prevent inputAccessoryView from displaying when presenting viewController

Question

I have a viewController with an inputAccessoryView that is displayed as below:

override var inputAccessoryView: UIView? {
   get {
       return myInputView
   }
}

override var canBecomeFirstResponder: Bool {
   return true
}

I can easily show and hide this inputAccessoryView by using self.becomeFirstResponder() and self.resignFirstResponder()

The problem I have is when the viewController is first presented (instantiated from storyboard), the inputAccessoryView is visible. I can only dismiss it in viewDidAppear using self.resignFirstResponder(). This shows it moving down with an animation.

I am guessing that a viewController automatically becomes firstResponder when it is presented, but wondering how I can override that before viewWillAppear. There is no effect in putting the self.resignFirstResponder method in viewWillAppear.

Couldn't you load and assign the inputAccessoryView in your view did load? that way it won't be loaded from the nib — Aatish Molasi, Nov 18 '17 at 05:12
the problem is that the viewController is firstResponder and I have no way to undo that until the viewController is on screen. I need to assign the inputAccessoryView in the getter of the inputAccessoryView variable for it to work as I want. — alionthego, Nov 18 '17 at 05:21
Ah, what about hiding it and unhiding it once it disappears. I know, seems hacky — Aatish Molasi, Nov 18 '17 at 05:26
I have done a version of that. Basically I set a bool to indicate when I require the inputAccessoryView. in the getter if the bool is false, I return nil otherwise return the accessoryView. it works fine but I prefer to know how to control the viewController's firstResponder state and have a cleaner solution to this. — alionthego, Nov 18 '17 at 05:28
@alionthego just add a bool property `var firstResponder = false` to your view controller and set it to true inside viewDidAppear method. and change canBecomeFirstResponder method to `override var canBecomeFirstResponder: Bool { return firstResponder }` — Leo Dabus, Nov 18 '17 at 05:28
that is a workable solution but I also have the same problem when popping a pushed viewController back to this viewController. I could modify the firstResponder variable you suggested when pushing but it starts to get a bit messy. I will stick with the bool variable inside the inputAccessoryView getter. btw, coolest profile picture ever! got to put on some rush... — alionthego, Nov 18 '17 at 05:34

prevent inputAccessoryView from displaying when presenting viewController

0 Answers0