gistfile1.swift

class ReadingsIndividualArticle: UIViewController, UIActionSheetDelegate, AVAudioPlayerDelegate {
    let progressView = ProgressView()
    
    override func viewDidLoad() {

        middleView.backgroundColor = UIColor.whiteColor()
        self.view.addSubview(middleView)
        middleView.addSubview(progressView)
        progressView.backgroundColor = UIColor.whiteColor()
        middleView.snp_makeConstraints { (make) -> Void in
            make.left.top.right.bottom.equalTo(self.view)
        }
        progressView.snp_makeConstraints { (make) -> Void in
            make.left.right.bottom.equalTo(middleView)
            make.centerX.equalTo(middleView)
            make.height.equalTo(34)
        }
      }
}

ProgressStyleKit.swift

//
//  ProgressStyleKit.swift
//  ProgressBar
//
//  Created by Fred on 14/Nov/15.
//  Copyright (c) 2015 Outloud. All rights reserved.
//
//  Generated by PaintCode (www.paintcodeapp.com)
//



import UIKit

public class ProgressStyleKit : NSObject {

    //// Drawing Methods

    public class func drawProgressBarCanvas(width: CGFloat) {
        //// General Declarations
        let context = UIGraphicsGetCurrentContext()

        //// Color Declarations
        let gradientColor = UIColor(red: 0.322, green: 0.322, blue: 0.322, alpha: 1.000)
        let gradientColor2 = UIColor(red: 0.416, green: 0.416, blue: 0.416, alpha: 1.000)
        let shadowColor = UIColor(red: 0.200, green: 0.200, blue: 0.200, alpha: 1.000)
        let innerShadowColor = UIColor(red: 0.671, green: 0.671, blue: 0.671, alpha: 1.000)
        let gradientColor3 = UIColor(red: 0.188, green: 0.188, blue: 0.188, alpha: 1.000)
        let gradientColor4 = UIColor(red: 0.247, green: 0.247, blue: 0.247, alpha: 1.000)
        let progressColor = UIColor(red: 0.000, green: 0.886, blue: 0.000, alpha: 1.000)

        //// Gradient Declarations
        let outerRectGradient = CGGradientCreateWithColors(CGColorSpaceCreateDeviceRGB(), [gradientColor.CGColor, gradientColor2.CGColor], [0, 1])!
        let trackGradient = CGGradientCreateWithColors(CGColorSpaceCreateDeviceRGB(), [gradientColor3.CGColor, gradientColor4.CGColor], [0, 1])!

        //// Shadow Declarations
        let darkShadow = NSShadow()
        darkShadow.shadowColor = shadowColor
        darkShadow.shadowOffset = CGSizeMake(0.1, 1.1)
        darkShadow.shadowBlurRadius = 1.5
        let innerShadow = NSShadow()
        innerShadow.shadowColor = innerShadowColor
        innerShadow.shadowOffset = CGSizeMake(0.1, 1.1)
        innerShadow.shadowBlurRadius = 0

        //// Frames
        let progressIndicatorFrame = CGRectMake(0, 0, width, 34)

        //// Subframes
        let progressActiveGroup: CGRect = CGRectMake(progressIndicatorFrame.minX + 12, progressIndicatorFrame.minY + 11, progressIndicatorFrame.width - 28, 10)
        let activeProgressFrame = CGRectMake(progressActiveGroup.minX + floor(progressActiveGroup.width * 0.00000 + 0.5), progressActiveGroup.minY, floor(progressActiveGroup.width * 1.00000 + 0.5) - floor(progressActiveGroup.width * 0.00000 + 0.5), 10)


        //// ProgressBarGroup
        //// Border Drawing
        let borderRect = CGRectMake(progressIndicatorFrame.minX, progressIndicatorFrame.minY, progressIndicatorFrame.width, 34)
        let borderPath = UIBezierPath(roundedRect: borderRect, cornerRadius: 4)
        CGContextSaveGState(context)
        CGContextSetShadowWithColor(context, darkShadow.shadowOffset, darkShadow.shadowBlurRadius, (darkShadow.shadowColor as! UIColor).CGColor)
        CGContextBeginTransparencyLayer(context, nil)
        borderPath.addClip()
        CGContextDrawLinearGradient(context, outerRectGradient,
            CGPointMake(borderRect.midX, borderRect.minY),
            CGPointMake(borderRect.midX, borderRect.maxY),
            CGGradientDrawingOptions())
        CGContextEndTransparencyLayer(context)

