iOS 图表库：SwiftCharts
jopen
9年前
wiftCharts for iOS 是基于图层的图表库。
特性列表：
- Bars - plain, stacked, grouped, horizontal, vertical
- Scatter
- Line / Multiple lines
- Areas
- Bubble
- Multiple axis
- Custom units
- Custom views
- Multiple labels (x axis)
- Candlestick
- Cubic line
- Complex interactivity support
- Easy extensibility
Swift 1.2, iOS 7/8
let labelSettings = ChartLabelSettings(font: ExamplesDefaults.labelFont) let chartPoints = [(2, 2), (3, 1), (5, 9), (6, 7), (8, 10), (9, 9), (10, 15), (13, 8), (15, 20), (16, 17)].map{ChartPoint(x: ChartAxisValueInt($0.0), y: ChartAxisValueInt($0.1))} let xValues = Array(stride(from: 2, through: 16, by: 2)).map {ChartAxisValueInt($0, labelSettings: labelSettings)} let yValues = Array(stride(from: 0, through: 20, by: 2)).map {ChartAxisValueInt($0, labelSettings: labelSettings)} let xModel = ChartAxisModel(axisValues: xValues, axisTitleLabel: ChartAxisLabel(text: "Axis title", settings: labelSettings)) let yModel = ChartAxisModel(axisValues: yValues, axisTitleLabel: ChartAxisLabel(text: "Axis title", settings: labelSettings)) let chartFrame = ExamplesDefaults.chartFrame(self.view.bounds) let chartSettings = ExamplesDefaults.chartSettings let coordsSpace = ChartCoordsSpaceLeftBottomSingleAxis(chartSettings: chartSettings, chartFrame: chartFrame, xModel: xModel, yModel: yModel) let (xAxis, yAxis, innerFrame) = (coordsSpace.xAxis, coordsSpace.yAxis, coordsSpace.chartInnerFrame) // create layer with line let lineModel = ChartLineModel(chartPoints: chartPoints, lineColor: UIColor(red: 0.4, green: 0.4, blue: 1, alpha: 0.2), lineWidth: 3, animDuration: 0.7, animDelay: 0) let chartPointsLineLayer = ChartPointsLineLayer(xAxis: xAxis, yAxis: yAxis, innerFrame: innerFrame, lineModels: [lineModel]) // view generator - creates circle view for each chartpoint let circleViewGenerator = {(chartPointModel: ChartPointLayerModel, layer: ChartPointsLayer, chart: Chart) -> UIView? in return ChartPointCircleView(center: chartPointModel.screenLoc, size: CGSizeMake(20, 20), settings: ChartPointCircleViewSettings(animDuration: 0.5)) } // create layer that uses the view generator let chartPointsCircleLayer = ChartPointsViewsLayer(xAxis: xAxis, yAxis: yAxis, innerFrame: innerFrame, chartPoints: chartPoints, viewGenerator: circleViewGenerator, displayDelay: 0, delayBetweenItems: 0.05) // create layer with guidelines var settings = ChartGuideLinesDottedLayerSettings(linesColor: UIColor.blackColor(), linesWidth: ExamplesDefaults.guidelinesWidth, axis: .XAndY) let guidelinesLayer = ChartGuideLinesDottedLayer(xAxis: xAxis, yAxis: yAxis, innerFrame: innerFrame, settings: settings) let chart = Chart( frame: chartFrame, layers: [ xAxis, yAxis, guidelinesLayer, chartPointsLineLayer, chartPointsCircleLayer ] ) self.view.addSubview(chart.view) self.chart = chart