How does one implement drag and drop for Android marker?

user_455479 0
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Hi? I am working on a MapView app in Android. I have three markers that I want to be able to use the Google Map API getlocation-function on, later on. In order to try it out I would like to move the marker with a drag and drop-function, and then check the location.

Anyone who has gotten a drag and drop to work on an android marker, or know a way to start figuring it out?

/AK

marker drag-and-drop android-mapview android
6 Answers

Implement Google Maps Android API v2, refer this: https://developers.google.com/maps/documentation/android/ and set on GoogleMap object setOnMarkerDragListener. For Ex:

map.setOnMarkerDragListener(new OnMarkerDragListener() {
        @Override
        public void onMarkerDragStart(Marker arg0) {
            // TODO Auto-generated method stub
            Log.d("System out", "onMarkerDragStart..."+arg0.getPosition().latitude+"..."+arg0.getPosition().longitude);
        }

        @SuppressWarnings("unchecked")
        @Override
        public void onMarkerDragEnd(Marker arg0) {
            // TODO Auto-generated method stub
            Log.d("System out", "onMarkerDragEnd..."+arg0.getPosition().latitude+"..."+arg0.getPosition().longitude);

            map.animateCamera(CameraUpdateFactory.newLatLng(arg0.getPosition()));
        }

        @Override
        public void onMarkerDrag(Marker arg0) {
            // TODO Auto-generated method stub
            Log.i("System out", "onMarkerDrag...");
        }
    });

//Don't forget to Set draggable(true) to marker, if this not set marker does not drag.

map.addMarker(new MarkerOptions()
    .position(crntLocationLatLng)
    .icon(BitmapDescriptorFactory.fromResource(R.drawable.icon_my_location))
    .draggable(true));
user_29782050

Below is the answer to Kotlin Lover! It's quite very simple! As you can see below.

   googleMap.addMarker(
        MarkerOptions()
            .position(latLatLng).draggable(true)
    )

Below is the liner code for getting the end dragging location

   mMap.setOnMarkerDragListener(object : GoogleMap.OnMarkerDragListener {
        override fun onMarkerDragStart(arg0: Marker) {

        }

        override fun onMarkerDragEnd(arg0: Marker) {
            mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(arg0.position, 1.0f))
            val message = arg0.position.latitude.toString() + "" + arg0.position.longitude.toString()
            Log.d(TAG + "_END", message)
        }

        override fun onMarkerDrag(arg0: Marker?) {
            val message = arg0!!.position.latitude.toString() + "" + arg0.position.longitude.toString()
            Log.d(TAG + "_DRAG", message)
        }
    })
user_31974680
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