I am facing an issue right now I am developing an Android app similar to Uber or lyft but the problem that I am facing is the car is moving on the map smoothly but sometimes it is revolving at 360 degree at one position, I need to stop that please help, here is my animation code.
 

private void animateMarkr(double laat, double lnng,Location prevLocation) {
        final LatLng toPosition=new LatLng(laat,lnng);
        final Handler handler = new Handler();
        final long start = SystemClock.uptimeMillis();
        Projection proj = mGoogleMap.getProjection();
        Point startPoint = proj.toScreenLocation(carMarker.getPosition());
        final LatLng startLatLng = proj.fromScreenLocation(startPoint);
        final long duration = 3000;
        final boolean hideMarker=false;
        final Interpolator interpolator = new LinearInterpolator();

        handler.post(new Runnable() {
            @Override
            public void run() {
                long elapsed = SystemClock.uptimeMillis() - start;
                LatLng pre=carMarker.getPosition();
                float t = interpolator.getInterpolation((float) elapsed / duration);
                double lng = t  toPosition.longitude + (1 - t)  startLatLng.longitude;
                double lat = t  toPosition.latitude + (1 - t)  startLatLng.latitude;
              //  carMarker.setRotation(getBearing(pre,new LatLng(lat,lng)));
                carMarker.setPosition(new LatLng(lat, lng));


                if (t < 1.0) {
               
                    handler.postDelayed(this, 20);
                } else {

                    if (hideMarker) {
                        carMarker.setVisible(false);
                    } else {
                        carMarker.setVisible(true);
                    }
                }
            }
        });

    }


//Here is my Rotation Code

    private void rotateMarker(Location location,Location preLocation){
        Location prevLocation = new Location(LocationManager.GPS_PROVIDER);
        prevLocation.setLatitude(carMarker.getPosition().latitude);
        prevLocation.setLongitude(carMarker.getPosition().longitude);
        final float toRotation = prevLocation.bearingTo(location);
               performRotaion(toRotation);
      }

    private void performRotaion(final float toRotation){
        if(!isMarkerRotating) {
            final Handler handler = new Handler();
            final long start = SystemClock.uptimeMillis();
            final float startRotation = carMarker.getRotation();
            final float totalDegree=0;
            final long duration = 1000;

            final Interpolator interpolator = new LinearInterpolator();

            handler.post(new Runnable() {
                @Override
                public void run() {
                    isMarkerRotating = true;

                    long elapsed = SystemClock.uptimeMillis() - start;
                    float t = interpolator.getInterpolation((float) elapsed / duration);

                    float rot = t  toRotation + (1 - t)  startRotation;

                    if(carMarker != null){
                        carMarker.setAnchor(0.5f, 0.5f);
                        // if(rot<0.0f  && rot>-355.0f) {
                        carMarker.setRotation(-rot > 180 ? rot / 2 : rot);
                        carMarker.setFlat(true);
                    }

                    if (t < 1.0) {
                        // Post again 16ms later.
                        handler.postDelayed(this, 16);
                    } else {
                        isMarkerRotating = false;
                    }
                }
            });
        }
    }

// method call
rotateMarker(location,previcsLocation);
            animateMarkr(location.getLatitude(), location.getLongitude(),previcsLocation);