ClusterMapObjectControllerListener Class Reference

Listener for cluster lifecycle events on ClusterMapObjectController. More...

Public Member Functions
void	onClusterCreated (ClusterMapObjectController controller, ClusterMapObject cluster)
	A new cluster marker appeared.
void	onClusterDestroyed (ClusterMapObjectController controller, int clusterId)
	A cluster marker was removed.

Detailed Description

Listener for cluster lifecycle events on ClusterMapObjectController.

Cluster pick is delivered via PickListener (pickMapObjectAt).

onClusterCreated is called when a cluster appears (at least two icons grouped). onClusterDestroyed is called when a cluster is removed (fewer than two icons remain or controller is cleared).

Definition at line 27 of file cluster_map_object_controller_listener.dart.

Member Function Documentation

onClusterCreated()

void ClusterMapObjectControllerListener.onClusterCreated	(	ClusterMapObjectController	controller,
		ClusterMapObject	cluster )

A new cluster marker appeared.

Parameters

controller	Cluster controller that owns the cluster.
cluster	Newly created cluster. Use getCount() for the initial badge value.

Dart code snippet:

  @override
  void onClusterCreated(ClusterMapObjectController controller, ClusterMapObject cluster) {
    // [dart_ClusterMapObject_addListener]
    cluster.addListener(_clusterChangeListener);
    print('Added cluster change listener, initial count: ${cluster.count}');
    // [dart_ClusterMapObject_addListener]
    _activeCluster = cluster;
  }

onClusterDestroyed()

void ClusterMapObjectControllerListener.onClusterDestroyed	(	ClusterMapObjectController	controller,
		int	clusterId )

A cluster marker was removed.

Parameters

controller	Cluster controller that owned the cluster.
clusterId	Identifier of the destroyed cluster (same as ClusterMapObject getId()).

Dart code snippet:

  @override
  void onClusterDestroyed(ClusterMapObjectController controller, int clusterId) {
    final cluster = _activeCluster;
    if (cluster != null && cluster.id == clusterId) {
      // [dart_ClusterMapObject_removeListener]
      cluster.removeListener(_clusterChangeListener);
      print('Removed cluster change listener');
      // [dart_ClusterMapObject_removeListener]
      _activeCluster = null;
    }
    print('Cluster destroyed, id: $clusterId');
  }

---

The documentation for this class was generated from the following file:

• cluster_map_object_controller_listener.dart