Question

I am trying to rename the SystemUI.apk in the directory /system/app to something else on my rooted device (Tablet with ICS) just like Root Browser is able to.
It doesn’t work the same way as it works in the /sdcard directory. I tried this:

String s = "/system/app";
File from = new File(s, "SystemUI.apk");
File to = new File(s, "_SystemUI.apk");
from.renameTo(to);

(This code works for file in SD-Card)

And I set the permission to write to the external storage:

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

However, there is no such permission for the “internal” storage. Do I need to do this via Runtime.getRuntime().exec(some command)?

Thanks for any help.

Answer 1

You need root access, this can not be done with standard java classes.

Run this commands via SU binary

mv /system/app/SystemUI.apk /system/app/_SystemUI.apk

Obviously you can change the cmd as need to do what you need.