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//复用DataSet

letmyDataSetCount =barChartView.data?.dataSetCount

varchartDataSet1 :BarChartDataSet

if(myDataSetCount !=nil){

chartDataSet1 =barChartView.data?.dataSets[0]as!BarChartDataSet

chartDataSet1.values= dataEntries1

barChartView.data?.notifyDataChanged()

barChartView.notifyDataSetChanged()

}else{

//线1参数

chartDataSet1=BarChartDataSet(values: dataEntries1, label:"")

chartDataSet1.colors= [UIColor.yellow,UIColor.cyan,UIColor.orange]

//显示图例

chartDataSet1.stackLabels= ["Milk","Water","Juice"]

chartDataSet1.drawValuesEnabled=false

chartDataSet1.highlightEnabled=false

letdataSet = [chartDataSet1]

letchartData =BarChartData(dataSets: dataSet)

barChartView.data= chartData

}

chartDataSet1.valueColors= [UIColor.blue]

//barChartView.animate(xAxisDuration: animTimeInterval)

barChartView.animate(xAxisDuration:animTimeInterval, yAxisDuration:animTimeInterval)

}