一 .遵守NSSecureCoding协议
二.实现协议方法 static var supportsSecureCoding: Bool 设置为true
实现func encode(withcoder: NSCoder) 和requiredinit?(coder: NSCoder)
三 使用NSKeyedArchiver和NSKeyedUnarchiver进行归档解档操作
下面是代码实现：
//
// Person.swift
// TestSwift
//
// Created by 李功骄 on 2022/4/22.
//
importFoundation
classPerson:NSObject,NSSecureCoding {//
static var supportsSecureCoding: Bool {
return true
}
required override init() {
super.init()
}
funcencode(withcoder: NSCoder) {
coder.encode(name, forKey:"name")
coder.encode(age, forKey:"age")
}
requiredinit?(coder: NSCoder) {
name = coder.decodeObject(forKey:"name")as?String
age = coder.decodeObject(forKey:"age")as?Int
}
letfilePath:String= {
letpath = NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.documentDirectory, FileManager.SearchPathDomainMask.userDomainMask,true).first!asNSString
letfilePath = path.appendingPathComponent("test.data")
returnfilePath
}()
varage:Int? =0
varname:String?
func saveAccount() {
letdata =try? NSKeyedArchiver.archivedData(withRootObject:self, requiringSecureCoding:true)
try? data?.write(to: URL(fileURLWithPath:filePath))
}
funcloadAccount() -> Person?{
ifletdata =try? Data(contentsOf: URL(fileURLWithPath:filePath)) {
letmodel =try? NSKeyedUnarchiver.unarchiveTopLevelObjectWithData(data)as?Person
returnmodel
}else{
returnnil
}
}
}
