     state.autocapitalizationType = .allCharacters
     return state
   }()
+  let stateController: MDCTextInputControllerDefault
 
   let zip: MDCTextField = {
     let zip = MDCTextField()

    scrollView.addSubview(stateZip)

    stateZip.addSubview(state)
    let stateController = MDCTextInputControllerDefault(textInput: state)
    state.delegate = self
    allTextFieldControllers.append(stateController)


                                                  options: [],
                                                  metrics: nil,
                                                  views: stateZipViews)
    constraints += NSLayoutConstraint.constraints(withVisualFormat: "V:|[zip]|",
                                                  options: [],
                                                  metrics: nil,
                                                  views: stateZipViews)

    NSLayoutConstraint.activate(constraints)
  }
