how to draw CombinedChart in ios-chart - ios-charts

Question

I am using this lib for drawChart. Link: https://github.com/danielgindi/Charts
THis is my code. When i draw only CandleChart, it is OK.
But when I try to draw CombinedChart. I receiver this result.
This is my result
#IBOutlet weak var chart: CombinedChartView!
var date1 = [String]()
var open = [Double]()
var high = [Double]()
var low = [Double]()
var close = [Double]()
var volume = [Double]()
var adj_close = [Double]()
let gradientLayer = CAGradientLayer()
override func viewDidLoad() {
super.viewDidLoad()
loadVcs()
chart.delegate = self
chart.descriptionText = ""
chart.noDataTextDescription = ""
chart.drawGridBackgroundEnabled = false
chart.maxVisibleValueCount = 0
chart.pinchZoomEnabled = false
let xAxis = chart.xAxis
xAxis.labelPosition = ChartXAxis.XAxisLabelPosition.Bottom
xAxis.spaceBetweenLabels = 15
xAxis.drawLabelsEnabled = true
let leftAxis = chart.leftAxis
leftAxis.labelCount = 7
leftAxis.drawLabelsEnabled = false
leftAxis.drawAxisLineEnabled = false
let rightAxis = chart.rightAxis
rightAxis.drawGridLinesEnabled = true
rightAxis.enabled = true
setData()
}
override func viewWillAppear(animated: Bool) {
gradientLayer.frame = self.view.bounds
let color1 = UIColor.yellowColor().CGColor as CGColorRef
let color2 = UIColor(red: 1.0, green: 0, blue: 0, alpha: 1.0).CGColor as CGColorRef
let color3 = UIColor.clearColor().CGColor as CGColorRef
let color4 = UIColor(white: 0.0, alpha: 0.7).CGColor as CGColorRef
gradientLayer.colors = [color1, color2, color3, color4]
gradientLayer.locations = [0.0, 0.0, 1.0, 1.0]
// self.chart.layer.addSublayer(gradientLayer)
}
func loadVcs()
{
var csv :CSV?
do {
let path = NSBundle.mainBundle().pathForResource("FB", ofType: "csv")
csv = try CSV(name: path!)
if let data = csv {
for dict in data.rows
{
date1.insert(dict["Date"]!, atIndex: 0)
open.insert(Double(dict["Open"]!)!, atIndex: 0)
high.insert(Double(dict["High"]!)!, atIndex: 0)
low.insert(Double(dict["Low"]!)!, atIndex: 0)
close.insert(Double(dict["Close"]!)!, atIndex: 0)
volume.insert(Double(dict["Volume"]!)!, atIndex: 0)
adj_close.insert(Double(dict["Adj Close"]!)!, atIndex: 0)
}
}
} catch let error {
NSLog("\(error)")
}
}
func setData()
{
let data : CombinedChartData = CombinedChartData(xVals: date1)
data.candleData = generateCandleChartData(date1)
data.lineData = generateLineChartData(date1)
chart.data = data
}
func generateLineChartData(xVals : [String]) -> LineChartData
{
var d = LineChartData(xVals: xVals)
var lineVals = [ChartDataEntry]()
for i in 0 ..< date1.count
{
lineVals.append(ChartDataEntry(value: high[i], xIndex: i))
}
let lineChartDataSet : LineChartDataSet = LineChartDataSet(yVals: lineVals, label: "Line Data Set")
lineChartDataSet.setColor(UIColor.greenColor())
lineChartDataSet.lineWidth = 2.5
lineChartDataSet.drawCubicEnabled = true
lineChartDataSet.drawValuesEnabled = true
d.addDataSet(lineChartDataSet)
return d
}
func generateCandleChartData(xVals : [String]) -> CandleChartData
{
var d = CandleChartData(xVals: xVals)
var yVals = [ChartDataEntry]()
for i in 0 ..< date1.count
{
yVals.append(CandleChartDataEntry(xIndex: i, shadowH: high[i], shadowL: low[i], open: open[i] , close: close[i] ))
}
let set1 = CandleChartDataSet(yVals: yVals, label: "Data")
set1.axisDependency = ChartYAxis.AxisDependency.Left
set1.setColor(UIColor(white: (80/255), alpha: 1.0))
set1.shadowColor = UIColor.darkGrayColor()
set1.shadowWidth = 1
set1.decreasingColor = UIColor.redColor()
set1.decreasingFilled = true
set1.increasingColor = UIColor(red: 122/255, green: 242/255, blue: 84/255, alpha: 1)
set1.increasingFilled = true
set1.neutralColor = UIColor.blueColor()
d.addDataSet(set1)
return d
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func chartValueSelected(chartView: ChartViewBase, entry: ChartDataEntry, dataSetIndex: Int, highlight: ChartHighlight) {
NSLog("chartValueSelected")
}
func chartValueNothingSelected(chartView: ChartViewBase) {
NSLog("chartValueNoSelected")
}
Please help me :)

Answer 1

Please take a look at the ChartsDemo which is part of the library, there is combined chart for your reference.