quantity_input

Description:

quantity input

Quantity Input #

A Flutter plugin to handle number inputs with increment and decrement buttons.
Preview #

Usage #
In the pubspec.yaml of your flutter project, add the following dependency:
dependencies:
...
quantity_input: ^1.0.2
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You can create a simple quantity input widget with the following example:
import 'package:flutter/material.dart';
import 'package:quantity_input/quantity_input.dart';

void main() {
runApp(MyApp());
}

class MyApp extends StatefulWidget {
@override
State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
int simpleIntInput = 0;

@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Example',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: SafeArea(
child: Scaffold(
appBar: AppBar(
title: Text('Example')
),
body: Center(
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
QuantityInput(
value: simpleIntInput,
onChanged: (value) => setState(() => simpleIntInput = int.parse(value.replaceAll(',', '')))
),
Text(
'Value: $simpleIntInput',
style: TextStyle(
color: Colors.black,
fontWeight: FontWeight.bold
)
)
]
)
)
)
)
);
}
}
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If the value returned by onChanged has tousand separators, it is recommended to remove the commas from String before parsing as shown in example before.
API #



Attribute
Type
Required
Description
Default value




value
int/double
✔️
Has to be an int or double depending on QuantityInputType variable



onChanged
Function(String)
✔️
Detects changes to the input and sends value through param



step
int/double
❌
The value that is incremented or decremented each time the user presses a button
1


decimalDigits
int
❌
The number of decimal places that can be displayed for double input
1


minValue
int/double
❌
Set min value to be displayed in input
1


maxValue
int/double
❌
Set max value to be displayed in input
100


inputWidth
double
❌
The width of the textfield input
80


buttonColor
Color
❌
Sets color for increment and decrement buttons
Primary app color


iconColor
Color
❌
Sets color for icons inside increment and decrement buttons
Colors.white


label
String
❌
Sets label for input



readOnly
bool
❌
Determines if the input will be readOnly
false


acceptsZero
bool
❌
If set to true, the input can accept the value 0
false


acceptsNegatives
bool
❌
If set to true, the input can accept negative values
false


type
QuantityInputType
❌
Determines if the input will manage values as int or double
QuantityInputType.int


decoration
InputDecoration
❌
Sets custom InputDecoration to the widget TextFormField



elevation
double
❌
Sets elevation to increment and decrement buttons
5



Issues & Suggestions #
If you encounter any issue you or want to leave a suggestion you can do it by filling an issue.
Thank you for the support! #