Issue on removing item from clustermanager

Question

In my Android application, I have to delete and re-add a cluster item in my GoogleMap, that represents my current location. But when I run this code:

cluster         


        

Answer 1

Here is how I did it:

@Override
public void removeItem(T item) {
    final QuadItem quadItem = new QuadItem(item);
    synchronized (mQuadTree) {
        mItems.remove(quadItem);
        mQuadTree.remove(quadItem);
    }
}

I also implemented equals() and hashCode() in QuadItem as it is recommended in the TODO of the NonHierarchicalDistanceBasedAlgorithm source code:

@Override
public boolean equals(Object o) {
    if (this == o) {
        return true;
    }
    if (!(o instanceof QuadItem)) {
        return false;
    }

    QuadItem quadItem = (QuadItem) o;

    return mClusterItem.equals(quadItem.mClusterItem);

}

@Override
public int hashCode() {
    return mClusterItem.hashCode();
}

Finally, I implemented equals() and hashCode() in my ClusterItem's descendant class.