cordova-android: grantResults empty in onRequestPermissionResult?

[GitToTheHub]

Hi,

one user reported a crash in cordova-plugin-local-noitifications PR#2058. An ArrayIndexOutOfBoundsException occured by accesing grantResults in onRequestPermissionResult. Can it be possible, that grantResults is empty?

I'm talking about CordovaPlugin.java#onRequestPermissionResult:
https://github.com/apache/cordova-android/blob/a1ed1c0af7c6267f47e580e8850295202692f4ea/framework/src/org/apache/cordova/CordovaPlugin.java#L421

Regards, Manuel

[infil00p]

Yes, it's totally possible if the user doesn't approve or deny the permission. This can happen if the user taps literally anywhere but the modal that pops up.

https://developer.android.com/reference/android/app/Activity.html#onRequestPermissionsResult(int,%20java.lang.String[],%20int[])

[GitToTheHub]

Hi,

thank you, I didn't know this can happen and also didn't know, that this method is a Android method and not a Cordova only method.

I tested it on an Android 15 emulator to dismiss the permission request dialog by typing outside the permission dialog, but I couldn't dismiss it. Tipping the back button dismissed it, but the grantResult was given. The documentation says:

It is possible that the permissions request interaction with the user is interrupted. In this case you will receive empty permissions and results arrays which should be treated as a cancellation.

So it can occur, when the permission request interaction was interrupted or I could guess, it can be dismissed by tipping somewhere else on older Android versions or on a manufacture modified OS.

Thank you really much!!

Regards,

Manuel