Change DecimalFormat locale

Question

I have custom DecimalFormat in Edittext's addTextChangedListener method, everything is working perfectly but when I change language (locale) my addTextChangedListener is not working.

double answer = inputDouble * counterToDouble;
DecimalFormat df = new DecimalFormat("##.########");
// df=(DecimalFormat)numberFormat;

df.setRoundingMode(RoundingMode.DOWN);
answer = Double.parseDouble(df.format(answer));

unicoinsAmmount.setText(String.valueOf(df.format(answer)));

I searched about my problem and found a NumberFormat solution:

NumberFormat numberFormat = NumberFormat.getNumberInstance(Locale.US);

but I don't know how I can use this code.

Solution 1

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);

Solution 2

You can specify locale for DecimalFormat this way:

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

Solution 3

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

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

Solution 4

you can create an extension function like below

 fun Double.toRate(): String? {
        val symbols = DecimalFormatSymbols(Locale.US)
        val decimalFormat = DecimalFormat("##.######", symbols)
        decimalFormat .minimumFractionDigits = 2
        return decimalFormat .format(this)
    }

Thanks

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Comments

[Admin]

Try DecimalFormat df = DecimalFormat.getInstance(Locale.US);

[BekaKK]

thank but i how i can use locale with this pattern ##.########? @Viren

[Admin]

Try DecimalFormat formater = DecimalFormat.getInstance(Locale.US); formater.applyPattern("#.##");

[OneCricketeer]

Also in the documentation. docs.oracle.com/javase/tutorial/i18n/format/decimalFormat.ht‌​ml

[Alessandro Scarozza]

should be ACCEPTED answer!

[Agent_L]

That's Java's java.text.DecimalFormat. The question is about Android's android.icu.text.DecimalFormat.

[Abhijith Brumal]

yeah it should be