条形上方的标签不显示水平条 ios-charts

Question

我正在我的项目中为水平条形图实施 ios-charts。我需要各个条形的值出现在条形上方（因为图表是水平的，标签应该出现在条形的右侧）。但是，我无法使其工作。代码如下：

func setupHorizontalChartView() {

        self.chartView.chartDescription?.enabled = false
        chartView.dragEnabled = false
        chartView.setScaleEnabled(true)
        chartView.pinchZoomEnabled = false

        let chartXAxis = chartView.xAxis
        chartXAxis.labelPosition = .bottom

        let chartLeftAxis = chartView.leftAxis
        chartLeftAxis.labelFont = NSUIFont(name: "Helvetica", size: 12)!
        chartLeftAxis.labelTextColor = UIColor.darkGray

        chartView.rightAxis.enabled = false

        chartView.drawValueAboveBarEnabled = true

        let formatter = BarChartFormatter()
        formatter.setValues(values: self.months)

        chartView.xAxis.valueFormatter = formatter
        chartView.xAxis.setLabelCount(self.months.count - 1, force: false)

        chartView.xAxis.drawGridLinesEnabled = false
        chartView.leftAxis.drawGridLinesEnabled = false

        chartView.xAxis.drawAxisLineEnabled = false
        chartView.leftAxis.drawAxisLineEnabled = false

        chartView.leftAxis.drawLabelsEnabled = false
    }

    func setChart(dataPoints: [String], values: [Double]) {

        var dataEntries: [BarChartDataEntry] = []

        for i in 0..<dataPoints.count {
            let dataEntry = BarChartDataEntry(x: Double(i), y: values[i])
            dataEntries.append(dataEntry)
        }

        let chartDataSet = BarChartDataSet(values: dataEntries, label: "Units Sold")

        chartDataSet.drawValuesEnabled = true
        let chartData = BarChartData(dataSet: chartDataSet)
        chartData.setDrawValues(true)

        chartView.data = chartData
    }

drawValueAboveBarEnabled已将图表视图设置为 true。当我对 BarChartView 使用相同的代码而不是 Horizo​​ntalBarChartView 时，条形的值显示在条形上方。但是，它不适用于水平条形图视图。

Answer 1

设置 chartView.leftAxis.axisMinimum = 0 帮助了我。我在GitHub 上为此展开了讨论