保存在Android的碎片数据 [英] Save data in android fragment

问题描述

我开发的 Xamarin的Andr​​oid应用程序。我不知道如何保存变量的值，我有myfragment.I希望该变量的值回来时，我经过完全关闭重新打开我的应用程序it.How我可以实现吗？

I am developing Xamarin Android Application.I don't know how to save variable value which I have in myfragment.I want that variable's value back when I reopen my application after completely closing it.How can I implement it ?

推荐答案

家伙，我已经在片段使用下面code解决这个问题：

guys I have already solve this using below code in fragment:

protected void saveset(){
        var prefs =this.Activity.GetSharedPreferences("MyApp",FileCreationMode.Private);
        var prefEditor = prefs.Edit();
        prefEditor.PutString ("LoginUserName",LoginUserName.Text.Trim());
        prefEditor.PutString ("ProfilePicture",ImageUrl);
        prefEditor.PutString ("UserID", User_Id);
        prefEditor.Commit();
    }
protected void retrieveset(){
        //retreive 
        var prefs =this.Activity.GetSharedPreferences("MyApp", FileCreationMode.Private);            
        LoginUserName.Text= prefs.GetString ("LoginUserName", string.Empty);
        ImageUrl= prefs.GetString ("ProfilePicture", string.Empty);
        User_Id = prefs.GetString ("UserID", string.Empty);
      }

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