exec(“su”) permission denied?

问题

when I use this code

Runtime.getRuntime().exec("su").

and listen to the ErrorStream it gives me back: Permission denied. However SuperUser successfully grants permissions. Any Ideas?

回答1:

You need to add to your AndroidManifest.xml

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

回答2:

My ROM was messed up. I had to reinstall it. Adding a permission should NOT help. Edit: SuperUser is now giving warning if you don't define the permission, how ever it will still grant su.

来源：https://stackoverflow.com/questions/11283002/execsu-permission-denied