact?
init(id:String,host:Contact,target:Contact,time:NSDate) {
self.id = id
self.host = host
self.target = target
self.time = time
}
}
class TextMessage:Message {
var text:String?
init(id: String, host: Contact, target: Contact, time: NSDate, text: String) {
super.init(id: id, host: host, target: target, time: time)
self.text = text
}
}
let host = Contact(id: "", name: "")
let target = Contact(id: "", name: "")
let msg = TextMessage(id: "", host: host, target: target, time: NSData(), text: "")
回答by appleHyman42
You've got the wrong data type in your call to TextMessage init, should be NSDate()
您在调用 TextMessage init 时得到了错误的数据类型，应该是 NSDate()
let msg = TextMessage(id: "", host: host, target: target, time: NSDate(), text: "")
