Migration to Chart 3.0, Problem with Stack BarChartView

[amitvyawahare]

Thank for the beautiful library!

I was using Charts 2.3.0 version for my stack bar chart view. But after I moved to Swift 3 and Chart 3.0, then my code started breaking. After fixing the number of problems, I am having one issues.

Code I am using
` func setChart() {

    let entry1 = BarChartDataEntry(x: 1, yValues: [ 3, 0, 0, 0])
    let entry2 = BarChartDataEntry(x: 2, yValues: [ 0, 8, 0, 0])
    let entry3 = BarChartDataEntry(x: 3, yValues: [ 12, 0, 0, 4])
    let entry4 = BarChartDataEntry(x: 4, yValues: [ 0, 5, 0, 0])
    let entry5 = BarChartDataEntry(x: 5, yValues: [ 4, 6, 2, 8])
    
    let dataSet = BarChartDataSet(values: [ entry1, entry2, entry3, entry4, entry5], label: "")
    dataSet.colors = [ UIColor.yellow, UIColor.green, UIColor.blue, UIColor.darkGray]
    dataSet.valueColors = [ UIColor.white]
    
    let chartData = BarChartData(dataSet: dataSet)
    barChartView.data = chartData
}`

Output:

` func setChart() {

    let entry1 = BarChartDataEntry(x: 1.1, yValues: [ 3, 0, 0, 0])
    let entry2 = BarChartDataEntry(x: 1.2, yValues: [ 0, 8, 0, 0])
    let entry3 = BarChartDataEntry(x: 1.3, yValues: [ 12, 0, 0, 4])
    let entry4 = BarChartDataEntry(x: 1.4, yValues: [ 0, 5, 0, 0])
    let entry5 = BarChartDataEntry(x: 1.5, yValues: [ 4, 6, 2, 8])
    
    let dataSet = BarChartDataSet(values: [ entry1, entry2, entry3, entry4, entry5], label: "")
    dataSet.colors = [ UIColor.yellow, UIColor.green, UIColor.blue, UIColor.darkGray]
    dataSet.valueColors = [ UIColor.white]
    
    let chartData = BarChartData(dataSet: dataSet)
    barChartView.data = chartData
}`

My issues is:

1. When I change x value in BarChartDataEntry from 1,2,3,4,5 to 1.1,1.2,1.3,1.4,1.5, stack bar chart giving me very wired behavior. Screen shot is attached. So my question is how do I make use BarChartDataEntry to use Double x value. It used to work fine in 2.3 version because XValues are string (Used to use: (xVals: [ "1.1", "1.2", "1.3", "1.4" ], dataSet: dataSet)).

In chart 3.0, we have a init with label for stacked bar entries but that label doesn't show anywhere.
I am ok with if following code works and label("1.1") shows on xAxis
let entry1 = BarChartDataEntry(x: 1, yValues: [ 3, 0, 0, 0], label: "1.1")

[liuxuan30]

you need to read #1474 first. x axis is redesigned. And check ChartsDemo.