Jump animation for a moving player

Hi !

I'm currently working on my first Android game in Unity, and I need some help.
My player is moving by itself through out the level, and when I hit jump I want my player to do a jump animation.
I also use raycasts to check collision, so when the player's in a animation I want it to still check collisions.
My game is a 2D game.

So I've tried using Unity's animation system, but when the animation plays it resets my players position.
Any help would be appreciated !

- Andreas