同じ場所にマーカーがある場合、ずらして表示する

covelline · Jan 25, 2024 · 75d07e0 · 75d07e0
1 parent 5518d60
commit 75d07e0
Showing 1 changed file with 13 additions and 9 deletions.
diff --git a/app/radio_qth_map/lib/widget/operation_map.dart b/app/radio_qth_map/lib/widget/operation_map.dart
@@ -78,16 +78,20 @@ class OperationMapState extends State<OperationMap>
  _operationMarkers =
  operations.fold(<Marker>[], (markerList, operation) {
  final point = operation.location.latLng;
- // 同じ場所にマーカーがある場合、少しずらして表示する
- final LatLng adjustedPoint;
- if (markerList.any((element) => element.point == point)) {
- adjustedPoint = LatLng(
- point.latitude + 0.001,
- point.longitude + 0.001,
- );
- } else {
- adjustedPoint = point;
+ // 同じ場所にマーカーがあるか再帰的にチェックし、重複を防ぐ
+ LatLng distinctMarker(LatLng point) {
+ if (markerList.any((element) => element.point == point)) {
+ final adjustedPoint = LatLng(
+ point.latitude + 0.001,
+ point.longitude + 0.001,
+ );
+ return distinctMarker(adjustedPoint);
+ } else {
+ return point;
+ }
  }
+
+ final LatLng adjustedPoint = distinctMarker(point);
  final marker = Marker(
  point: adjustedPoint,
  child: GestureDetector(