有关调试的目的，我需要访问我的应用程序的共享preferences文件。据我知道，我应该会在/数据文件/ ...但我无法通过访问/ data文件夹缺少权限。这正常吗？任何方式可以访问这些文件？ （也许除了从应用程序中raeding吗？）这款手机是不是植根，我也不想根吧。 感谢您的任何提示！

For debugging purposes I need to access the shared preferences file of my application. As far as I know I should find this file in /data/... but I can't access the /data folder through to missing permissions. Is this normal? Any way to still access the file? (except maybe raeding it from inside the application?) The phone is not rooted and I also don't want to root it. Thanks for any hint!

推荐答案

我也遇到了这个问题，在过去的（不具有文件系统上的root权限，但需要访问应用程序数据文件夹）。如果你没有root权限的设备或开发设备，如ADP1那么你可以尝试在模拟器上运行你的应用程序，然后访问该文件从资源管理器，在Eclipse或DDMS。

I have ran into this issue in the past (not having root permission on the file system but needing access to the applications data folder). If you don't have a rooted device or a developer device such as the ADP1 then you can try running your application on the emulator and then accessing the files from the "File Explorer" in eclipse or DDMS.

编辑＃1： 尝试使用 GETALL 功能共享preferences和保存了一个文件，我会看看我是否能拼凑一个样本。

EDIT #1: Try using the getAll function of sharedPreferences and saving that to a file, I will see if I can throw together a sample.

编辑＃2： 例如code，从随机抽取周围的网创建，可能没有做到这一点的最好办法，但我测试了它和它的工作。它写入一个文件到SD卡的根目录。请确保您有

EDIT #2: Example Code, created from random samples around the net, probably not the best way to do it, but I tested it and it does work. It writes a file to the root of your sdcard. Make sure you have

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> 

在你的清单中设置

private void saveSharedPreferences()
{
    // create some junk data to populate the shared preferences
    SharedPreferences prefs = getSharedPreferences("MyPrefs", MODE_PRIVATE);
    SharedPreferences.Editor prefEdit = prefs.edit();
    prefEdit.putBoolean("SomeBooleanValue_True", true);
    prefEdit.putInt("SomeIntValue_100", 100);
    prefEdit.putFloat("SomeFloatValue_1.11", 1.11f);
    prefEdit.putString("SomeStringValue_Unicorns", "Unicorns");
    prefEdit.commit();

    // BEGIN EXAMPLE
    File myPath = new File(Environment.getExternalStorageDirectory().toString());
    File myFile = new File(myPath, "MySharedPreferences");

    try
    {
        FileWriter fw = new FileWriter(myFile);
        PrintWriter pw = new PrintWriter(fw);

        Map<String,?> prefsMap = prefs.getAll();

        for(Map.Entry<String,?> entry : prefsMap.entrySet())
        {
            pw.println(entry.getKey() + ": " + entry.getValue().toString());            
        }

        pw.close();
        fw.close();
    }
    catch (Exception e)
    {
        // what a terrible failure...
        Log.wtf(getClass().getName(), e.toString());
    }
}

来源 之一的两个 三