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A masking effect for UIButton.
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README.md

Color Masking Button

Version License Platform

Create a Masking Button

Color Masking Button uses a CGPath as its mask. You can create a CGPath from a SVG file with PocketSVG. Color Masking Button adjusts its frame to the size of the mask's path. To create different sized buttons, initiate with different sized paths.

// Create path
let myPath = PocketSVG.pathFromSVGFileNamed("mySVGFile").takeUnretainedValue()

// Set the origin of the frame, and Color Masking Button will adjust its frame
let myColorMaskingButton = ColorMaskingButton(origin: myOrigin, withPath: myPath, withDirection: .LeftToRight, withForegroundColor: color1, withBackgroundColor: color2)

Documentation

enum MaskingDirection {
    case LeftToRight
    case RightToLeft
    case TopToBottom
    case BottomToTop
}

Defines the possible directions of the masking effect.

Variables

var direction: MaskingDirection

Returns direction of the color mask. (read-only)

var path: CGPath

Returns the path of the color mask. (read-only)

Methods

init(origin: CGPoint, withPath path: CGPath, withDirection direction: MaskingDirection, withForegroundColor foregroundColor: UIColor, withBackgroundColor backgroundColor: UIColor)

Basic instantiation with a CGPath of the mask. Foreground color denotes the initial color inside the mask. Note that Color Masking Button will readjust its frame size to fit the given CGPath.

func addTarget(target: AnyObject?, action: Selector, forControlEvents controlEvents: UIControlEvents)

Add target to a selector. Color Masking Button is a subclass of UIButton.

func updateColorOffset(targetFrame: CGRect)

Updates the mask's offset according to the target view's frame. Note that both the Color Masking Button and the target view must be in the same superview.

func change(foregroundColor: UIColor?, andBackgroundColor backgroundColor: UIColor?)

Change the color of either the foreground or the background.

func resetColorMask()

Force a reset the color mask.

func setMaskWithPath(path: CGPath)

Change the color mask while preseving color and offset.

Example

To run the example project, clone the repo, and run pod install from the Example directory first.

Requirements

  • Swift 2.0+
  • iOS 8.0+

Installation

ColorMaskingButton is available through CocoaPods. To install it, simply add the following line to your Podfile:

use_frameworks!
pod "ColorMaskingButton"

Author

Lawrence Tran

License

See the LICENSE file for more info.

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