NumberFormatter分组未按预期工作 [英] NumberFormatter grouping not working as expected

问题描述

在进行货币格式设置时，我尝试格式化智利比索时发现了一个问题.

Working on currency formatting, I've found an issue when trying to format Chilean pesos.

以下代码:

let priceFormatter = NumberFormatter()
priceFormatter.locale = Locale(identifier: "es_CL")
priceFormatter.numberStyle = .currency
priceFormatter.currencyCode = "CLP"

priceFormatter.string(from: 9990) // A
priceFormatter.string(from: 99900) // B

执行此操作，我得到 A 的 $ 9990 和 B 的 $ 99.990 . 我想要实现的是 A

Executing this I get $9990 for A and $99.990 for B.
What I want to achieve is $9.990 for A

好像格式化程序没有在第一种情况下添加千位分组分隔符，我不知道为什么.我尝试将groupingSize设置为3，但没有成功.

Looks like the formatter is not adding the thousand grouping separator on the first case, which I am not sure why. I have tried adding setting the groupingSize to 3 without success.

(这仅发生在4位数字上)

(This only happens with 4 digits)

推荐答案

我试图实现相同的目标，最终我要做的是:

I was trying to achieve the same thing, what I ended up doing was this:

let price: Double = 1000
let currencyFormatter = NumberFormatter()
currencyFormatter.numberStyle = .decimal
currencyFormatter.groupingSeparator = "."
currencyFormatter.maximumFractionDigits = 0
let balanceText = currencyFormatter.string(from: NSNumber(value: price))!

return "$" + balanceText

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