Change DecimalFormat locale

Question

I have custom DecimalFormat in Edittext\'s addTextChangedListener method, everything is working perfectly but when I change language (locale) my addTextChanged

Answer 1

You can specify the number of fraction digit after the decimal point, and/or the numbers before the decimal point. Of-course, setting the current locale is also important.

   private String formatNumber(double number) {

    NumberFormat nf = NumberFormat.getNumberInstance(Locale.getDefault());
    if (nf instanceof DecimalFormat) {
        try {
            DecimalFormat formatter = (DecimalFormat) nf;
            formatter.setDecimalSeparatorAlwaysShown(true);
            formatter.setMinimumFractionDigits(2);
            formatter.setMaximumFractionDigits(2);
            return formatter.format(new BigDecimal(number);
        } catch (NumberFormatException nfe) {
            nfe.printStackTrace();
        }
    }
    return null;
}

Answer 2

if you want to use only NumberFormat, you can do this way:

unicoinsAmmount.setText(NumberFormat.getNumberInstance(Locale.US).format(vc));

Answer 3

You may try by first converting to NumberFormat and then Cast it to DecimalFormat

Integer vc = 3210000;
NumberFormat nf = NumberFormat.getNumberInstance(Locale.US);
DecimalFormat formatter = (DecimalFormat) nf;
formatter.applyPattern("#,###,###");
String fString = formatter.format(vc);
return convertNumbersToEnglish(fString);

Answer 4

Use simply this method to convert current localization wise number,

public static String currencyFormatter(String balance) {
    try {
        double amount = Double.parseDouble(balance);
        DecimalFormat decimalFormat = new DecimalFormat("##,##,##,###.##");
        DecimalFormat locationSpecificDF = null;
        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP) {
            locationSpecificDF = (DecimalFormat) DecimalFormat.getNumberInstance(Locale.forLanguageTag("bn")); // Ex. en, bn etc.
        } else {
            return decimalFormat.format(amount);
        }
        return locationSpecificDF.format(amount);
    } catch (Exception e) {
        return balance;
    }
}

or follow this link.

Answer 5

You can also specify locale for DecimalFormat this way:

DecimalFormatSymbols symbols = new DecimalFormatSymbols(Locale.US);
DecimalFormat format = new DecimalFormat("##.########", symbols);

Answer 6

You can use basic constructor for setting Locale while creating DecimalFormat object:

DecimalFormat dFormat = new DecimalFormat("#.#", new DecimalFormatSymbols(Locale.US));