iOS图表xAxis标签被截断

Question

我正在使用iOS图表显示水平条形图。左侧的x轴标签已被切除。只有当我双击图表时，才会出现正确的大小调整并且标签不再被剪切。

这是我正在使用的代码

    func setChart(_ dataPoints: [(String,Int)], chart: HorizontalBarChartView) {

    chart.noDataText = "No data available."

    var dataEntries: [BarChartDataEntry] = []

    let maxNumberEntries = dataPoints.count

    var xAxisLabel: [String] = []

    var counter:Int = maxNumberEntries-1
    for _ in 0..<maxNumberEntries {
        let dataEntry = BarChartDataEntry(x: Double(counter), yValues: [Double(dataPoints[counter].1)], label: dataPoints[counter].0)
        dataEntries.append(dataEntry)
        xAxisLabel.append(dataPoints[counter].0)
        counter -= 1
    }

    xAxisLabel = xAxisLabel.reversed()

    let chartDataSet = BarChartDataSet(values: dataEntries, label: "")
    let chartData = BarChartData(dataSet: chartDataSet)
    chart.data = chartData
    chart.animate(xAxisDuration: 2.0, yAxisDuration: 2.0)

    // disable zoom of chart
    chart.pinchZoomEnabled = false
    chart.scaleXEnabled = false
    chart.scaleYEnabled = false

    chart.chartDescription?.text = ""
    chart.legend.enabled = false

    // disable selection of bars
    chartDataSet.highlightEnabled = false
    chartDataSet.valueFont = NSUIFont.systemFont(ofSize: 10)

    let numberFormatter = ValueFormatter()
    chartData.setValueFormatter(numberFormatter)

    // specify the width each bar should have
    let barWidth = 0.8
    chartData.barWidth = barWidth

    let formato:BarChartFormatter = BarChartFormatter()
    formato.strings = xAxisLabel
    let xaxis:XAxis = XAxis()

    _ = formato.stringForValue(Double(1), axis: xaxis)
    xaxis.valueFormatter = formato
    chart.xAxis.valueFormatter = xaxis.valueFormatter

    let xAxis = chart.xAxis
    xAxis.labelPosition = XAxis.LabelPosition.bottom // label at bottom
    xAxis.drawGridLinesEnabled = false
    xAxis.granularity = 1.0
    xAxis.labelCount = maxNumberEntries
    xAxis.labelRotationAngle = 0

    // Don't show other axis
    let leftAxis = chart.leftAxis
    leftAxis.enabled = false
    let rightAxis = chart.rightAxis
    rightAxis.enabled = false

}

任何想法如何解决？

屏幕截图：

切除的xAxis标签

双击后，标签不再被切断

Answer 1

如果即使在notifyDataSetChanged之后，您的值也被切断，请尝试像这样抵消它：

mChart.extraTopOffset = 20

Answer 2

如果有人一直在挣扎并且回答没有帮助，一旦您使用新数据设置图表，请不要忘记在图表上调用notifyDataSetChanged，否则标签将被剪切。这就是我的情况。

Answer 3

HorizontalBarChart 标签切割问题解决了您只需将此代码放在您的图表设置中：

chart.extraRightOffset = 30

Answer 4

我通过致电解决了这个问题

chart.fitScreen()

对于所有条形图，一旦所有数据都通过。