Move view from one GroPoint to other

Issue

My MapView contains child view added by addView() with LayoutParams:

new MapView.LayoutParams(MapView.LayoutParams.WRAP_CONTENT, MapView.LayoutParams.WRAP_CONTENT, geoPoint, 0, 0, MapView.LayoutParams.BOTTOM | MapView.LayoutParams.LEFT)

I can get screen point of my view:

Point p1 = mapView.getProjection().toPixels(geoPoint, null);

When geoPoint changes I remove all childs of mapView and then add my view with new LayoutParams (based on new geoPoint) and get new on screen point:

Point p2 = mapView.getProjection().toPixels(newGeoPoint, null);

Now I need to translate view from p1 to p2, I try:

Animation animation = new TranslateAnimation(
                Animation.ABSOLUTE, p1.x, 
                Animation.ABSOLUTE, p2.x, 
                Animation.ABSOLUTE, p1.y, 
                Animation.ABSOLUTE, p2.y);
animation.setDuration(1500);
myView.startAnimation(animation);

Animation plays but from wrong point to wrong point.

How can I make correct translate animation from p1 to p2.

Solution

Try this:

Animation animation = new TranslateAnimation(0, p1.x - p2.x, 0, p1.y - p2.y);
animation.setDuration(1500);
myView.startAnimation(animation);

And finally do not forget to set your point's new position, otherwise it'll turn back to ex position when animation is finished.

Answered By - yahya