I'm making a 2D isometric tiled game using LibGDX. In my Player class, I created a vector2 that I named 'pos' to manage the player position, then I draw my Player with:
Basim Khajwal was right,
calling batch.setProjectionMatrix(camera.combined) works perfectly :)
However if you are looking for a deeper comprehension you can also read this article here:
Where "view position" is your screen position and "model position" is your map position.