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首页 > 解决方案 > 如何设置 BarChartDataEntry 标签（字符串不是双精度）而不是 xaxis 标签

ios - 如何设置 BarChartDataEntry 标签（字符串不是双精度）而不是 xaxis 标签

问题描述

大家好，我需要帮助，我想格式化BarChartDataEntry标签，如图所示。 在此处输入图像描述

我的代码

    var dataEntries: [BarChartDataEntry] = []
    var dataEntriesBottom: [BarChartDataEntry] = []
     for i in 0..<goals.count {
        let dataEntry = BarChartDataEntry(x: Double(i), y: Double(goals[i]))
       dataEntries.append(dataEntry)
     }
    let chartDataSet = BarChartDataSet(entries: dataEntries, label: "")
    chartDataSet.colors = [.systemGreen]
    let chartData = BarChartData(dataSet: chartDataSet)
    chartData.barWidth = 0.4
    chartView.xAxis.drawAxisLineEnabled = false
    chartView.leftAxis.drawAxisLineEnabled = false
    chartView.xAxis.drawGridLinesEnabled = false
    chartView.rightAxis.drawAxisLineEnabled = false
    chartView.leftAxis.drawLabelsEnabled = false
    chartView.rightAxis.drawLabelsEnabled = false
    chartView.leftAxis.drawGridLinesEnabled = false
    chartView.rightAxis.drawGridLinesEnabled = false
    chartView.xAxis.enabled = false
    chartView.xAxis.drawLabelsEnabled = false
    chartView.xAxis.granularity = 0
    self.chartView.animate(yAxisDuration: 1.0)
    self.chartView.legend.enabled = false
    chartView.data = chartData

标签： iosswiftios5

解决方案

尝试这样的事情：

let myFormatter = NumberFormatter()
myFormatter.numberStyle = .decimal
myFormatter.maximumFractionDigits = 0
chartData.setValueFormatter(DefaultValueFormatter(formatter: myFormatter))

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