1,导入PNChart库并建立桥接文件
2,该第三方库用到了一个类,一并导入
3,可能会报错,做如下修改
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4,用tableview创建一个简易的模版,用来显示对应的图表
5,折线图代码
func LineChart(){
print("LineChart")
//声明一个折线图
let LineChart = PNLineChart(frame: CGRectMake(-10,100,320,200))
//设置X坐标,间隔
LineChart.setXLabels(["1","2","3","4","5","6","7","8","9","10","11","12"], withWidth: 20)
//设置Y坐标数据
let dataArray = [5,1,2,3,3,4,8,7,6,4,3,2]
//配置折线
let LineData = PNLineChartData()
//颜色
LineData.color = UIColor.redColor()
//折点数目
LineData.itemCount = (UInt)(dataArray.count)
//
LineData.getData = ({(index:UInt)->PNLineChartDataItem in
let y:CGFloat = (CGFloat)(dataArray[(Int)(index)])
return PNLineChartDataItem(y:y)
})
/// 若有两组数据,只需添加Y数据和折线即可
//设置Y坐标数据
let dataArray1 = [8,7,6,5,5,4,3,1,2,4,5,6]
//配置折线
let LineData1 = PNLineChartData()
//颜色
LineData1.color = UIColor.blueColor()
//折点数目
LineData1.itemCount = (UInt)(dataArray1.count)
//
LineData1.getData = ({(index:UInt)->PNLineChartDataItem in
let y:CGFloat = (CGFloat)(dataArray1[(Int)(index)])
return PNLineChartDataItem(y:y)
})
//将数据添加到图表中,并进一步显示到view中
LineChart.chartData = [LineData,LineData1]
LineChart.strokeChart()
self.view.addSubview(LineChart)
//给图表添加legend
LineData.dataTitle = "lorry"
LineData1.dataTitle = "hehe"
LineChart.legendStyle = PNLegendItemStyle.Serial
let legend = LineChart.getLegendWithMaxWidth(320)
legend.frame = CGRectMake(30,300,320,100)
self.view.addSubview(legend)
//更新数据
legend.removeFromSuperview()
let dataArray2 = [9,7,6,5,4,4,3,1,2,3,4,3]
let LineData2 = PNLineChartData()
LineData2.color = UIColor.yellowColor()
LineData2.itemCount = (UInt)(dataArray2.count)
LineData2.getData = ({(index:UInt)->PNLineChartDataItem in
let y:CGFloat = (CGFloat)(dataArray2[(Int)(index)])
return PNLineChartDataItem(y:y)
})
LineData2.dataTitle = "laji"
LineChart.updateChartData([LineData2,LineData])
LineChart.strokeChart()
let legend2 = LineChart.getLegendWithMaxWidth(320)
legend2.frame = CGRectMake(30,300,320,100)
self.view.addSubview(legend2)
}
6,柱状图代码
func BarChart(){
print("BarChart")
let barChart = PNBarChart(frame: CGRectMake(5,100,320,200))
barChart.xLabels = ["x1","x2","x3","x4","x5"]
barChart.yValues = ["3","4","5","6","4"]
barChart.strokeChart()
self.view.addSubview(barChart)
}
7,环形图代码
func CircleChart(){
print("CircleChart")
//let CircleChart = PNCircleChart(frame: CGRectMake(5,100,320,200),total:NSNumber(double: 100),current:NSNumber(double: 75),clockwise:false)
let CircleChart = PNCircleChart(frame: CGRectMake(5,100,320,200), total: NSNumber(double: 100), current: NSNumber(double: 75), clockwise: false, shadow: false, shadowColor: UIColor.greenColor())
CircleChart.strokeColor = UIColor.blueColor()
CircleChart.strokeChart()
self.view.addSubview(CircleChart)
}
8,饼状图代码
func PieChart(){
print("PieChart")
let items = [PNPieChartDataItem(value:10,color: UIColor.blueColor(),description: "lorry"),PNPieChartDataItem(value:30,color: UIColor.redColor(),description: "yangyang"),PNPieChartDataItem(value:20,color: UIColor.grayColor(),description: "chongchong")]
let PieChart = PNPieChart(frame: CGRectMake(10,150,300,200), items: items)
PieChart.descriptionTextColor = UIColor.greenColor()
PieChart.descriptionTextFont = UIFont.systemFontOfSize(14)
PieChart.strokeChart()
self.view.addSubview(PieChart)
//前面已经设置了title,直接添加legend即可
let legend = PieChart.getLegendWithMaxWidth(320)
legend.frame = CGRectMake(30,500,320,100)
self.view.addSubview(legend)
}
9,回调函数,返回点击处的数据
继承协议
class ViewController: UIViewController,PNChartDelegate
实现协议方法
func userClickedOnLinePoint(point: CGPoint, lineIndex: Int) {
print("\(lineIndex)"+":"+"\(point)")
print("为嘛没反应")
}
func userClickedOnLineKeyPoint(point: CGPoint, lineIndex: Int, pointIndex: Int) {
}