---
title: inputAccessoryViewController
framework: uikit
role: symbol
role_heading: Instance Property
path: uikit/uiresponder/inputaccessoryviewcontroller
---

# inputAccessoryViewController

The custom input accessory view controller to display when the responder becomes the first responder.

## Declaration

```swift
var inputAccessoryViewController: UIInputViewController? { get }
```

## Discussion

Discussion This property is typically used to attach an accessory view controller to the system-supplied keyboard that’s presented for UITextField and UITextView objects. The value of this read-only property is nil. If you want to attach custom controls to a system-supplied input view controller (such as the system keyboard) or to a custom input view (one you provide in the inputViewController property), redeclare this property as read-write in a UIResponder subclass. You can then use this property to manage a custom accessory view. When the responder becomes the first responder, the responder infrastructure attaches the accessory view to the appropriate input view before displaying it.

## See Also

### Managing input views

- [inputView](uikit/uiresponder/inputview.md)
- [inputViewController](uikit/uiresponder/inputviewcontroller.md)
- [inputAccessoryView](uikit/uiresponder/inputaccessoryview.md)
- [reloadInputViews()](uikit/uiresponder/reloadinputviews().md)