访问 Android 应用程序首次运行的共享首选项时出错 [英] Error while accessing shared preferences of Android App's first run

问题描述

每当我在安装后第一次运行我的 Android 应用程序并访问共享首选项时，我都会收到此系统错误 -

Whenever I run my Android app for the first time after installation and access the shared preferences, I get this system error -

remove failed: ENOENT (No such file or directory) : /data/user/0/com.example.ap/shared_prefs/com.google.android.gms.appid.xml.bak

我无法弄清楚此错误的含义.任何帮助将不胜感激.谢谢

I am not able to figure out what this error means. Any help will be appreciated. Thanks

访问共享首选项的代码 -

Code to access shared preferences -

String setOrNot;
    SharedPreferences sharedPref = getSharedPreferences("LastFetchTimeFile",MODE_PRIVATE);
    if(sharedPref.contains("LastFetchTime"))
    {
        String lastFetchTime = sharedPref.getString("LastFetchTime", null);
        setOrNot = lastFetchTime;
    }
    else
    {
        setOrNot = "notSetYet";
    }

推荐答案

移除 if 条件，共享首选项会为您处理.我会做的是

Remove the if condition, shared preference handles that for you. What i would do is

String setOrNot;
SharedPreferences sharedPref = getSharedPreferences("LastFetchTimeFile",MODE_PRIVATE);

     setOrNot = sharedPref.getString("LastFetchTime", "notSetYet");

你能告诉我哪个设备/操作系统吗?

Also can you tell me which device/os ?

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