        ////// Border Inner Shadow
        CGContextSaveGState(context)
        CGContextClipToRect(context, borderPath.bounds)
        CGContextSetShadow(context, CGSizeMake(0, 0), 0)
        CGContextSetAlpha(context, CGColorGetAlpha((innerShadow.shadowColor as! UIColor).CGColor))
        CGContextBeginTransparencyLayer(context, nil)
        let borderOpaqueShadow = (innerShadow.shadowColor as! UIColor).colorWithAlphaComponent(1)
        CGContextSetShadowWithColor(context, innerShadow.shadowOffset, innerShadow.shadowBlurRadius, borderOpaqueShadow.CGColor)
        CGContextSetBlendMode(context, .SourceOut)
        CGContextBeginTransparencyLayer(context, nil)

        borderOpaqueShadow.setFill()
        borderPath.fill()

        CGContextEndTransparencyLayer(context)
        CGContextEndTransparencyLayer(context)
        CGContextRestoreGState(context)

        CGContextRestoreGState(context)



        //// ProgressTrack Drawing
        let progressTrackRect = CGRectMake(progressIndicatorFrame.minX + 10, progressIndicatorFrame.minY + 9, progressIndicatorFrame.width - 24, 14)
        let progressTrackPath = UIBezierPath(roundedRect: progressTrackRect, cornerRadius: 7)
        CGContextSaveGState(context)
        CGContextSetShadowWithColor(context, innerShadow.shadowOffset, innerShadow.shadowBlurRadius, (innerShadow.shadowColor as! UIColor).CGColor)
        CGContextBeginTransparencyLayer(context, nil)
        progressTrackPath.addClip()
        CGContextDrawLinearGradient(context, trackGradient,
            CGPointMake(progressTrackRect.midX, progressTrackRect.minY),
            CGPointMake(progressTrackRect.midX, progressTrackRect.maxY),
            CGGradientDrawingOptions())
        CGContextEndTransparencyLayer(context)

        ////// ProgressTrack Inner Shadow
        CGContextSaveGState(context)
        CGContextClipToRect(context, progressTrackPath.bounds)
        CGContextSetShadow(context, CGSizeMake(0, 0), 0)
        CGContextSetAlpha(context, CGColorGetAlpha((darkShadow.shadowColor as! UIColor).CGColor))
        CGContextBeginTransparencyLayer(context, nil)
        let progressTrackOpaqueShadow = (darkShadow.shadowColor as! UIColor).colorWithAlphaComponent(1)
        CGContextSetShadowWithColor(context, darkShadow.shadowOffset, darkShadow.shadowBlurRadius, progressTrackOpaqueShadow.CGColor)
        CGContextSetBlendMode(context, .SourceOut)
        CGContextBeginTransparencyLayer(context, nil)

        progressTrackOpaqueShadow.setFill()
        progressTrackPath.fill()

        CGContextEndTransparencyLayer(context)
        CGContextEndTransparencyLayer(context)
        CGContextRestoreGState(context)

        CGContextRestoreGState(context)



        //// ProgressActiveGroup
        //// ProgressBar Drawing
        let progressBarPath = UIBezierPath(roundedRect: CGRectMake(activeProgressFrame.minX, activeProgressFrame.minY + activeProgressFrame.height - 10, floor((activeProgressFrame.width) * 1.00000 + 0.5), 10), cornerRadius: 5)
        CGContextSaveGState(context)
        CGContextSetShadowWithColor(context, innerShadow.shadowOffset, innerShadow.shadowBlurRadius, (innerShadow.shadowColor as! UIColor).CGColor)
        progressColor.setFill()
        progressBarPath.fill()

        ////// ProgressBar Inner Shadow
        CGContextSaveGState(context)
        CGContextClipToRect(context, progressBarPath.bounds)
        CGContextSetShadow(context, CGSizeMake(0, 0), 0)
        CGContextSetAlpha(context, CGColorGetAlpha((darkShadow.shadowColor as! UIColor).CGColor))
        CGContextBeginTransparencyLayer(context, nil)
        let progressBarOpaqueShadow = (darkShadow.shadowColor as! UIColor).colorWithAlphaComponent(1)
        CGContextSetShadowWithColor(context, darkShadow.shadowOffset, darkShadow.shadowBlurRadius, progressBarOpaqueShadow.CGColor)
        CGContextSetBlendMode(context, .SourceOut)
        CGContextBeginTransparencyLayer(context, nil)

        progressBarOpaqueShadow.setFill()
        progressBarPath.fill()

        CGContextEndTransparencyLayer(context)
        CGContextEndTransparencyLayer(context)
        CGContextRestoreGState(context)

        CGContextRestoreGState(context)
    }

}

ProgressVIew.swift

import Foundation
import UIKit

class ProgressView: UIView {
    let rect = CGRectMake(2, 1, 318, 34)
    override func drawRect(rect: CGRect) {
        ProgressStyleKit.drawProgressBarCanvas(self.frame.width)
    }
}