Reactions is a fully customizable control to give people more ways to share their reaction in a quick and easy way.

Requirements • Usage • Installation • Contribution • Contact • License

• iOS 8.0+
• Xcode 9.0+
• Swift 4.2+

A Reaction object is a model defined with these properties:

• id: a unique identifier.
• title: the title displayed either in a selector or a button.
• color: the color used to display the button title.
• icon: the reaction icon.
• alternativeIcon: the optional alternative icon used with the reaction button.

The library already packages the standard Facebook reactions: like, love, haha, wow, sad and angry. And of course you can create your owns:

let myReaction = Reaction(id: "id", title: "title", color: .red, icon: UIImage(named: "name")!)

The ReactionSelector control allows people to select a reaction amongst a list:

let select       = ReactionSelector()
select.reactions = Reaction.facebook.all

// React to reaction change
select.addTarget(self, action: #selector(reactionDidChanged), for: .valueChanged)

func reactionDidChanged(_ sender: AnyObject) {
  print(select.selectedReaction)
}

// Conforming to the ReactionFeedbackDelegate
select.feedbackDelegate = self

func reactionFeedbackDidChanged(_ feedback: ReactionFeedback?) {
  // .slideFingerAcross, .releaseToCancel, .tapToSelectAReaction
}

The component can be used alone (like above) or in conjunction with the ReactionButton (discussed later). You can of course customize the component using a ReactionSelectorConfig object:

select.config = ReactionSelectorConfig {
  $0.spacing        = 6
  $0.iconSize       = 40
  $0.stickyReaction = false
}

A ReactionButton provides a simple way to toggle a reaction (e.g. like/unlike). A ReactionSelector can also be attached in order to display it when a long press is performed:

let button      = ReactionButton()
button.reaction = Reaction.facebook.like

// To attach a selector
button.reactionSelector = ReactionSelector()

You can configure the component using a ReactionButtonConfig object:

button.config         = ReactionButtonConfig() {
  $0.iconMarging      = 8
  $0.spacing          = 4
  $0.font             = UIFont(name: "HelveticaNeue", size: 14)
  $0.neutralTintColor = UIColor(red: 0.47, green: 0.47, blue: 0.47, alpha: 1)
  $0.alignment        = .left
}

The ReactionSummary is a control which display a given reaction list as a set of unique icons superimposed. You can also link it to a text description.

let summary       = ReactionSummary()
summary.reactions = Reaction.facebook.all
summary.text      = "You, Chris Lattner, and 16 others"

// As is a control you can also react to the .touchUpInside event
select.addTarget(self, action: #selector(summaryDidTouched), for: .touchUpInside)

You can also have the details for each reaction. For that you'll need to uncombined them by setting the isAggregated config property to false.

summary.config = ReactionSummaryConfig {
  $0.isAggregated = false
}

Like the other components you can setting it using a ReactionSummaryConfig object:

summary.config = ReactionSummaryConfig {
  $0.spacing      = 8
  $0.iconMarging  = 2
  $0.font         = UIFont(name: "HelveticaNeue", size: 12)
  $0.textColor    = UIColor(red: 0.47, green: 0.47, blue: 0.47, alpha: 1)
  $0.alignment    = .left
  $0.isAggregated = true
}

Install CocoaPods if not already available:

$ [sudo] gem install cocoapods
$ pod setup

Go to the directory of your Xcode project, and Create and Edit your Podfile and add Reactions:

$ cd /path/to/MyProject
$ touch Podfile
$ edit Podfile
source 'https://github.com/CocoaPods/Specs.git'
platform :ios, '8.0'

use_frameworks!
pod 'Reactions', '~> 3.0.0'

Install into your project:

$ pod install

Open your project in Xcode from the .xcworkspace file (not the usual project file):

$ open MyProject.xcworkspace

You can now import Reactions framework into your files.

Carthage is a decentralized dependency manager that automates the process of adding frameworks to your Cocoa application.

You can install Carthage with Homebrew using the following command:

$ brew update
$ brew install carthage

To integrate Reactions into your Xcode project using Carthage, specify it in your Cartfile file:

github "yannickl/Reactions" >= 3.0.0

You can use The Swift Package Manager to install Reactions by adding the proper description to your Package.swift file:

import PackageDescription

let package = Package(
    name: "YOUR_PROJECT_NAME",
    targets: [],
    dependencies: [
        .Package(url: "https://github.com/yannickl/Reactions.git", versions: "3.0.0" ..< Version.max)
    ]
)

Note that the Swift Package Manager is still in early design and development, for more information checkout its GitHub Page.

Download the project and copy the Sources and Resources folders into your project to use it in.

Contributions are welcomed and encouraged ♡.

Yannick Loriot

• https://21.co/yannickl/
• https://twitter.com/yannickloriot

Copyright (c) 2016-present - Yannick Loriot

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.