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iOS Build an Interactive Story App with Swift 2 Refactoring the Model Layer Modifying Constraints

Eric Hodgins
Eric Hodgins
29,207 Points
Posted by Eric Hodgins
Eric Hodgins
29,207 Points

Why does increasing the time value in animationWithDuration do nothing when the keyboard is animating at the same time?

UIView.animateWithDuration(0.8) { self.textFieldBottomConstraint.constant = keyboardFrame.size.height + 10 self.view.layoutIfNeeded() }

Changing 0.8 to any other number doesn't seem to change anything.

1 Answer

Gavin Maxwell
Gavin Maxwell
3,521 Points
Gavin Maxwell
Gavin Maxwell
3,521 Points

If I change it to 5.0 I see a significant difference when the keyboard comes up - it jumps up quickly to initially get out of the way of the keyboard, but then takes the rest of the 5 seconds to settle into it's final resting place... if you're only changing by small amounts you're might not notice the difference, but 5.0 is clearly noticeable.

Hope this helps.

Eric Hodgins
Eric Hodgins
29,207 Points
Eric Hodgins
Eric Hodgins
29,207 Points

Thanks Gavin, I tried anything between 0 and 1000 and it made no difference. But if I trigger the animation separate from the keyboard notification method it works as expected. For example in viewDidAppear. But for some reason when the keyboard's animating and the textfield is animating it doesn't work they way I thought it would.