如何快速将阿拉伯数字转换为英文数字? [英] how to convert Arabic numbers to English numbers in swift?

问题描述

在我的应用程序中，我有 5 个 uitextfields.我的目标用户是阿拉伯语使用者，因此当他们使用我的应用时，他们会插入英语或阿拉伯语数字.

in my app, I have 5 uitextfields. My intended users are Arabic speakers so when they use my app, they will either insert number in English or in Arabic.

该应用程序可以很好地处理英文数字.但是，当我运行它并以阿拉伯语插入数字时，该应用程序将文本字段处理为好像它们都为空并给出答案为 0

The app works just fine with English numbers. However, when I run it and insert numbers in Arabic, the app deals with the textfields as if they all were empty and gives the answer as 0

如何在不忽略阿拉伯数字的情况下确保文本字段不是 nill 和 double ?

How can I make sure that the textfields are not nill AND a double, whithout ignoring Arabic numbers?

这是calButton"函数内部的代码:

This is the code inside the "calButton" function:

     /*let value1 = Double(income.text ?? "") ?? 0
    let value2 = Double(salaries.text ?? "") ?? 0
    let value3 = Double(tools.text ?? "") ?? 0
    let value4 = Double(maintinance.text ?? "") ?? 0
    let value5 = Double(otherExpenses.text ?? "") ?? 0
    let sum = value1 - ( value2 + value3 + value4 + value5)

    print("result is: \(sum)")*/



    let textFields = [income, salaries, tools, maintinance, otherExpenses]
    var sum = 0.0
    for textField in textFields {
        if let number = Double((textField?.text!)!) { //checks that it is not nil AND a Double
            sum += number
        }
    }

    expensesTotal.text = String(sum)
    // print("result is: \(sum)")

推荐答案

需要先将阿拉伯数字字符串转换成英文，然后再做计算部分.

You need to convert the arabic number string to english first and then do the calculation part.

    let numberStr: String = "٨٦٩١٢٨٨١"
    let formatter: NumberFormatter = NumberFormatter()
    formatter.locale = NSLocale(localeIdentifier: "EN") as Locale!
    let final = formatter.number(from: numberStr)
    let doubleNumber = Double(final!)
    print("\(doubleNumber)")

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