iOS Swift Charts Display X-Axis Error

Question

I am using the Charts framework found here.

My graphs look like this:

My left graph has a bunch of values under my first bar and my second graph is missing a value under my second bar. My function to set up the graph is as follows:

func setChart(chartview: BarChartView, xarray: [String], yarray: [Double]){

        var dataEntries: [BarChartDataEntry] = []


        for i in 0..<xarray.count {

            let dataEntry = BarChartDataEntry(x: Double(i), y: Double(yarray[i]))

            dataEntries.append(dataEntry)
        }

        let chartDataSet = BarChartDataSet(values: dataEntries, label: "")

        let chartData = BarChartData(dataSet: chartDataSet)

        chartview.xAxis.valueFormatter = IndexAxisValueFormatter(values:xarray)

        chartview.xAxis.labelPosition = .bottom

        chartview.chartDescription?.enabled = false

        chartview.rightAxis.enabled = false

        chartview.legend.enabled = false

        chartview.data = chartData

    }

I use the same functions to create other graphs and they show up fine but for some reason sometimes they show like this.

Update:

Below are both arrays during runtime for each graph:

Graph 1:

["iOS 10", "iOS 9"]
[67.0, 19.0]

Graph 2:

["2.1.0.6", "2.1.0.5", "2.0.32", "2.0.30", "2.0.23", "1.3.2.8"]
[67.0, 7.0, 4.0, 5.0, 2.0, 1.0]

Answer 1

Please try this :

barChartView.xAxis.granularityEnabled = true