Bar Chart Not Showing Colours Correctly

[VSmallbon]

I'm looking to change the colours of a Bar Chart but every time I try and set the colours in BarChartDataSet the correct colours don't appear. I've read through the documentation but I can't work out what is going wrong.

       let yValuesDataSet = BarChartDataSet(values: yValues, label: "(\(measurementMetadata[0].unit ?? ""))")
        styleAxis(yValuesDataSet, color: lineColor, labelColor: textColor, innerColor: innerColor, filled:true)
    
        if showDetail {
            yValuesDataSet.stackLabels = [String]()
            legendEntries = [LegendEntry]()
            for (i,singleMeasurementMetadata) in measurementMetadata.enumerated()
            {
                yValuesDataSet.stackLabels.append(singleMeasurementMetadata.displayName!)
                legendEntries.append(LegendEntry(label: singleMeasurementMetadata.displayName!, form: .square, formSize: 5, formLineWidth: 1, formLineDashPhase: 0, formLineDashLengths: nil, formColor: UserInterfaceManager.Colours.darkGreenyBlue))
            }
        } else {
            yValuesDataSet.label = ""//highLevelLabel
            legendEntries = [LegendEntry]()
            legendEntries.append(LegendEntry(label: highLevelLabel, form: .square, formSize: 5, formLineWidth: 1, formLineDashPhase: 0, formLineDashLengths: nil, formColor: lineColor))
            
            yValuesDataSet.stackLabels = [String]()
            yValuesDataSet.stackLabels.append(highLevelLabel)
        }
        
        yValuesDataSet.colors = ChartColorTemplates.pastel()
        
        let chartData = BarChartData(dataSet: yValuesDataSet)
        chartData.barWidth = 0.5
        
        chartView.data = chartData
        chartView.notifyDataSetChanged()

If instead of using ChartColorTemplates.pastel() as a template I use a custom UIColor array, that also produces funny results. An array of 4 colours will produce correct results but an array of 5 colours (or more) will produce funny results (either with the colours appearing out of order or all bars showing the same colour). However oddly enough, the colours in the legend will be in the correct orde.r

    var barColours = [UIColor]()
    barColours.append(UserInterfaceManager.graphColours.sleepBlue)
    barColours.append(UserInterfaceManager.Colours.darkOrange)
    barColours.append(UserInterfaceManager.graphColours.sleepRed)
    barColours.append(UserInterfaceManager.graphColours.sleepGreen)
    barColours.append(UserInterfaceManager.Colours.darkestGreenyBlue)
    barColours.append(UserInterfaceManager.Colours.lightOrange)
   
    yValuesDataSet.colors = barColours
    let chartData = BarChartData(dataSet: yValuesDataSet)
    chartData.barWidth = 0.5

    chartView.data = chartData
    chartView.notifyDataSetChanged()

Using Charts 3.2.1 with Swift 4 and XCode Version 10.1

[liuxuan30]

please check ChartsDemo first. I don't see issues with multiple colors.