应用程序会在重新启动时忘记共享首选项 [英] App keeps forgetting sharedpreferences on restart

问题描述

我不知道该怎么办

似乎可以在android 3.0及更高版本上正常工作，但是在android 2.3.3上，每次我启动该应用程序时，它都会再次询问用户名/密码.

Seems to be working fine with android 3.0 and higher, but on android 2.3.3 every time I launch the application it is asking for the username/password again.

我正在使用共享的首选项.

I'm using the shared preferences.

这是我保存首选项的方式:

Here is how I save preferences:

        SharedPreferences preferences = MyApplication.getAppContext().getSharedPreferences("athopbalance", MODE_PRIVATE);
        SharedPreferences.Editor editor = preferences.edit();
        editor.putString("username", username).commit();
        editor.putString("password", password).commit();

这是我的阅读方式:

    SharedPreferences preferences = MyApplication.getAppContext().getSharedPreferences("athopbalance", Context.MODE_PRIVATE);
    String username = preferences.getString("username", "");
    String password = preferences.getString("password", "");

我还尝试使用以下代码保存首选项:

I also tried to save preferences using this code:

        SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(MyApplication.getAppContext());
        SharedPreferences.Editor editor = preferences.edit();
        editor.putString("username", username).commit();
        editor.putString("password", password).commit();

然后使用以下代码阅读它们:

And the read them with this code:

    SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(MyApplication.getAppContext());
    String username = preferences.getString("username", "");
    String password = preferences.getString("password", "");

但是它也不起作用.

问题是在重新启动应用程序之前，我可以看到它们仍然存在.但是，一旦我重新启动-我最终得到的用户名是"(空字符串)，密码是".

The problem is before I restart the application I can see that they are still there. However as soon as I do the restart - I end up with getting "" (empty string) for username and "" for password.

任何想法都将不胜感激

推荐答案

我不知道到底发生了什么，但是重新启动模拟器后问题就消失了.

I don't know exactly what happened, but after I've restarted the emulator issue is gone.

很抱歉浪费您的时间

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