Reading names of directories in /data/data/

Question

I'm trying get my app to get the name of every app on the device. The best way I can think of doing this is reading the name of every directory in /data/data/ into a list. I have the following code which works on other directories but not /data/data/.

public void generateDirList() {
        File rootDir = new File(currentLocation);
        String[] directories = rootDir.list();
        subDirs = new ArrayList<String>();

        for(String dir : directories)
        {
            if (new File(currentLocation + File.separator + dir).isDirectory())
            {
                Log.i(TAG, dir);
                subDirs.add(dir);
            }
        }
    }

The problem seems to be that /data isn't being recognized as a directory so rootDir.list() returns null. My device is rooted and I have the following in my manifest

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

What else do I have to do to get this to work ?

Answer 1

I'm trying get my app to get the name of every app on the device

Use PackageManager and methods like getInstalledApplications().

The problem seems to be that /data isn't being recognized as a directory so rootDir.list() returns null.

No, the problem is that you do not have read access to /data.

I have the following in my manifest

There is no such permission defined in Android.

What else do I have to do to get this to work ?

I presume that you can use su to run ls -R or something like that. I suggest that you use PackageManager.