Swift danielgindi/图表饼图图例标签

在为饼图绘制图例时，我不会显示所有标签

这是代码

func AllocationsChart( pieChart: PieChartView ) {

    let entry1 = PieChartDataEntry(value: 65, label: "Stock")
    let entry2 = PieChartDataEntry(value: 35, label: "Bond")

    let dataSet = PieChartDataSet(entries: [entry1, entry2 ] , label: "Allocation" )
    let data = PieChartData(dataSet: dataSet)

    pieChart.data = data

    let labels = ["Stock","Bonds"]   // would like to set the label here

    let colors = [ Color.stock,  Color.bond ]
    dataSet.colors =  colors
    dataSet.sliceSpace = 2

    pieChart.drawHoleEnabled = true
    pieChart.transparentCircleColor = .white
    pieChart.holeRadiusPercent = 0.6667

    let l = pieChart.legend
    l.enabled = true
    l.orientation = .vertical
    l.form = .circle

}

下面是结果

是否可以像处理其他图表视图那样设置标签，如下所示：

 xAxis.valueFormatter = IndexAxisValueFormatter(values: labels)

首先，为什么债券条目没有显示出来

此外，图例标签的颜色与条目不匹配

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非常感谢。

这是在末尾添加这行代码的问题：

pieChart.notifyDataSetChanged()

仍然不知道如何设置PieChartDataEntry标签以外的标签

祝你好运