How make android app have root permission to access something?

[ccinsz]

Hi, the app need to access something, but it don't have permission, like "com.chaquo.python.PyException: CalledProcessError: Command 'setenforce 0' returned non-zero exit status 1."
How make android app have root permission to access something?

[mhsmith]

For obvious reasons, you can't disable SELinux from within an app. You'll have to do it manually in a root shell.

Or if you explain why you want to disable SELinux, we might be able to suggest another solution.

[ccinsz]

I want to use the app to call up other app and do automated testing. For example, the app can call up "Settings" and click "Storage".

"sendevent /dev/input/event3 3 57 2727" is one command of click events.

[mhsmith]

If all you want to do is open a settings page, then you can do that using an Intent, as shown here. The Toga equivalent of startActivityForResult is intent_result, which is described here, and the names of the different settings pages are all listed here.

However, this doesn't allow you programmatically change any of the settings. And if even if you could generate click events, the positions of the clicks wouldn't be portable between devices anyway. So once you get root access (which there's no standard way of doing), then you might as well change the setting directly at the command line.

Anyway, that's all I know about this area, and this doesn't have anything to do with BeeWare specifically, so if you want more details you'll have to ask in a more general Android programming forum. But I warn you, this is a pretty advanced thing to be attempting in your first mobile app.

[ccinsz]

Got it. Thank you for your help.

[ccinsz]

I find the Intent is not easy for python to get. How to make the right intent?

[mhsmith]

There's an example of creating an Intent here. It's a different kind of Intent, but you should be able to adapt it.