2
我可以得到一個字符串來保存到NSUserDefaults,但我不知道爲什麼它不會使用下面的代碼保存數組。我相信這是一個小東西,但可以使用指針。nsuserdefault不保存數組 - 斯威夫特
//
// ViewController.swift
// DemoUserDefaults
//
// Created by Chris Cantley on 10/7/14.
// Copyright (c) 2014 Chris Cantley. All rights reserved.
//
import UIKit
class ViewController: UIViewController {
var storeNames:[String] = []
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
storeNames.append("Billy")
storeNames.append("Chris")
// Shows the strings in the array.
println(storeNames)
// puts mutable into immutable object
let holdNames = storeNames
// "should" store the object into UserDefaults... but does not.
NSUserDefaults.standardUserDefaults().setObject(holdNames, forKey: "storeNames")
NSUserDefaults.standardUserDefaults().synchronize()
// Displays all data in UserDefaults... array is missing.
println(NSUserDefaults.standardUserDefaults().dictionaryRepresentation())
}
}
結果...
[Billy, Chris]
[NSLanguages: (
en
), AppleITunesStoreItemKinds: (
audiobook,
"tv-episode",
booklet,
software,
"software-update",
"itunes-u",
ringtone,
"tv-season",
movie,
mix,
newsstand,
song,
wemix,
tone,
artist,
"podcast-episode",
podcast,
document,
eBook,
album,
"music-video"
), AppleKeyboardsExpanded: 1, NSInterfaceStyle: macintosh, AppleKeyboards: (
"[email protected]=US;sw=QWERTY",
"[email protected]=Emoji",
"[email protected]=US;sw=QWERTY"
), AppleLanguages: (
en
), names: Rob]
注: 「名稱:羅布」 是從以前的單一字符串保存。
還有什麼是你的陣列比 「比利」 和 「克里斯」 等?因爲他們在頂部。 – 2014-10-07 14:26:14
有兩個println()語句。第一個確認數組中有數據。 第二個輸出NSUserDefaults,顯示未添加數組。 – 2014-10-07 17:04:31