问题
I'm building a chart using iOS-charts
I'm trying to convert the floats into int, but iOS-charts only allows for Floats in the data entry:
let result = ChartDataEntry(value: Float(month), xIndex: i)
Does anyone know the method for making sure only ints are used?
回答1:
You just need to adjust the NSNumberFormatter
...
Example:
yAxis.valueFormatter = NSNumberFormatter()
yAxis.valueFormatter.minimumFractionDigits = 0
NSNumberFormatter
is a very powerful class, you can do much much more with it. :-)
回答2:
For Swift 3.0 and Charts 3.0 you need to enable and set granularity for the axis.
Example:
barChart.leftAxis.granularityEnabled = true
barChart.leftAxis.granularity = 1.0
回答3:
This worked for me. However, the y-axis labels will round when displaying small numbers, so if you are charting, say 1 or 2, the chart will display 0 twice. (See here: Force BarChart Y axis labels to be integers?)
let numberFormatter = NSNumberFormatter()
numberFormatter.generatesDecimalNumbers = false
chartDataSet.valueFormatter = numberFormatter
// Converting to Int for small numbers rounds weird
//barChartView.rightAxis.valueFormatter = numberFormatter
//barChartView.leftAxis.valueFormatter = numberFormatter
回答4:
You can try this one, it worked nicely for me
let formatter = NSNumberFormatter()
formatter.numberStyle = .NoStyle
formatter.locale = NSLocale(localeIdentifier: "es_CL")
BarChartView.leftAxis.valueFormatter = formatter
回答5:
Swift4.2 ; Xcode 10.0 :
let numberFormatter = NumberFormatter()
numberFormatter.generatesDecimalNumbers = false
barChart.leftAxis.valueFormatter = DefaultAxisValueFormatter.init(formatter: numberFormatter)
来源:https://stackoverflow.com/questions/31318858/ios-charts-float-to-integer-yaxis