private void resetMarkersOverlay() {
if (mMarkersOverlay != null) {
mMarkersOverlay.removeAllItems();
mMapView.removeOverlay(mMarkersOverlay);
}
mMarkersOverlay =
new ItemizedDraggableIconOverlay(
getActivity().getApplicationContext(),
new ArrayList<Marker>(),
new ItemizedIconOverlay.OnItemGestureListener<Marker>() {
@Override
public boolean onItemSingleTapUp(int index, Marker item) {
mMapView.selectMarker(item);
return true;
}
@Override
public boolean onItemLongPress(int index, Marker item) {
mMapViewListener.onLongPressMarker(mMapView, item);
return true;
}
});
mMarkersOverlay.setMarkerDragListener(mMarkerDragHandler);
mMapView.addItemizedOverlay(mMarkersOverlay);
}
@Override
public void updateMarker(MarkerInfo markerInfo, boolean isDraggable) {
// if the drone hasn't received a gps signal yet
final Coord2D coord = markerInfo.getPosition();
if (coord == null) {
return;
}
final LatLng position = DroneHelper.CoordToLatLng(coord);
Marker marker = mBiMarkersMap.getValue(markerInfo);
if (marker == null) {
marker = new Marker(mMapView, markerInfo.getTitle(), markerInfo.getSnippet(), position);
mMarkersOverlay.addItem(marker);
mBiMarkersMap.put(markerInfo, marker);
} else {
marker.setTitle(markerInfo.getTitle());
marker.setDescription(markerInfo.getSnippet());
marker.setPoint(position);
}
// Update the marker
final Resources res = getResources();
Bitmap markerIcon = markerInfo.getIcon(res);
if (markerIcon == null) {
markerIcon = BitmapFactory.decodeResource(res, R.drawable.ic_action_location);
}
marker.setIcon(new Icon(new BitmapDrawable(res, markerIcon)));
marker.setAnchor(new PointF(markerInfo.getAnchorU(), markerInfo.getAnchorV()));
marker.invalidate();
mMapView.invalidate();
}
private void removeMarkersOverlay(List<Marker> markers) {
if (mMarkersOverlay != null) {
mMarkersOverlay.removeItems(markers);
}
}