Custom text input formatters that can be used with TextField and TextFormField widgets are available in this package.

Features

• Credit/Debit card number formatter
• Credit/Debit card expiration date formatter
• Decimal values formatter useful for currency values etc.

Installation

Add in the pubspec.yaml

dependencies:
  quick_input_formatters ^0.0.3

Usage

Usage of DecimalTextInputFormatter in TextField/TextFormField to format a number input value with 2 decimal places.

Widget get currencyTextField => TextField(
  inputFormatters: [
    // Use flutter input formatters to improve support
    FilteringTextInputFormatter.deny(RegExp(r'[a-zA-Z]')), // Denies letters
    FilteringTextInputFormatter.deny(RegExp(r' ')), // Denies whitespaces
    FilteringTextInputFormatter.deny(RegExp(r'-')), // Denies -

    // Use this input formatter to convert number inputs with decimal places
    // (Here it is 2 decimal places because user inputs currency values,
    DecimalTextInputFormatter(2)
  ],
);