Question

android studio中的共享首选项的xamarin（ios）中是否有一些模拟用于在启动之间保存数据？

或者最好的方法 - 写入文件并在需要时阅读？

public override void ViewDidLoad()
    {
        base.ViewDidLoad();
        // Perform any additional setup after loading the view, typically from a nib.

        var webClient = new WebClient();

        var url = new Uri("some_url");

        webClient.DownloadStringCompleted += (s, e) =>
        {
            var text = e.Result;
            string documentsPath = Environment.GetFolderPath(Environment.SpecialFolder.Personal);
            string localFilename = "downloaded.txt";
            string localPath = Path.Combine(documentsPath, localFilename);
            File.WriteAllText(localPath, text);

            long miliseconds = DateTime.Now.Ticks / TimeSpan.TicksPerMillisecond;

            NSUserDefaults.StandartUserDefaults.setBool(true, "Boolean"); //the name 'NSUserDefaults' does not exist in the current context - why?


            webClient.DownloadStringAsync(url);

        };

Answer 1

在iOS中，您可以使用NSUserDefaults来存储配置和偏好数据

// Get Shared User Defaults
var plist = NSUserDefaults.StandardUserDefaults;

// Save value
plist.SetString(userName, "UserName");

// Sync changes to database
plist.Synchronize();

Answer 2

看看NSUserDefaults。

将字符串写入：NSUserDefaults.StandardUserDefaults.SetString(value, key); 阅读以下字符串：NSUserDefaults.StandardUserDefaults.StringForKey(key);

xamarin studio，ios，在发布之间保存数据

2 个答案: