Animating UILabel size decrease

Question

When increasing the height of label, everything is fine and smooth. When decreaseing, the label is instantly changing the size then repositioning with animation.

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Answer 1

I think what you are wanting to change is the bounds, rather than the frame. From the docs:

"The bounds rectangle determines the origin and scale in the view’s coordinate system within its frame rectangle and is measured in points. Setting this property changes the value of the frame property accordingly." - UIView Class; bounds property

Try something like:

- (void)animate:(id)sender
{
    ...
    CGRect newBounds = testLabel.bounds;
    newBounds.size.height += 50;
    testLabel.bounds = newBounds;
    ...
}