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Description:

currency formatter

currency_formatter #
A package to easily format money. It supports setting a custom currency symbol and format,
using some of the inbuilt ones for the main currencies or using the system one.
Format money #
To set how a double will be formatted, create a CurrencyFormat:
CurrencyFormat euroSettings = CurrencyFormat(
code: 'eur',
symbol: '€',
symbolSide: SymbolSide.left,
thousandSeparator: '.',
decimalSeparator: ',',
symbolSeparator: ' ',
);
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symbolSide can be set to SymbolSide.left, SymbolSide.right, or SymbolSide.none.
thousandSeparator and decimalSeparator default to '.', ',' or ',','.' automatically
depending on symbolSide.
To format a num, CurrencyFormatter.format() is used:
num amount = 1910.9347;
String formatted = CurrencyFormatter.format(amount, euroSettings); // 1.910,93 €
String compact = CurrencyFormatter.format(amount, euroSettings, compact: true); // 1,91K €
String threeDecimal = CurrencyFormatter.format(amount, euroSettings, decimal: 3); // 1.910,945 €
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Parse formatted money #
To get a num from a formatted String, use CurrencyFormatter.parse():
// Above's example continuation
num parseFormatted = CurrencyFormatter.parse(formatted, euroSettings); // 1910.93
num parseCompact = CurrencyFormatter.parse(compact, euroSettings); // 1910.0
num parseThreeDecimal = CurrencyFormatter.parse(threeDecimal, euroSettings); // 1910.935
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Predefined CurrencyFormats #
Predefined settings for many currencies are also included in this package.
They are listed in the CurrencyFormatter.majorsList list and defined as static constants in the CurrencyFormat class.
String inUSD = CurrencyFormatter.format(amount, CurrencyFormat.usd); // $ 1,910.93
String inRUB = CurrencyFormatter.format(amount, CurrencyFormatter.fromCode('rub')!); // 1.910,93 ₽

String jpySymbol = CurrencyFormatter.jpy.symbol; // ¥
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Get local CurrencyFormat #
In Flutter, you can get the default CurrencyFormat according to the device
language using CurrencyFormat.local:
String inSystemCurrency = CurrencyFormatter.format(amount, CurrencyFormat.local ?? CurrencyFormat.usd);
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If instead you want to get the CurrencyFormat for a specific locale, use CurrencyFormat.fromLocale():
String inLocaleCurrency = CurrencyFormatter.format(amount, CurrencyFormat.fromLocale('en_US')!);
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Get CurrencyFormat from symbol or code #
You can get a CurrencyFormat from a currency symbol (if it is in
CurrencyFormatter.majors) with CurrencyFormat.fromSymbol():
String fromSymbol = CurrencyFormatter.format(amount, CurrencyFormat.fromSymbol('£')!); // £ 1,910.35

String fromCode = CurrencyFormatter.format(amount, CurrencyFormat.fromCode('gbp')!); // £ 1,910.35
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Using custom currencies #
Let's say you want to use the following custom currency seamlessly:
CurrencyFormat khr = CurrencyFormat(
symbol: '៛',
symbolSide: SymbolSide.right,
);
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You can create your own majors list:
const List<CurrencyFormat> myCurrencies = [
...CurrencyFormatter.majorsList,
khr,
];
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And use it to get the currency corresponding to a symbol or code, or the local one:
CurrencyFormat.fromSymbol('៛', myCurrencies); // khr
CurrencyFormat.fromCode('khr', myCurrencies); // khr

// custom local currency
CurrencyFormat? localCurrency() =>
CurrencyFormat.fromSymbol(CurrencyFormat.localSymbol, myCurrencies);
// or
CurrencyFormat? localCurrency() =>
CurrencyFormat.fromLocale(null, myCurrencies);
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