ios – Swift的编码/解码枚举(Xcode 6.1)

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参见英文答案 > How do I encode enum using NSCoder in swift?3个
我有
  1. var priority : Priority! = Priority.defaultPriority
  2.  
  3. func encodeWithCoder(aCoder: NSCoder) {
  4. aCoder.encodeInteger(priority.toRaw(),forKey: "priority") //toRaw may not yield the result I am expecting
  5. }
  6.  
  7. required init(coder aDecoder: NSCoder) {
  8. priority = aDecoder.decodeIntegerForKey("priority") //complaining about conflicting types
  9. }

枚举如下:

  1. enum Priority : Int {
  2. case defaultPriority = 0
  3. case lowPriority = 1
  4. case mediumPriority = 2
  5. case highPriority = 3
  6. }

编码/解码这个的最佳方法是什么?

解决方法

Priority.init(rawValue :)应该可以工作.
  1. func encodeWithCoder(aCoder: NSCoder) {
  2. aCoder.encodeInteger(priority.rawValue,forKey: "priority")
  3. }
  4.  
  5. required init(coder aDecoder: NSCoder) {
  6. priority = Priority(rawValue: aDecoder.decodeIntegerForKey("priority"))
  7. }

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