Awesome

ScratchCard

Requirements

iOS 8.0+
Xcode 8.0+ Swift 3

Installation

CocoaPods

Check out Get Started tab on cocoapods.org.

To use ScratchCard in your project add the following 'Podfile' to your project

pod 'ScratchCard', '~> 1.1.3'

Then run:

pod install

Source Code

Copy the ScratchView.swift and ScratchUIView.swift to your project.

Go ahead and import ScratchCard to your file.

Example

Please check out the Example project included.

Usage

Sample:

    import ScratchCard
    
    class ViewController: UIViewController {

    var scratchCard: ScratchUIView!
    override func viewDidLoad() {
        super.viewDidLoad()
        
        scratchCard  = ScratchUIView(frame: CGRect(x:50, y:80, width:320, height:480),Coupon: "image.jpg", MaskImage: "mask.png", ScratchWidth: CGFloat(40))
        
        self.view.addSubview(scratchCard)
        }
    }

Scratched Percent

It is easy to get the scratched percent.

Sample:

   let scratchPercent: Double = scratchCard.getScratchPercent()

Handle Scratch Event

It is easy to handle the scratch event(ScratchBegan, ScratchMoved, and ScratchEnded).

You can get the Scratch Position in the ScratchCard.

Please set the ScratchUIViewDelegate in your code.

Sample:

class ViewController: UIViewController, ScratchUIViewDelegate {
    
    var scratchCard: ScratchUIView!
    override func viewDidLoad() {
        super.viewDidLoad()

        scratchCard = ScratchUIView(frame: CGRect(x:50, y:80, width:320, height:480), Coupon: "image", MaskImage: "mask", ScratchWidth: CGFloat(40))
        scratchCard.delegate = self
        
        self.view.addSubview(scratchCard)
    }
    
    //Scratch Began Event(optional)
    func scratchBegan(_ view: ScratchUIView) {
        print("scratchBegan")
        
        ////Get the Scratch Position in ScratchCard(coordinate origin is at the lower left corner)
        let position = Int(view.scratchPosition.x).description + "," + Int(view.scratchPosition.y).description
        print(position)

    }
    
    //Scratch Moved Event(optional)
    func scratchMoved(_ view: ScratchUIView) {
        let scratchPercent: Double = scratchCard.getScratchPercent()
        textField.text = String(format: "%.2f", scratchPercent * 100) + "%"
        print("scratchMoved")
        
        ////Get the Scratch Position in ScratchCard(coordinate origin is at the lower left corner)
        let position = Int(view.scratchPosition.x).description + "," + Int(view.scratchPosition.y).description
        print(position)
    }
    
    //Scratch Ended Event(optional)
    func scratchEnded(_ view: ScratchUIView) {
        print("scratchEnded")
        
        ////Get the Scratch Position in ScratchCard(coordinate origin is at the lower left corner)
        let position = Int(view.scratchPosition.x).description + "," + Int(view.scratchPosition.y).description
        print(position)

    }
}

License

ScratchCard is available under the MIT License.