Puck pulsingEnabled option prevents any MapIdleEventData, and onMapIdleListener never called

[tiyberius]

I've noticed a bug when setting pulsingEnabled: true when updating the location settings and trying to use the onMapIdleListener. Enabling the puck and the pulsingEnabled: true option prevents the function registered to onMapIdleListener from ever being called. Disabling pulsingEnabled: true seems to allow onMapIdleListener to be called once again.

Steps to reproduce:

1. Clone the Mapbox Maps Flutter Example app (https://github.com/mapbox/mapbox-maps-flutter/tree/main/example)
2. In full_map.dart, change these lines to
   _onMapCreated(MapboxMap mapboxMap) { this.mapboxMap = mapboxMap; mapboxMap.style; mapboxMap.location.updateSettings(LocationComponentSettings( enabled: true, pulsingEnabled: true, )); }
3. This will cause (at least in my case) a continuous flow of the following events to be fired and printed to the console:

...
flutter: RenderFrameStartedEventData: timestamp: 1719875698054876
flutter: RenderFrameFinishedEventData: time: EventTimeInterval begin: 2024-07-02 11:14:58.054874, end: 2024-07-02 11:14:58.055839
flutter: RenderFrameStartedEventData: timestamp: 1719875698070221
flutter: RenderFrameFinishedEventData: time: EventTimeInterval begin: 2024-07-02 11:14:58.070220, end: 2024-07-02 11:14:58.071073
flutter: RenderFrameStartedEventData: timestamp: 1719875698088363
flutter: RenderFrameFinishedEventData: time: EventTimeInterval begin: 2024-07-02 11:14:58.088361, end: 2024-07-02 11:14:58.089881
flutter: RenderFrameStartedEventData: timestamp: 1719875698104621
flutter: RenderFrameFinishedEventData: time: EventTimeInterval begin: 2024-07-02 11:14:58.104616, end: 2024-07-02 11:14:58.106572
...

4. I believe this is preventing the onMapIdleListener from ever being called, because the map is never "idle".

Here is my environment:

flutter --version
Flutter 3.22.2 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 761747bfc5 (4 weeks ago) • 2024-06-05 22:15:13 +0200
Engine • revision edd8546116
Tools • Dart 3.4.3 • DevTools 2.34.3

I confirmed that the same behavior occurs when using mapbox_maps_flutter: ^2.0.0, and running the example app having cloned it from the repository a few days ago (in which case, I believe that means I had the latest version).

If this is a known issue and there is a workaround, please let me know!

Also let me know if you need any more details.

Cheers,

Tobias

[evil159]

Hi @tiyberius, I think this is expected behavior, after pulsing is enabled the map is actually never at idle as it has to redraw constantly in order to execute pulsing animation.