Draw Horizontal Bar chart Using Swift (IOS)

We will use UIBezierPath with CAShapeLayer

First of all you need to make a UIVIEWCONTROLL in your app
Next go to viewdidload function and simple

simple call the method to make a bar

func drawLine(startpoint start:CGPoint, endpint end:CGPoint, linecolor color: CGColor , linewidth widthline:CGFloat){

    

        

        var path = UIBezierPath()

        path.moveToPoint(start)

        path.addLineToPoint(end)

        

        var shapeLayer = CAShapeLayer()

        shapeLayer.path = path.CGPath

        shapeLayer.strokeColor = color

        shapeLayer.lineWidth = widthline

        

        view.layer.addSublayer(shapeLayer)

        

 }

How to call

let start = CGPoint(x:20,y:100)

let end = CGPoint(x:200,y:100)

 //red part of line

 drawLine(startpoint: start, endpint: end,linecolor: UIColor.redColor().CGColor,linewidth:11.0)

This will simple make a single ..



Comple code to draw Graph(horizontal bar chart)

//

//  HorizontalBarChart.swift

//  Graphs

//

//  Created by tahir fazal hussain on 01/12/2014.

//  Copyright (c) 2014 tahir fazal hussain. All rights reserved.

//

import UIKit

class HorizontalBarChart: UIViewController {

    

    var frameWidth = 0

    var onePart = 0.0

    

    

    override func viewDidLoad() {

        super.viewDidLoad()

        frameWidth = (Int(self.view.frame.width) - 40)

        onePart = Double(frameWidth) / Double(100)

        NSLog("frame Width %i  One Part %d", frameWidth,onePart)

        

        self.view.backgroundColor = UIColor.whiteColor()

        

        drawlines(lineNumber:1, percent:30.0, linename:"Bar1")

        drawlines(lineNumber:2, percent:85, linename:"Bar2")

        drawlines(lineNumber:3, percent:49.0, linename:"Bar3")

        // Do any additional setup after loading the view.

    }

    

    

    override func didReceiveMemoryWarning() {

        super.didReceiveMemoryWarning()

        // Dispose of any resources that can be recreated.

    }

    

    func drawlines (lineNumber num:Int , percent val:Double,linename name:String){

        

        let startpoint=50

        let distance=80

        

        let start = CGPoint(x:20,y:Int(num*distance)+startpoint)

        let end = CGPoint(x:Int(val*onePart)+20,y:Int(num*distance)+startpoint)

        

        //first label settings

        var lbl = UILabel()

        lbl.frame = CGRectMake(start.x, start.y - 25, 55, 15)

        lbl.font = lbl.font.fontWithSize(15)

        lbl.text = name

        view.addSubview(lbl)

        

        //red part of line

        drawLine(startpoint: start, endpint: end,linecolor: UIColor.redColor().CGColor,linewidth:11.0)

        

        //gray part of line

        let nextpt = Int(Double(100 - val)*onePart) + Int(val*onePart)

        let nstart = CGPoint(x:Int(val*onePart)+20,y:Int(num*distance)+startpoint)

        let nend = CGPoint(x:nextpt,y:Int(num*distance)+startpoint)

        drawLine(startpoint: nstart, endpint: nend, linecolor: UIColor.grayColor().CGColor,linewidth:11.0)

        

        

        //black vertical line

        let vline = CGPoint(x:end.x,y:end.y+5)

        let height = CGPoint(x:end.x,y:end.y-30)

        drawLine(startpoint: vline, endpint: height, linecolor: UIColor.blackColor().CGColor,linewidth:2.0)

        

        

        

        

        //value label

        var lbl2 = UILabel()

        //check distance

        if ((vline.x + 100 ) > self.view.frame.width ){

                lbl2.frame = CGRectMake(vline.x-50, start.y - 25, 50, 15)

        }

        else{

            lbl2.frame = CGRectMake(vline.x+5, start.y - 25, 50, 15)

        }

        lbl2.font = lbl2.font.fontWithSize(15)

        lbl2.text = "value"

        view.addSubview(lbl2)

        

        

        

        //description value

        var lbl3 = UILabel()

        lbl3.frame = CGRectMake(start.x+40, start.y + 15, 150, 15)

        lbl3.font = lbl3.font.fontWithSize(15)

        lbl3.text = "Some Description"

        view.addSubview(lbl3)

        

    

    }

    

    func drawLine(startpoint start:CGPoint, endpint end:CGPoint, linecolor color: CGColor , linewidth widthline:CGFloat){

    

        

        var path = UIBezierPath()

        path.moveToPoint(start)

        path.addLineToPoint(end)

        

        var shapeLayer = CAShapeLayer()

        shapeLayer.path = path.CGPath

        shapeLayer.strokeColor = color

        shapeLayer.lineWidth = widthline

        

        view.layer.addSublayer(shapeLayer)

        

        

    }

    

    /*

    // MARK: - Navigation

    // In a storyboard-based application, you will often want to do a little preparation before navigation

    override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {

        // Get the new view controller using segue.destinationViewController.

        // Pass the selected object to the new view controller.

    }

    */

}