How to save longitude and latitude from the marker i set on the map

Question

I know how to set location from coordinates and when the maps activity starts it will jump to those coordinates but i want the user to be able to set a marker on the map and save the coordinates into some variables but i have no idea how to do that. Kindly point me in the right direction.

  public void onMapReady(GoogleMap googleMap) {
        mMap = googleMap;
        LatLng sydney = new LatLng(-34, 151);
        mMap.addMarker(new MarkerOptions()
                .position(sydney)
                .title("Marker in Sydney"));
        mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
    }

Added some pics for full view of my code. I am sorry im really new into this maps stuff. Every comment will help me learn more about this.

Answer 1

Set up a global variable for your activity

private LatLng myLatLng;

Next, you need to set up a marker drag listener for your map

map.setOnMarkerDragListener(new GoogleMap.OnMarkerDragListener() {
                @Override
                public void onMarkerDragStart(Marker marker) {
                    
                }

                @Override
                public void onMarkerDrag(Marker marker) {

                }

                @Override
                public void onMarkerDragEnd(Marker marker) {

                     myLatLng = marker.getPosition();

                }
});

If you want to save the marker as a variable...

private Marker myMarker;
private LatLng myLatLng;


myMarker = mMap.addMarker(new MarkerOptions()
                   .position(sydney)
                   .title("Marker in Sydney"));

myLatLng = myMarker.getPosition();

Answer 2

只需将您的最后一行替换为

mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(sydney, 15));

Answer 3

First add marker on map

private void setUpMap()
    {
        .......
        googleMap.setOnMarkerClickListener(this);

        myMarker = googleMap.addMarker(new MarkerOptions()
                    .position(latLng)
                    .title("My Spot")
                    .snippet("This is my spot!")
                    .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_AZURE)));
        ......
    }

then use this code to get marker location

  @Override
    public void onMarkerDragEnd(Marker marker) {
        // TODO Auto-generated method stub
        Toast.makeText(
                MainActivity.this,
                "Lat " + map.getMyLocation().getLatitude() + " "
                        + "Long " + map.getMyLocation().getLongitude(),
                Toast.LENGTH_LONG).show();
        System.out.println("yalla b2a "
                + map.getMyLocation().getLatitude());
    }