iOS图表增加了空间并添加了X轴标签

Question

I have been using iOS Charts to create a bar graph. This is what I have so far:

.

I am having trouble achieving three things:

• Changing the x-axis labels from (0-7) to Monday, Tuesday, Wednesday, etc.
• Getting rid of the labels above the bars (1.0, 10.0, 20, etc.)
• How to get rid of the space between the bars and the axis at the very bottom

Help with any one of these would be greatly appreciated

Answer 1

Please check below:

Changing the x-axis labels from (0-7) to Monday, Tuesday, Wednesday, etc. :

var weekdays: [String] = ["Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"]
barChartView.xAxis.valueFormatter = IndexAxisValueFormatter(values: weekdays)

Getting rid of the labels above the bars (1.0, 10.0, 20, etc.) :

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

For lining bars to the xAxis :

barChartView.rightAxis.axisMinimum = 0.0
barChartView.leftAxis.axisMinimum = 0.0

Answer 2

Please share your code.

For problem number 1:

 var xvalues: [String] = [String]()

 for i in 0 ..< datapoints.count {               
    xvalues.append("custom text here")
 }

 barchartview.xAxis.valueFormatter = IndexAxisValueFormatter(values: xvalues)

For problem number 2:

    let dataSet = BarChartDataSet()
    dataSet.values = barChartDataEntries

    // to hide values above the bars
    dataSet.drawValuesEnabled = false        

    let data = BarChartData(dataSet: dataSet)
    barchartview.data = data

Answer 3

lineChartView.leftAxis.axisMinimum = 0
lineChartView.xAxis.valueFormatter = IndexAxisValueFormatter(values: weekdays)