A circular progress bar for iOS written in Swift 3

Features

• Interface builder designable
• Highly customizable
• Animation for progress and value text built in
• Written in Swift 3 and using Xcode 8

Installation

CocoaPods (Recommended)

1. Install CocoaPods

2. Add this repo to your Podfile

   target 'Example' do
       # IMPORTANT: Make sure use_frameworks! is included at the top of the file
       use_frameworks!
   
       pod 'UICircularProgressRing'
   end

3. Run pod install
4. Open up the .xcworkspace that CocoaPods created
5. Done!

Note: If you have any issues with Swift 3 and CocoaPods you can try to force the version. (Cocoapods support for Swift 3 projects has been a bit wonky).

Add this to the end of your Podfile

post_install do |installer|
  installer.pods_project.targets.each do |target|
    target.build_configurations.each do |configuration|
      configuration.build_settings['SWIFT_VERSION'] = "3.0"
    end
  end
end

Carthage

Important note: Carthage support for IBDesignable and IBInspectable is broken due to how frameworks work. So if you decide on using Carthage, you will not be able to use IB to design this view. Take a look here for the issue.

To use with Carthage

1. Make sure Carthage is installed

   brew install carthage

2. Add this repo to your Cartfile

   github "luispadron/UICircularProgressRing"

3. Drag the UICircularProgressRing.framework from MyProjDir/Carthage/Builds/iOS/UICircularProgressRing into the General -> Embeded Binaries section of your Xcode project.

Manually

1. Simply download the UICircularProgressRingView.swift, UICircularProgressRingLayer.swift and UICiruclarProgressRingDelegate.swift files from here into your project, make sure you point to your projects target

Usage

Interface Builder

Simply drag a UIView into your storyboard. Make sure to subclass UICircularProgressRingView and that the module points UICircularProgressRing.

Design your heart out

Code

override func viewDidLoad() {
  // Create the view
  let progressRing = UICircularProgressRingView(frame: CGRect(x: 0, y: 0, width: 240, height: 240))
  // Change any of the properties you'd like
  progressRing.maxValue = 50
  progressRing.innerRingColor = UIColor.blue
  // etc ...
}

To set a value and animate the view

// Somewhere not in viewDidLoad (since the views have not set yet, thus cannot be animated)
progressRing.setProgress(value: 49, animationDuration: 2.0) {
  print("Done animating!")
  // Do anything your heart desires...
}

Documentation

Read all about everything there is to know here:

DOCUMENTATION

Example project

Take a look at the example project over here

1. Download it
2. Open the Example.xcworkspace in Xcode
3. Mess around and experiment!

Upcoming enhancements

• Add decreasing animation, currently nothing gets animated when decreasing value
• Better way of handling animation finishing, probably a completion block

License

Copyright (c) 2016 Luis Padron

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.