Missing number input controller for flutter apps

• formats as-you-type text fields as numbers (decimals, currency or integers)
• extracts num value from the input
• an example with final controller = NumberEditingTextController.currency(currencyName: 'JPY'); controller

• install the library

flutter pub add number_editing_controller

Working example can be found in /example directory

• first you should define your controller

final controller = NumberEditingTextController.integer();

final controller = NumberEditingTextController.decimal();

final controller = NumberEditingTextController.currency();

• optionally you can provide locale to use locale-based formatting

• for currency() there's also currencyName and currencySymbol parameters available

• you can set allowNegative to false to allow only unsigned input

• set this controller as the controller for the target TextField

• now the TextField would filter out all non-integer symbols

• you can extract the value with controller.number