问题描述
在我的 singleton 类中，我有一个 swift 枚举：
In my singleton class, I have a swift enum here:
import UIKit
enum UserType {
case terant //
case normalUser //
case normalUserFinancialer //
}
@objc(UserStaticSwift)
class UserStaticSwift:NSObject, NSCoding {
报告的错误：
使用控制台 log：
在 encode ：
func encode(with aCoder: NSCoder) {
/* 基础 */
aCoder.encode(islogin, forKey: "islogin")
aCoder.encode(type!, forKey: "type") // crash here in real device
aCoder.encode(forOcType, forKey: "forOcType")
aCoder.encode(username, forKey: "username")
aCoder.encode(password, forKey: "password")
aCoder.encode(userId, forKey: "userId")
代码这里我存档我的 userStatic ：
userStatic.addUserInfo(type: userStatic.type!, dic: userInfoDic, closure: { (void) in
// success then archive `userStatic`
let paths:NSArray = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true) as NSArray
let path = paths.firstObject
let homePath = "\(path)/\(Global.archive_userStaticData)"
let _ = NSKeyedArchiver.archiveRootObject(userStatic, toFile: homePath)
})
我的调试当 archiveRootObject ：
控制台 log：
(lldb) po NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true) as NSArray
error: Couldn't materialize: couldn't get the value of void: extracting data from value failed
error: errored out in DoExecute, couldn't PrepareToExecuteJITExpression
(lldb) po homePath
error: Couldn't materialize: couldn't get the value of void: extracting data from value failed
error: errored out in DoExecute, couldn't PrepareToExecuteJITExpression
我已经在模拟器和设备在模拟器中，问题不存在，在设备中出现问题。
I have tested in simulator and device, in the simulator the issue not exist, in real device the issue comes out.
推荐答案
尝试这样做问题
func encode(with aCoder: NSCoder) {
aCoder.encode(type.rawValue, forKey: "type")
}
更多信息
请详细讨论此问题
例如，这是我的枚举：
enum PieceType : Int {
case empty
case notEmpty
}
这是我的Object，它是 NSObject
And this is my Object which is child of NSObject
class Piece: NSObject, NSCoding {
var islogin: Bool
var type: PieceType
var username: String!
var password: String!
override init() {
islogin = false
type = PieceType.empty
username = ""
password = ""
}
required init(coder aDecoder: NSCoder) {
islogin = aDecoder.decodeBool(forKey: "islogin")
type = PieceType(rawValue: aDecoder.decodeObject(forKey: "type") as! Int)!
username = aDecoder.decodeObject(forKey: "username") as! String
password = aDecoder.decodeObject(forKey: "password") as! String
}
func encode(with aCoder: NSCoder) {
aCoder.encode(islogin, forKey: "islogin")
aCoder.encode(type.rawValue, forKey: "type")
aCoder.encode(username, forKey: "username")
aCoder.encode(password, forKey: "password")
}
}
当您调用 NSKeyedArchiver .archiveRootObject（::）它将调用 func encode（with aCoder：NSCoder）方法并转换您的 NSObject 到数据当您尝试取消存档您的对象时，将调用 init（coder aDecoder：NSCoder）方法并将数据转换为 NSObject 通过使用Key。
When you call NSKeyedArchiver.archiveRootObject(::) it will call func encode(with aCoder: NSCoder) method and convert your NSObject to Data And when you try to Unarchive your object it will call init(coder aDecoder: NSCoder) method and convert Data to NSObject by using Key.
但是在枚举案例中，您无法编码 enum 直接B'Coz是用户定义数据类型，但 rawValue 必须是内置的数据类型，如Int，String，Float .. ...所以。
这就是为什么当您尝试编码枚举时，您需要使用 rawValue
But in Enum case you can not encode enum directly B'Coz it is User Define data type but rawValue is must be inbuilt data type like Int, String,Float.....So on.that's why when you try to encode enum you need to use rawValue
我希望你能得到点。
这篇关于当func编码（使用aCoder：NSCoder）方法中的归档对象在真实的设备中与swift枚举崩溃时的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！