1、定義一個(gè)student類(lèi)
import UIKit
class Student: NSObject, NSCoding {
// MARK: - Properties
var sno: String!
var name: String!
var score: Int!
// MARK: - Init
init(sno: String, name: String, score: Int) {
self.sno = sno
self.name = name
self.score = score
}
// MARK: - NSCoding
// 編碼的時(shí)候調(diào)用這個(gè)方法
func encodeWithCoder(aCoder: NSCoder) {
aCoder.encodeObject(sno, forKey: "sno")
aCoder.encodeObject(name, forKey: "name")
aCoder.encodeInteger(score, forKey: "score")
}
// 解碼的時(shí)候調(diào)用這個(gè)方法
required init?(coder aDecoder: NSCoder) {
sno = aDecoder.decodeObjectForKey("sno") as! String
name = aDecoder.decodeObjectForKey("name") as! String
score = aDecoder.decodeIntegerForKey("score")
}
}
2偎捎、主類(lèi)調(diào)用
import UIKit
class ViewController: UIViewController {
// Documents目錄
lazy var documentsPath: String = {
let paths = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)
return paths.first!
}()
override func viewDidLoad() {
super.viewDidLoad()
// 歸檔操作
// 創(chuàng)建對(duì)象
let student = Student(sno: "1101", name: "maizixueyuan", score: 99)
// 構(gòu)造路徑
let path = "\(documentsPath)/student.archive"
// 歸檔對(duì)象
NSKeyedArchiver.archiveRootObject(student, toFile: path)
// 解檔操作
let object = NSKeyedUnarchiver.unarchiveObjectWithFile(path) as! Student
print("\(object.sno), \(object.name), \(object.score)")
// 檢查文件
print("\(NSHomeDirectory())")
}
}