我在編譯時在Equatable中出現錯誤。 我想在列表中添加find或contains方法來檢查值。 我的代碼下面Swift中的'Generic'對協議'Equatable'的冗餘一致性2.2
class Generic: NSObject, Equatable, NSCoding //Am Having an error - Redundant conformance of 'Generic' to protocol 'Equatable'
{
var genericCode: String?
var genericName : String?
var genericType : String?
var genericImageUrl : String?
var genericPhone: String?
var orgName : String?
override init()
{
self.genericCode = String("")
self.genericName = String("")
self.genericType = String("")
self.genericImageUrl = String("")
self.genericPhone = String("")
self.orgName = String("")
}
//Parameterzed Constructor for the Generic
init(genericCode: String , genericName: String , genericPhone: String, genericType: String, genericImageUrl : String)
{
self.genericCode = genericCode
self.genericName = genericName
self.genericType = genericType
self.genericImageUrl = genericImageUrl
self.genericPhone = genericPhone
}
required init(coder aDecoder: NSCoder) {
genericCode = aDecoder.decodeObjectForKey("genericCode") as? String
genericName = aDecoder.decodeObjectForKey("genericName") as? String
genericType = aDecoder.decodeObjectForKey("genericType") as? String
genericPhone = aDecoder.decodeObjectForKey("genericPhone") as? String
}
func encodeWithCoder(aCoder: NSCoder) {
aCoder.encodeObject(genericCode, forKey: "genericCode")
aCoder.encodeObject(genericName, forKey: "genericName")
aCoder.encodeObject(genericType, forKey: "genericType")
aCoder.encodeObject(genericPhone, forKey: "genericPhone")
}
}
func ==(lhs: Generic, rhs: Generic) -> Bool
{
return lhs.genericCode == rhs.genericCode
}
錯誤發生,是因爲我使用NSCoding和NSObject的?
'NSObject'已經'Equatable'在Swift2,這樣你就可以刪除協議聲明:http://stackoverflow.com/a/34515270/14955 – Thilo