Move marker with gps in google map android

Question

I want to make move of the marker in GOOGLE MAP while gps location changes just like in UBER app. I have found some solutions but unab

Answer 1

This can be done using CameraPosition, googleMap.animateCamera and marker movement animation using linear interpolator.

You can take a look at this tutorial here and the respective github page.

This tutorial uses google maps v2. Hope this helps.

Answer 2

Inorder to animate just call this method (animateMarker) with previous location and new location along with Marker object

private Marker mCurrentMarker;
private float ZOOMLEVEL=18.0f;
private LatLng previousLatLon;
private Handler mLocalHandler;
private GoogleMap mGoogleMap;

public void animateMarker(final Marker marker, final LatLng toPosition,final LatLng fromPosition) {


        final long duration = 500;
        final Interpolator interpolator = new LinearInterpolator();

        mLocalHandler.post(new Runnable() {
            @Override
            public void run() {
                long elapsed = SystemClock.uptimeMillis() - mStartTime;
                float t = interpolator.getInterpolation((float) elapsed
                        / duration);
                marker.setPosition(toPosition);
                marker.setAnchor(Constants.MAPANCHOR, Constants.MAPANCHOR);
                mGoogleMap.animateCamera(CameraUpdateFactory.newLatLngZoom(toPosition, ZOOMLEVEL));
                if (t < 1.0) {
                    // Post again 16ms later.
                    mLocalHandler.postDelayed(this, 16);
                } else {
                    marker.setVisible(true);
                }
                }
            }
        });
        previousLatLon=toPosition;// reassign the previous location to current location
    }