Match official requestPermissions interface

[AndreMiras]

The Android API for requesting runtime permission has the following signature:

void requestPermissions (Activity activity,
                String[] permissions,
                int requestCode)

Currently via our PythonActivity.java class, we're providing:

public void requestNewPermission(String permission)

See https://github.com/kivy/python-for-android/blob/02519cc/pythonforandroid/bootstraps/sdl2/build/src/main/java/org/kivy/android/PythonActivity.java#L608
It would be great if our interface was also somewhat matching the official name/signature.

• official documentation ActivityCompat#requestPermissions()
• PR discussion Bump SDL2 to 2.0.9 & Add API >=23 runtime permissions API #1528 (comment)

This would be a non-breaking change since we can keep our current requestNewPermission() method and just add the new requestPermissions() one.

The android module, the only one that directly calls this, is bundled with p4a anyway (in an always-compatible version as a natural consequence). So why would there a need to keep the old signaure around?

[AndreMiras]

Yes that's also a true. Then at least the android permission module should still provide some backward compatible interface. Currently it's def request_permission(permission): and we should also have a def request_permissions(permissions):

yeah for the android module it makes sense to keep both I suppose (request_permission and request_permissions). As for the strings, even the android module also already takes strings, the predefined constants are just for nicer code and don't need to be actually used (but of course it would need to be taught to also take an array of strings)

[AndreMiras]

Yes that's what I mean, it should take an array of string