UIView animation jumps at beginning

None of the solutions here worked for me... My animation would always skip. (except when it was right at the end of another animation, hint).

Some details:

The view that was doing this had a series of scale and translates already in the stack.

Solution:

Doing a keyframe animation, with a super short first key that would basically re apply the transform that that the last animation should have set.

    UIView.animateKeyframesWithDuration(0.4, delay: 0.0, options: [.CalculationModeCubic], animations: { () -> Void in
        //reset start point
        UIView.addKeyframeWithRelativeStartTime(0.0, relativeDuration: 0.01, animations: { () -> Void in
            self.element.transform = initialTransform
        })

        UIView.addKeyframeWithRelativeStartTime(0.01, relativeDuration: 0.99, animations: { () -> Void in
            self.element.transform = finalTransform
        })
    }, completion: nil)

I had the exact same problem so here is the solution I came up with.

    CGAffineTransform transform = CGAffineTransformMake(1, 0, 0, 1, translation.x, translation.y);
    [UIView animateWithDuration:0.25 animations:^{
        _assetImageView.transform = transform;
        [self.view layoutIfNeeded];
    } completion:^(BOOL finished) {
    }];

So I call [self.view layoutIfNeeded]; inside of the animate block. Without this the it has the same problem as you and jumps the distance negative translation first then animates to the correct position from there. I am calling this from a view controller so self is a sub class of UIViewController. In your case "self.view" may not exist but I hope you get the idea.

OK, having watched the WWDC videos again they state that one of the first things you have to do when using AutoLayout is to remove any calls for setFrame.

Due to the complexity of the screen I have removed the Auto-Layout completely and I'm now using the frame location to move the view around the screen.

Thanks