[clean]code.

AnimatablePlayButton/AnimatablePlayButton.swift

@@ -2,13 +2,12 @@
 //  AnimatablePlayButton.swift
 //  AnimatablePlayButton
 //
-//  Created by 鈴木 啓司 on 2015/12/01.
-//  Copyright © 2015年 suzuki_keishi. All rights reserved.
+//  Created by suzuki keishi on 2015/12/01.
+//  Copyright © 2015 suzuki_keishi. All rights reserved.
 //
 
 import UIKit
 
-@IBDesignable
 public class AnimatablePlayButton: UIButton {
 
 	public var color: UIColor! = .whiteColor() {
@@ -45,21 +44,36 @@ public class AnimatablePlayButton: UIButton {
 
     public override func awakeFromNib() {
         super.awakeFromNib()
+        setup()
         createLayers(frame)
-		clipsToBounds = true
     }
 
 	public required init?(coder aDecoder: NSCoder) {
 		super.init(coder: aDecoder)
+        setup()
 		createLayers(frame)
-		clipsToBounds = true
 	}
 
 	override public required init(frame: CGRect) {
 		super.init(frame: frame)
+        setup()
 		createLayers(frame)
-		clipsToBounds = true
 	}
+
+    convenience public init(origin: CGPoint, lengthOfSize: CGFloat){
+        self.init(frame: CGRectMake(origin.x, origin.y, lengthOfSize, lengthOfSize))
+    }
+
+    convenience public init(lengthOfSize: CGFloat){
+        self.init(frame: CGRectMake(0, 0, lengthOfSize, lengthOfSize))
+    }
+
+    // MARK: - private
+    private func setup(){
+		clipsToBounds = true
+        bgColor = .blackColor()
+        color = .whiteColor()
+    }
 
 	private func createLayers(frame: CGRect) {
 
@@ -202,7 +216,8 @@ public class AnimatablePlayButton: UIButton {
 		animation.removedOnCompletion = false
 		animation.fillMode = kCAFillModeForwards
 	}
-
+
+    // MARK: - public
 	public func select() {
 		selected = true
 

AnimatablePlayButtonExample/AnimatablePlayButtonExample/ViewController.swift

@@ -16,9 +16,9 @@ class ViewController: UIViewController {
 
         view.backgroundColor = .blackColor()
 
-        let button = AnimatablePlayButton(frame: CGRectMake(0, 0, 120, 120))
+        let button = AnimatablePlayButton(lengthOfSize: 120)
         button.center = CGPointMake(CGRectGetMidX(view.frame), CGRectGetMidY(view.frame))
-        button.bgColor =  .blackColor()
+        button.bgColor = .blackColor()
         button.color = .whiteColor()
         button.addTarget(self, action: Selector("tapped:"), forControlEvents: UIControlEvents.TouchUpInside)
 

README.md

@@ -1,31 +1,41 @@
 # AnimatablePlayButton
 
-Animated Button written in Swift2.0, using CALayer.
+Animated Button written in Swift2.0, using CALayer, CAKeyframeAnimation.
 
 ![sample](Screenshots/example01.gif)
 
 ## features
-- Only using CAShapeLayer, no image.
+- Only using CAShapeLayer, CAKeyframeAnimation. not from image object.
 
 ## Requirements
 - iOS 8.0+
 - Swift 2.0+
 - ARC
 
-## Installation
-#### Carthage
-TODO
+##Installation
 
-#### CocoaPods
-TODO
+####CocoaPods
+available on CocoaPods. Just add the following to your project Podfile:
+```
+pod 'AnimatablePlayButton'
+use_frameworks!
+```
+
+####Carthage
+To integrate into your Xcode project using Carthage, specify it in your Cartfile:
+
+```ogdl
+github "suzuki-0000/AnimatablePlayButton"
+```
 
 ## How to use
-See the code snippet below for an example of how to implement, or example project would be easy to understand.
+See the code snippet below for an example of how to implement.
+example project would be easy to understand.
 
 #### 1. Create a button, specify backgroundColor of Button(bgColor), and button color(color).
 ```swift
 let button = AnimatablePlayButton(frame: CGRectMake(0, 0, 44, 44))
-button.bgColor = UIColor(red: 38.0 / 255, green: 151.0 / 255, blue: 68.0 / 255, alpha: 1)
+button.bgColor = .blackColor()
 button.color = .whiteColor()
 self.view.addSubview(button)
 ```
@@ -46,3 +56,4 @@ func tapped(sender: AnimatablePlayButton) {
 
 ## License
 available under the MIT license. See the LICENSE file for more info.
+