Programming language: Swift
License: MIT License
Tags: Chat    
Latest version: v5.2.2

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  • [x] Autocomplete text with @mention, #hashtag or any other prefix
  • [x] A self-sizing UITextView with an optional fixed height (can be replaced with any other view)
  • [x] Image paste support
  • [x] Autocomplete attributed text highlighting
  • [x] Reactive components that respond to given events
  • [x] Top/Bottom/Left/Right InputStackViews that act as toolbars to place buttons
  • [x] Drop in attachment view for file/photo management
  • [x] Plugin support for your own InputPlugins
  • [x] Compatible with all iPhones and iPads
  • [x] RTL Support

Installation via Swift Package Manager (SPM)

The Swift Package Manager is a tool for automating the distribution of Swift code and is integrated into the swift compiler. Once you have your Swift package set up, adding InputBarAccessoryView as a dependency is as easy as adding it to the dependencies value of your Package.swift.

dependencies: [
    .package(url: "https://github.com/nathantannar4/InputBarAccessoryView.git", .upToNextMajor(from: "6.0.0"))

You can also add it via Xcode SPM editor with URL:



iOS 13.0+ Swift 5.5

The latest iOS 12 release is v5.5.0

CocoaPods and RxExtensions were removed in 6.0.0

The latest iOS 11 release is v5.1.0

The latest Swift 5.0 release is v5.1.0

The latest Swift 4.2 release is v4.2.2


[Getting Started](./GETTING_STARTED.md)

See the Example project to see how you can make the iMessage, Slack, Facebook and GitHawk input bars!

Example Usage

Featured In

Add your app to the list of apps using this library and make a pull request.

See Also

iMessage style TypingIndicator for chat apps

Latest Releases


  • Remove canBecomeFirstResponder on InputTextView to fix UITextViewDelegate methods not being called


  • Fixed warning for Xcode 14


  • #230 Added additionalInputViewBottomConstraintConstant to KeyboardManager as a way for providing additional bottom constraint constant offset for inputAccessoryView. Example implementation can be found in AdditionalBottomSpaceExampleViewController


  • Breaking change: Drop iOS 12 support
  • Breaking change: Drop CocoaPods support & RxSwift extension (it was available only via CocoaPods)
  • KeyboardManager will not update position of inputAccessoryView from interactive dismiss panGesture when the keyboard is floating
  • Update docs


  • Update SPM tools to Swift 5.5
  • Added new optional delegate method for custom attachments size
  • Added new animations for left/right stack view constraints


  • Make sure framework is ready for Xcode 13
  • Fix availability in AppExtensions
  • Fix Package.swift to support iOS 12+ only

See [CHANGELOG](./CHANGELOG.md) for more details and older releases.

Find a bug? Open an issue!


The layout of the InputBarAccessoryView is made of of 4 InputStackView's and an InputTextView. The padding of the subviews can be easily adjusted by changing the padding and textViewPadding properties. The constraints will automatically be updated.

It is important to note that each of the InputStackView's to the left and right of the InputTextView are anchored by a width constraint. This way the InputTextView will always fill the space inbetween in addition to providing methods that can easily be called to hide all buttons to the right or left of the InputTextView by setting the width constraint constant to 0. The bottom and top stack views are not height constraint and rely on their intrinsicContentSize

func setLeftStackViewWidthConstant(to newValue: CGFloat, animated: Bool)

func setRightStackViewWidthConstant(to newValue: CGFloat, animated: Bool)

Reactive Hooks

Each InputBarButtonItem has properties that can hold actions that will be executed during various hooks such as the button being touched, the UITextViewtext changing and more! Thanks to these easy hooks with a few lines of code the items can be easily resized and animated similar to that of the Facebook messenger app.

// MARK: - Hooks

public typealias InputBarButtonItemAction = ((InputBarButtonItem) -> Void)    

private var onTouchUpInsideAction: InputBarButtonItemAction?
private var onKeyboardEditingBeginsAction: InputBarButtonItemAction?
private var onKeyboardEditingEndsAction: InputBarButtonItemAction?
private var onKeyboardSwipeGestureAction: ((InputBarButtonItem, UISwipeGestureRecognizer) -> Void)?
private var onTextViewDidChangeAction: ((InputBarButtonItem, InputTextView) -> Void)?
private var onSelectedAction: InputBarButtonItemAction?
private var onDeselectedAction: InputBarButtonItemAction?
private var onEnabledAction: InputBarButtonItemAction?
private var onDisabledAction: InputBarButtonItemAction?


Nathan Tannar - https://nathantannar.me Jakub Kaspar - https://jakubkaspar.dev


Distributed under the MIT license. See LICENSE for more information.

*Note that all licence references and agreements mentioned in the InputBarAccessoryView README section above are relevant to that project's source code only.