编码/雨燕为（6.1的Xcode）解码枚举

Question

我

var priority : Priority! = Priority.defaultPriority 

func encodeWithCoder(aCoder: NSCoder) { 
     aCoder.encodeInteger(priority.toRaw(), forKey: "priority") //toRaw may not yield the result I am expecting 
    } 

    required init(coder aDecoder: NSCoder) { 
     priority = aDecoder.decodeIntegerForKey("priority") //complaining about conflicting types 
    } 

与枚举为以下几点：

enum Priority : Int { 
     case defaultPriority = 0 
     case lowPriority = 1 
     case mediumPriority = 2 
     case highPriority = 3 
    } 

什么是编码的最好方法/解码呢？

Answer 1

Priority.init(rawValue:)应该工作。

func encodeWithCoder(aCoder: NSCoder) { 
    aCoder.encodeInteger(priority.rawValue, forKey: "priority") 
} 

required init(coder aDecoder: NSCoder) { 
    priority = Priority(rawValue: aDecoder.decodeIntegerForKey("priority")) 
}