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MoneyTextFormField is one of the flutter widget packages that can be used to input values in the form of currencies, by displaying the output format in realtime.
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README.md

MoneyTextFormField

MoneyTextFormField is one of the flutter widget packages that can be used to input values in the form of currencies, by displaying the output format in realtime.

This widget uses the FlutterMoneyFormatter package as a basic engine that has a very powerful ability to format currencies.

latest version last commit License

Dependencies :

intl


Install

For complete steps in installing MoneyTextFormField you can see in the Installation Guide.

Usage

The following is the simplest example of using MoneyTextFormField:

import 'package:moneytextformfield/moneytextformfield.dart';

  /// ... some lines of code ...
  MoneyTextFormField(
    settings: MoneyTextFormFieldSettings()
  )
  /// ... some lines of code ...

For those of you who have not yet understood how to implement the widget package, you can use the following code in the main.dart file on your Flutter project:

import 'package:flutter/material.dart';
import 'package:moneytextformfield/moneytextformfield.dart';

void main() => runApp(MyApp());

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  TextEditingController mycontroller = TextEditingController();

  @override
  void initState() {  
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('MoneyTextFormField Demo'),
        ),
        floatingActionButton: FloatingActionButton(
          onPressed: () => print(mycontroller.text),
          child: Icon(Icons.save),
        ),
        body: Column(
          children: <Widget>[
            /// Begin of :> MoneyTextFormField
            MoneyTextFormField(
              settings: MoneyTextFormFieldSettings(
                controller: mycontroller
              )
            )
            /// End of :> MoneyTextFormField
          ]
        )
      )
    );
  }
}

From the above code it will look more or less like the following:

MoneyTextFormField

Figure 1: Using full format

By doing a little modification, you will get the following results:

MoneyTextFormField

Figure 2: Using compact format

Referring to the example code above, to retrieve the value inputted by the user, you can get it through the mycontroller.text as in the onPressed event in the FloatingActionButton widget.


Configurations

For now, MoneyTextFormField only uses one property to configure the display of that object, the settings property that has a data type is an instance of MoneyTextFormFieldSettings.

MoneyTextFormFieldSettings

Name Data Type Description
controller TextEditingController A controller for an editable text field.
validator FormFieldValidator<String> An optional method that validates an input. Returns an error string to display if the input is invalid, or null otherwise.
inputFormatters List<TextInputFormatter> A TextInputFormatter can be optionally injected to provide as-you-type validation and formatting of the text being edited.
onChanged void An optional method that register a closure to be called when the object changes.
moneyFormatSettings MoneyFormatSettings See here
appearanceSettings AppearanceSettings See here
enabled bool Whether the form is able to receive user input.

Tips:

No need to initialize the value in controller.text, because the value will be ignored. the controller property is only intended to capture the value inputted by the user.

Notes:

The value contained in controller.text is exactly the same as the one inputted by the user and has a String data type. If you want to get results in the same format, you can use the FlutterMoneyFormatter package which is also used by MoneyTextFormField.

See detailed information about FlutterMoneyFormatter.

AppearanceSettings

Name Data Type Description
labelText String Text that describes the input field. Default value is 'Amount'
hintText String Text that suggests what sort of input the field accepts.
icon Widget An icon to show before the input field and outside of the decoration's container.
labelStyle TextStyle The style to use for the labelText when the label is above (i.e., vertically adjacent to) the input field.
inputStyle TextStyle The style to use for the input field.
formattedStyle TextStyle The style to use for the formatted output text.
errorStyle TextStyle The style to use for the errorText
padding EdgeInsetGeometry The amount of space by which to inset the widget

MoneyFormatSettings

Name Data Type Description
amount double Decimal value that will be used when initializing the widget. Default value is 0.00.
fractionDigits int The fraction digits that will be used on formatted output. Default value is 2.
currencySymbol String The symbol that will be used on formatted output. Default value is '$' (dollar sign).
thousandSeparator String The character that will be used as thousand separator on formatted output. Default value is ',' (comma).
decimalSeparator String The character that will be used as decimal separator on formatted output. Default value is '.' (dot).
symbolAndNumberSeparator String The character that will be used as separator between symbol and number. Default value is ' ' (space).
displayFormat MoneyDisplayFormat See here

MoneyDisplayFormat

MoneyDisplayFormat is an enum object with values such as the following:

Name Description
nonSymbol Used to display currency values in full format and without a currency symbol.
symbolOnLeft Used to display currency values in full format with currency symbols on the left.
symbolOnRight Used to display currency values in full format with currency symbols on the right.
compactNonSymbol Used to display currency values in a short format and without a currency symbol.
compactSymbolOnLeft Used to display currency values in a short format with a currency symbol on the left.
compactSymbolOnRight Used to display currency values in a short format with a currency symbol on the right.

Demo

For more complete samples, you can grab it from the example directory.

Our Other Package

See our other packages here.

Help Me

If you find any issues, bugs, have questions, or want to request a new features you can do it here. You can also help me to improve features or fix some issues by forking this project via Github

Change Log

Are you curious about the changes that occur in each version? See here for detailed informations.


License

Copyright (c) 2019, Fadhly Permata <fadhly.permata@gmail.com>
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this
   list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

The views and conclusions contained in the software and documentation are those
of the authors and should not be interpreted as representing official policies,
either expressed or implied, of the MoneyTextFormField project.
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