IOS图表Y轴没有正确对齐 - Charts Cocoa Pod

Question

我目前正在使用IOS图表，该库的链接位于：Link

目前，图表左轴标签不代表它们应该是什么。 该图表目前已放大以允许平移。

这是显示左轴的图片：

但实际数据集是：

leftAxis.granularity = 1

左轴实际上是0.8的增量。

如何更改此内容？

以下是我的需求：

更新

设置

后

`class ReviewDetailVC: UIViewController, ChartViewDelegate { @IBOutlet weak var chartView: LineChartView! var yValues = [Double]() var yLabels = [String]() var months = [String]() var xValues = [String]() let red = UIColor(hue: 0.9639, saturation: 0.62, brightness: 0.93, alpha: 1.0) let black = UIColor(red:0.29, green:0.29, blue:0.29, alpha:1.0) let grey = UIColor(red:0.81, green:0.81, blue:0.81, alpha:1.0) let avenirDemi = UIFont(name: "AvenirNext-DemiBold", size: 14) override func viewDidLoad() { super.viewDidLoad() chartView.delegate = self // Chart Ui Settings chartView.leftAxis.axisMinimum = 0 chartView.leftAxis.axisMaximum = 5 chartView.leftAxis.labelCount = 7 chartView.chartDescription?.text = "" chartView.xAxis.labelPosition = .bottom chartView.legend.enabled = false chartView.scaleYEnabled = false chartView.scaleXEnabled = true chartView.doubleTapToZoomEnabled = false chartView.highlighter = nil chartView.rightAxis.enabled = false chartView.xAxis.drawGridLinesEnabled = false chartView.dragEnabled = true chartView.scaleXEnabled = false chartView.scaleYEnabled = false chartView.zoom(scaleX: 4, scaleY: 1, x: 0, y: CGFloat(AxisDependency.left.rawValue)) chartView.xAxis.labelFont = avenirDemi! chartView.xAxis.labelTextColor = grey chartView.leftAxis.labelFont = avenirDemi! chartView.leftAxis.labelTextColor = black chartView.xAxis.axisLineWidth = 0 chartView.leftAxis.axisLineWidth = 0 chartView.leftAxis.granularity = 1 chartView.xAxis.avoidFirstLastClippingEnabled = true chartView.xAxis.granularityEnabled = true chartView.xAxis.granularity = 1 chartView.xAxis.axisMinimum = 0.0 chartView.leftAxis.gridColor = grey chartView.leftAxis.gridLineDashLengths = [4] chartView.leftAxis.gridLineWidth = 1.5 chartView.xAxis.centerAxisLabelsEnabled = true chartView.noDataText = "This person has not reviewed your business." xValues = ["MAR 10"," MAR 15", "APR 7", "APR 8", "APR 15", "APR 30", "MAY 14", "MAY 21","MAY 31", "MAY 31"] yLabels = ["0","1","2","3","4","5"] yValues = [0,2,4,5,3,4,2,4,5,4,4] let Xformatter = CustomLabelsAxisValueFormatter() Xformatter.labels = xValues let Yformatter = CustomYAxisLabelValueFormatter() Yformatter.Ylabels = yLabels chartView.xAxis.valueFormatter = Xformatter chartView.leftAxis.valueFormatter = Yformatter chartView.animate(yAxisDuration: 1) setChart(dataPoints: xValues, values: yValues) } func setChart(dataPoints: [String], values: [Double]) { chartView.noDataText = "You need to provide data for the chart." var dataEntries: [ChartDataEntry] = [] for i in 0..<dataPoints.count { let dataEntry = ChartDataEntry(x: Double(i)+0.5, y: values[i]) dataEntries.append(dataEntry) } let chartDataSet = LineChartDataSet(values: dataEntries, label: "") let chartData = LineChartData(dataSets: [chartDataSet]) chartDataSet.drawValuesEnabled = false chartDataSet.colors = [red] chartDataSet.drawCirclesEnabled = true chartDataSet.circleRadius = 16 chartDataSet.circleColors = [red] chartDataSet.circleHoleRadius = 12 chartDataSet.circleHoleColor = UIColor.white chartDataSet.lineWidth = 4 chartView.data = chartData } @IBAction func backBtnPressed(_ sender: Any) { self.presentingViewController?.dismiss(animated: true, completion: nil) } } class CustomLabelsAxisValueFormatter : NSObject, IAxisValueFormatter { var labels: [String] = [] func stringForValue(_ value: Double, axis: AxisBase?) -> String { let count = self.labels.count guard let axis = axis, count > 0 else { return "" } let factor = axis.axisMaximum / Double(count) let index = Int((value / factor).rounded()) if index >= 0 && index < count { return self.labels[index] } return "" } } class CustomYAxisLabelValueFormatter : NSObject, IAxisValueFormatter { var Ylabels: [String] = [] func stringForValue(_ value: Double, axis: AxisBase?) -> String { let count = self.Ylabels.count guard let axis = axis, count > 0 else { return "" } let factor = axis.axisMaximum / Double(count) let index = Int((value / factor).rounded()) if index >= 0 && index < count { return self.Ylabels[index] } return "" } }`

这些情节应该是他们应该去的地方。但是，[0,1,2,3,4,5] 3被跳过并且没有显示在左轴上。会导致这种情况的原因是什么？

我的代码：

JSON

Answer 1

当我运行你的代码时，这就是我得到的：

所以我无法重现你的问题，我唯一改变的就是取消注释这三行，因为我没有CustomYAxisLabelValueFormatter的代码。因此，如果您取消注释这些行，它应该可以工作。

    //let Yformatter = CustomYAxisLabelValueFormatter()
    //Yformatter.Ylabels = yLabels
    //chartView.leftAxis.valueFormatter = Yformatter