NSNumberFormatter:大量显示'k'而不是',000'吗? [英] NSNumberFormatter : Show 'k' instead of ',000' in large numbers?
问题描述
如果可能的话,我想将我的大笔金额从100,000更改为$ 100,000.
I'd like to change my large numbers from 100,000 to $100K if this is possible.
这是我到目前为止所拥有的:
let valueFormatter = NSNumberFormatter()
valueFormatter.locale = NSLocale.currentLocale()
valueFormatter.numberStyle = .CurrencyStyle
valueFormatter.maximumFractionDigits = 0
我的问题
使用NSNumberFormatter,我如何输出10万美元而不是10万美元?
My Question
Using NSNumberFormatter, how can I output $100K rather than $100,000?
我最初的问题:
这是我到目前为止所拥有的:
self.lineChartView.leftAxis.valueFormatter = NSNumberFormatter()
self.lineChartView.leftAxis.valueFormatter?.locale = NSLocale.currentLocale()
self.lineChartView.leftAxis.valueFormatter?.numberStyle = .CurrencyStyle
self.lineChartView.leftAxis.valueFormatter?.maximumFractionDigits = 0
翻译为:
let valueFormatter = NSNumberFormatter()
valueFormatter.locale = NSLocale.currentLocale()
valueFormatter.numberStyle = .CurrencyStyle
valueFormatter.maximumFractionDigits = 0
我的输出如下:
使用NSNumberFormatter,我如何输出10万美元而不是10万美元?
Using NSNumberFormatter, how can I output $100K rather than $100,000?
更新:
我想提供有关正在发生的事情的上下文,观看评论.
I wanted to provide context as to whats going on, watch comments.
func setDollarsData(months: [String], range: Double) {
var dataSets: [LineChartDataSet] = [LineChartDataSet]()
var yVals: [ChartDataEntry] = [ChartDataEntry]()
for var i = 0; i < months.count; i++ {
// I'm adding my values here in value:, value takes a Double
yVals.append(ChartDataEntry(value: county[userFavs[0]]![i], xIndex: i))
}
let set1: LineChartDataSet = LineChartDataSet(yVals: yVals, label: self.userFavs[0])
set1.axisDependency = .Left
set1.setColor(UIColor.redColor().colorWithAlphaComponent(0.5))
set1.setCircleColor(UIColor.redColor())
set1.lineWidth = 2.0
set1.circleRadius = 6.0
set1.fillAlpha = 65 / 255.0
dataSets.append(set1)
let data: LineChartData = LineChartData(xVals: months, dataSets: dataSets)
data.setValueTextColor(UIColor.whiteColor())
// this is where I set the number formatter
self.lineChartView.gridBackgroundColor = UIColor.darkGrayColor()
self.lineChartView.leftAxis.startAtZeroEnabled = false
self.lineChartView.leftAxis.valueFormatter = NSNumberFormatter()
self.lineChartView.leftAxis.valueFormatter?.locale = NSLocale.currentLocale()
self.lineChartView.leftAxis.valueFormatter?.numberStyle = .CurrencyStyle
self.lineChartView.leftAxis.valueFormatter?.maximumFractionDigits = 0
// set it to the chart // END OF THE LINE
self.lineChartView.data = data // outputs to my chart
}
如您所见,一旦将数字转储到yVals中,我将失去对它们的访问权限,因此,这些扩展仅在我侵入框架后才有效.
As you can see, once I dump the numbers into yVals, I lose access to them so those extensions will only work if I hack into the framework.
推荐答案
编辑/更新
迅速3或更高版本
extension FloatingPoint {
var kFormatted: String {
return String(format: self >= 1000 ? "$%.0fK" : "$%.0f", (self >= 1000 ? self/1000 : self) as! CVarArg )
}
}
您可以像这样使用它来格式化输出:
The you can use it like this to format your output:
10.0.kFormatted // "$10"
100.0.kFormatted // "$100"
1000.0.kFormatted // "$1K"
10000.0.kFormatted // "$10K"
162000.0.kFormatted // "$162K"
153000.0.kFormatted // "$153K"
144000.0.kFormatted // "$144K"
135000.0.kFormatted // "$135K"
126000.0.kFormatted // "$126K"
这篇关于NSNumberFormatter:大量显示'k'而不是',000'吗?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!