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] RxSwift/RxCocoa Support with RxExtensions Cocoapod subspec
  • [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: "5.2.0"))

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


To make RxSwift/RxCocoa extensions work you need to explicitly import Rx dependencies.

Installation via CocoaPods

# Swift 5.5
pod 'InputBarAccessoryView'

# Swift 5.0
pod 'InputBarAccessoryView', '5.1.0'

Installation via Carthage

# Swift 5.5
github "nathantannar4/InputBarAccessoryView"

# Swift 5.0
github "nathantannar4/InputBarAccessoryView" "5.1.0"


iOS 12.0+ Swift 5.5

The latest iOS 11 release is v5.1.0

The latest iOS 9 + iOS 10 release is v4.3.3

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


  • 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


  • Allow setting canBecomeFirstResponder
  • Fix interactive keyboard dismissal lag
  • Add example implemntation of sendButton animation


  • Fixed appendSpaceOnCompletion inserting space at wrong location


  • Added an optional offset in KeyboardManager.bind(tableView:)
  • Change reuseIdentifier from public to open to allow inheritance
  • Fix send button loading indicator for dark mode
  • Fix iOS 14 UIPasteboard system notification with images


  • Drop support for iOS 11 and bump minimum version to iOS 12+
  • Support Swift 5.3 and higher for XCode 12

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.