如何从 Google 地图中的可拖动标记中获取 position？

Question

This is my current method

private void createNewMarker() {
    MarkerOptions AlarmMarker = new MarkerOptions();
    AlarmMarker.position(SearchedLocation).alpha(2).draggable(true)
            .snippet(MessageDataText).title(MessageDataTitle).zIndex(2.0f);
    mMap.addMarker(AlarmMarker);
    mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(SearchedLocation,10));
    mMap.setOnMarkerDragListener(new GoogleMap.OnMarkerDragListener() {
        @Override
        public void onMarkerDrag(@NonNull Marker marker) {

        }

        @Override
        public void onMarkerDragEnd(@NonNull Marker marker) {
            AlarmMarkerLatLng = AlarmMarker.getPosition();
            Toast.makeText(getApplicationContext(), AlarmMarkerLatLng.toString(), Toast.LENGTH_SHORT).show();

        }

        @Override
        public void onMarkerDragStart(@NonNull Marker marker) {

        }
    });


}

This only returns position that my marker was created on and not the updated one...

Answer 1

On your setOnMarkerDragListener, you want to use the local variable 'marker'. Don't try to get the value from outside of the scope.

mMap.setOnMarkerDragListener(new GoogleMap.OnMarkerDragListener() {
        @Override
        public void onMarkerDrag(@NonNull Marker marker) {

        }

        @Override
        public void onMarkerDragEnd(@NonNull Marker marker) {
            Toast.makeText(getApplicationContext(), marker.getPostition.toString(), Toast.LENGTH_SHORT).show();

        }

        @Override
        public void onMarkerDragStart(@NonNull Marker marker) {

        }
    });

The documentation has some really good examples: https://developers.google.com/maps/documentation/android-sdk/marker