moving view well by UIPanGestureRecognizer but sometimes goes jumpy

i am moving views by this code, it is moving well but sometimes they are very jumpy, any idea about this ?

[[[(UITapGestureRecognizer*)sender view] layer] removeAllAnimations];



[self.view bringSubviewToFront:[(UIPanGestureRecognizer*)sender view]];

CGPoint translatedPoint = [(UIPanGestureRecognizer*)sender translationInView:self.view];



if([(UIPanGestureRecognizer*)sender state] == UIGestureRecognizerStateBegan) {



    firstX = [[sender view] center].x;

    firstY = [[sender view] center].y;

}



translatedPoint = CGPointMake(firstX+translatedPoint.x, firstY+translatedPoint.y);



[[sender view] setCenter:translatedPoint];



if([(UIPanGestureRecognizer*)sender state] == UIGestureRecognizerStateEnded) {



    CGFloat finalX = translatedPoint.x + (.35*[(UIPanGestureRecognizer*)sender velocityInView:self.view].x);

    CGFloat finalY = translatedPoint.y + (.35*[(UIPanGestureRecognizer*)sender velocityInView:self.view].y);





[UIView beginAnimations:nil context:NULL];

    [UIView setAnimationDuration:.35];

    [UIView setAnimationCurve:UIViewAnimationCurveEaseOut];

    [[sender view] setCenter:CGPointMake(finalX, finalY)];

    [UIView commitAnimations];