Marker's onPress doesn't return nativeEvent.position on iOS

[melyux]

Summary

The event from onPress for a Marker doesn't return the position field that's supposed to be inside e.nativeEvent on iOS. This is returned only on Android.

This bug is further evinced on Stack Overflow.

Reproducible sample code

<Marker
  ...
  onPress={(event) => {
   console.log(event.nativeEvent)
  }}
/>

Steps to reproduce

1. Use this project on iOS.
2. Specify an onPress for a Marker
3. See that the event's nativeEvent does not return a position, only coordinates. (it should return both, per the docs)

Expected result

nativeEvent should return a position value.

Actual result

nativeEvent does not return a position value on iOS.

React Native Maps Version

1.10.3

What platforms are you seeing the problem on?

iOS (Google Maps)

React Native Version

0.72.4

What version of Expo are you using?

SDK 48

Device(s)

iPhone 15 Po

Additional information

No response

[mateki0]

Hi @melyux, thanks for reporting this. I think this is a mistake in the documentation because this marker uses GMSMarker underneath and his position property type is CLLocationCoordinate2D. This type has only latitude, longitude and animatableData.

Sources:
https://developer.apple.com/documentation/corelocation/cllocationcoordinate2d
https://developers.google.com/maps/documentation/ios-sdk/reference/interface_g_m_s_marker#property-documentation