onDragStart not firing for Markers for IOS Maps SDK #135778
Description
Is there an existing issue for this?
- I have searched the existing package issues
- I have read the guide to filing a bug
What package does this bug report belong to?
google_maps_flutter
What target platforms are you seeing this bug on?
iOS
Have you already upgraded your packages?
Yes
Dependency versions
pubspec.lock
google_maps_flutter_ios:
dependency: transitive
description:
path: "packages/google_maps_flutter/google_maps_flutter_ios"
relative: true
source: path
version: "2.2.2"
Steps to reproduce
Add Google Maps Flutter.
Add marker to map and enable dragging.
All drag events except onDragStart fire.
Expected results
onDragStart should fire when long press on marker.
Actual results
onDragStart does not fire at all.
Code sample
Solution
There is a misspelling in the Google Maps IOS SDK plugin code: GoogleMapController.m - didStartDraggingMarker should be didBeginDraggingMarker according to the Google Maps IOS SDK reference.
- (void)mapView:(GMSMapView *)mapView didStartDraggingMarker:(GMSMarker *)marker {
NSString *markerId = marker.userData[0];
[self.markersController didStartDraggingMarkerWithIdentifier:markerId location:marker.position];
}
- (void)mapView:(GMSMapView *)mapView didBeginDraggingMarker:(GMSMarker *)marker {
NSString *markerId = marker.userData[0];
[self.markersController didStartDraggingMarkerWithIdentifier:markerId location:marker.position];
}
This fix is confirmed working on my project.
Code sample
Marker(
markerId: MarkerId('markerItem_private_${marker.markerId}'),
position: LatLng(marker.latitude, marker.longitude),
icon: BitmapDescriptor.fromBytes(iconBytes),
draggable: true,
anchor: Offset(icon.anchorOffsetX, icon.anchorOffsetY),
rotation: marker.rotation,
zIndex: Zindex.marker.toDouble(),
onDrag: (value) {
appData.isDraggingMapMarker = true;
debugprint('### onDrag: ${value.latitude}, ${value.longitude}');
},
onDragStart: (value) {
debugprint(
'### onDragStart: ${value.latitude}, ${value.longitude}');
appData.isDraggingMapMarker = true;
appData.bottomSheetController?.close();
},
onDragEnd: (value) {
debugprint('### onDragEnd: ${value.latitude}, ${value.longitude}');
appData.isDraggingMapMarker = false;
marker.latitude = value.latitude;
marker.longitude = value.longitude;
marker.updateMarkerItem();
},
onTap: () {
debugprint('### onTap: ${marker.latitude}, ${marker.longitude}');
appData.bottomSheetController =
appData.scaffoldKey.currentState?.showBottomSheet(
elevation: 10,
enableDrag: true,
shape: AppTheme.shapeBorderModal,
(context) => UiMarkerItemBottomSheet(marker: marker),
);
},
);Screenshots or Videos
No response
Logs
No response
Flutter Doctor output
Doctor output
Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel stable, 3.13.3, on Microsoft Windows [Version 10.0.22621.2361], locale en-AU)
[√] Windows Version (Installed version of Windows is version 10 or higher)
[√] Android toolchain - develop for Android devices (Android SDK version 33.0.1)
[√] Chrome - develop for the web
[√] Visual Studio - develop Windows apps (Visual Studio Community 2022 17.0.2)
[√] Android Studio (version 2022.3)
[√] IntelliJ IDEA Ultimate Edition (version 2023.2)
[√] VS Code (version 1.82.2)
[√] Connected device (4 available)
[√] Network resources
• No issues found!Metadata
Metadata
Assignees
Labels
Important issues not at the top of the work listFound to occur in 3.13Found to occur in 3.15Relatively approachable for first-time contributorsThe issue has been confirmed reproducible and is ready to work onGoogle Maps pluginflutter/packages repository. See also p: labels.iOS applications specificallyIssue is closed as already fixed in a newer versionOwned by iOS platform teamTriaged by iOS platform team