In my app I have a storyboard and I use "autolayout" option; The problem is if I move some UIImageView with an animation in this way:
[UIView animateWithDuration:1.0 animations:^{
[image setCenter:CGPointMake(300,200)];
}];
when the animation finish the image return in the original position, why??? If I not check autolayout option it work fine. Can you tell me if I can manage animation with autolayout? And what's the way to do it?
FIRST RULE OF AUTOLAYOUT! You cannot change the frame or centre of views using AutoLayout.
In order to animate a view you have to set up a constraint that you will use to animate it and then change the constraint.
i.e.
self.heightConstraint = [NSLayoutConstraint constraintWithItem:self.theView
attribute:
relatedBy:
toItem:
attribute:
multiplier:
constant:];
// set up the rest
[self.view addConstraint:self.heightConstraint];
Then to animate it...
self.heightConstraint.constant = 20;
[UIView animateWithDuration:2.0
animations:^() {
[self.view layoutIfNeeded];
}];
