Android In dutch language comma (,) is interpreted as dot (.)-CodePudding

I am using the following code to format the amount entered by user in EditText.

fun String.formatWithComma(): String {
    return try {
        val formatter = DecimalFormat("#,###,###")
        formatter.format(toDouble())
    } catch (ex: Exception) {
        return ""
    }
}

But when I switch the phone language to dutch, the comma is converted to dot (.). Like if user wants to type 4,323 , it is converted to 4.323.

I want to comma instead of dot even in dutch language. Any solution

CodePudding user response：

Some European countries use comma and dot in the different way than USA and England. You should add an extra line to instruct it before you use it:

formatter.decimalFormatSymbols = DecimalFormatSymbols.getInstance(Locale.ENGLISH)

CodePudding user response：

I am not sure, if this will fix your problem.

println("${"4.323.001".formatWithComma()}")

If we found multiple dots in the string, I am replacing that values, Improve this solution based on your needs.

fun String.formatWithComma(): String {
    return try {
        var lastIndexOf = this.lastIndexOf(".");
        var temp = this
        var temp2 = ""
        if(this.split(".").size >= 2)
        {
        temp = this.substring(0,lastIndexOf).replace(".","");
        temp2 = this.substring(lastIndexOf,this.length);    
        }
        
        val formatter = DecimalFormat("#,###,###.###")
        return formatter.format((temp temp2).toDouble())
    } catch (ex: Exception) {
        return ""
    }
}

CodePudding user response：

On the basis of answer given by AIMIN PAN

Final solution to fix this issue is

fun String.formatWithComma(): String {
    return try {
        val formatter = DecimalFormat("#,###,###")
        formatter.decimalFormatSymbols = DecimalFormatSymbols.getInstance(Locale.ENGLISH)
        formatter.format(toDouble())
    } catch (ex: Exception) {
        return ""
    }
}