Android: launch main activity when got video call notification when app is closed

[gentlee]

1. Android app is closed (same with minimized on latest android)
2. We receive call start notification with react-native-firebase/messaging
3. We display incoming call with this lib
4. User answers

Expected result:

we open app (MainActivity) with video call.

Actual result:

native call fullscreen is shown
app Is not opened and no idea how to open it from background notification in latest Android.

Any thoughts?

[gentlee]

Here is how I solved it:

This patch adds activityToOpenOnAnswer prop to setup settings (in com.test.app.MainActivity format), which forces opening provided activity when user answers a call. Tested on android 11 and 15 - works perfectly.
Also, it makes additionalPermissions prop optional.

react-native-callkeep+4.3.16.patch