为什么x轴和柱子之间有空间呢？

[LuDamon]

设置的代码和效果如图：求大神指教~

[LuDamon]

    barChart.chartDescription?.enabled = false
    barChart.pinchZoomEnabled = false
    barChart.drawBarShadowEnabled = false
	barChart.drawValueAboveBarEnabled = true
    
    let xAxis = barChart.xAxis
    xAxis.labelPosition = .bottom
	xAxis.drawGridLinesEnabled = false
	xAxis.labelTextColor = __colorWithHex("#7B7C7D", 1)
	xAxis.axisLineColor = __colorWithHex("#E9E9E9", 1)
	xAxis.labelFont = UIFont.systemFont(ofSize: 10)
	xAxis.labelRotationAngle = -40;
	
	barChart.rightAxis.enabled = false
	
	let yAxis = barChart.leftAxis
	yAxis.drawAxisLineEnabled = false
	yAxis.drawGridLinesEnabled = false
	
	barChart.legend.enabled = false

[adao3056]

这个问题怎么解决的？

[LuDamon]

这个问题怎么解决的？

贴下你的代码

[adao3056]

// import Foundation import UIKit import RxSwift import RxCocoa import Charts class MonitorSeachDetailChartView: UIView { var chartModelData:MonitorSeachDetailModelData? lazy var chartView: CombinedChartView = { let chartView = CombinedChartView() chartView.drawBarShadowEnabled = false chartView.highlightFullBarEnabled = true chartView.drawOrder = [DrawOrder.bar.rawValue,DrawOrder.line.rawValue] chartView.highlightPerTapEnabled = true chartView.drawGridBackgroundEnabled = true chartView.gridBackgroundColor = .init(hex: "#FBFBFD") chartView.scaleYEnabled = false chartView.doubleTapToZoomEnabled = false chartView.noDataText = "" let l = chartView.legend l.enabled = true l.wordWrapEnabled = true l.horizontalAlignment = .left l.verticalAlignment = .top l.orientation = .horizontal l.drawInside = false l.form = .circle l.xEntrySpace = 10 l.xOffset = 0 l.formSize = 10 l.font = UIFont.systemFont(ofSize: 10) let leftAxis = chartView.leftAxis leftAxis.labelCount = 4 leftAxis.drawGridLinesEnabled = true leftAxis.gridColor = UIColor.lineColor leftAxis.gridLineWidth = 0.5 leftAxis.drawZeroLineEnabled = false leftAxis.valueFormatter = LargeValueFormatter() leftAxis.axisLineColor = .clear let rightAxis = chartView.rightAxis rightAxis.labelCount = 4 rightAxis.drawGridLinesEnabled = false rightAxis.gridColor = UIColor.lineColor rightAxis.gridLineWidth = 0.5 rightAxis.axisLineColor = .clear rightAxis.valueFormatter = LargeValueFormatter() rightAxis.drawLabelsEnabled = false let xAxis = chartView.xAxis xAxis.labelPosition = .bottom xAxis.granularity = 1 xAxis.centerAxisLabelsEnabled = true xAxis.drawGridLinesEnabled = false xAxis.granularityEnabled = true xAxis.granularity = 1.0 return chartView }() func setChartGranularity(granularity:Double,granularityEnabled:Bool) { chartView.xAxis.granularityEnabled = granularityEnabled chartView.xAxis.granularity = granularity } override init(frame: CGRect) { super.init(frame: frame) self.addSubview(chartView) chartView.snp.makeConstraints { make in make.top.equalToSuperview().offset(0) make.left.right.bottom.equalToSuperview() } } required init?(coder: NSCoder) { fatalError("init(coder:) has not been implemented") } func bind(to model:MonitorSeachDetailModelData) { self.chartModelData = model let data = CombinedChartData() var setArr = [LineChartDataSet]() var barSetArr = [BarChartDataSet]() for (i,subModel) in model.MonitorSeachDetailModelList.enumerated() { if subModel.currentType == "Line" { let linedataSet = generateLineData(model: subModel,count: i) setArr.append(linedataSet) let lineChartData = LineChartData(dataSets: setArr) data.lineData = lineChartData }else{ let bardataSet = generateBarData(model: subModel,count: i) barSetArr.append(bardataSet) let barChartData = BarChartData(dataSets: barSetArr) // (0.4 + 0.05) * 2 (data set count) + 0.1 = 1 let groupSpace = 0.06 let barSpace = 0.02 // x2 dataset var width:Double = 0.85 let count :Int = model.barCount if count > 1 { width = (1 - 0.06)/Double(count) - 0.02 barChartData.barWidth = width barChartData.groupBars(fromX: 0, groupSpace: groupSpace, barSpace: barSpace) } data.barData = barChartData } } chartView.xAxis.valueFormatter = IndexAxisValueFormatter(values: model.totalDateArr) chartView.rightAxis.valueFormatter = LargeValueFormatter() chartView.leftAxis.valueFormatter = LargeValueFormatter() if model.MonitorSeachDetailModelList.count > 1 { chartView.rightAxis.drawLabelsEnabled = true }else{ chartView.rightAxis.drawLabelsEnabled = false } chartView.data = data setMarkViewData() } func setMarkViewData() { let marker = MonitorSeachDetailMarkerView.init(insets: UIEdgeInsets(top: 10, left: 10, bottom: 10, right: 10)) chartView.marker = marker marker.chartView = chartView marker.modelData = self.chartModelData marker.setNeedsDisplay(marker.bounds) } func getWidthWithTitle(title:String,font:UIFont) -> CGFloat { let label = UILabel.init(frame: CGRect(x: 0, y: 0, width: 1000, height: 0)) label.text = title label.font = font label.sizeToFit() return label.frame.size.width } func generateLineData(model:MonitorSeachDetailModel,count:Int) -> LineChartDataSet { var entries = [ChartDataEntry]() for (i, dd) in model.dateData.enumerated() { if let dex = chartModelData?.totalDateArr.firstIndex(of: dd){ let entrie = ChartDataEntry(x: Double(dex), y: Double(model.valueData[i]) ?? 0.0) entries.append(entrie) } } var name = "" if self.chartModelData?.barCount ?? 0 > 1 { name.append("【左轴】") }else{ if self.chartModelData?.MonitorSeachDetailModelList.count ?? 1 > 1 { let relay:String = (count == 1 ? "【右轴】" : "【左轴】") name.append(relay) } } name.append(model.title) if !model.unit.isEmpty { name.append("(" + model.unit + ")") } let set = LineChartDataSet(entries: entries, label: name) set.setColor(UIColor.init(hex: model.color)) set.lineWidth = 2.5 set.setCircleColor(UIColor.clear) set.circleRadius = 0 set.circleHoleRadius = 0 set.fillColor = UIColor.clear set.mode = .linear set.drawValuesEnabled = false set.drawHorizontalHighlightIndicatorEnabled = false; set.highlightColor = .gray let randomColor = UIColor.init(hex: model.color) let gradientColors = [randomColor.alpha(0.0).cgColor, randomColor.alpha(0.7).cgColor] let gradient = CGGradient(colorsSpace: nil, colors: gradientColors as CFArray, locations: nil)! set.fill = LinearGradientFill.init(gradient: gradient, angle: 90) set.drawFilledEnabled = true // if self.chartModelData?.barCount ?? 0 > 1 { // set.axisDependency = .left // }else{ if count == 1 { set.axisDependency = .right }else{ set.axisDependency = .left } // } return set } func generateBarData(model:MonitorSeachDetailModel,count:Int) -> BarChartDataSet { var entries = [BarChartDataEntry]() for (i,dd) in chartModelData!.totalDateArr.enumerated() { if let dex = model.dateData.firstIndex(of: dd){ let entrie = BarChartDataEntry(x: Double(i), y: Double(model.valueData[dex])!) entries.append(entrie) }else{ let entrie = BarChartDataEntry(x: Double(i), y: 0) entries.append(entrie) } } var name = "" if self.chartModelData?.barCount ?? 0 > 1 { name.append("【左轴】") }else{ if self.chartModelData?.MonitorSeachDetailModelList.count ?? 1 > 1 { let relay:String = (count == 1 ? "【右轴】" : "【左轴】") name.append(relay) } } name.append(model.title) if !model.unit.isEmpty { name.append("(" + model.unit + ")") } let set = BarChartDataSet(entries: entries, label: name) set.setColor(UIColor.init(hex: model.color)) set.drawValuesEnabled = false // if self.chartModelData?.barCount ?? 0 > 1 { // set.axisDependency = .left // }else{ if count == 1 { set.axisDependency = .right }else{ set.axisDependency = .left } // } return set } } 在 2021-09-23 14:16:39，"lumm" ***@***.***> 写道： 这个问题怎么解决的？ 贴下你的代码 — You are receiving this because you commented. Reply to this email directly, view it on GitHub, or unsubscribe. Triage notifications on the go with GitHub Mobile for iOS or Android.

[LuDamon]

设置下 chartView.extraBottomOffset 试试

[adao3056]

leftAxis.axisMinimum = 0.0 rightAxis.axisMinimum = 0.0 搞定 在 2021-09-23 14:48:41，"lumm" ***@***.***> 写道： 设置下 chartView.extraBottomOffset 试试 — You are receiving this because you commented. Reply to this email directly, view it on GitHub, or unsubscribe. Triage notifications on the go with GitHub Mobile for iOS or Android.