flutter_otp_text_field

Flutter_Otp_Text_Field is a TextField widget to help display different style pin. It supports all the platform’s flutter supports.

Feature 

• allows you to customize the shape of textField in any way you want
• built-in 2 commonly used pin styles of shape
• obscure support
• input decoration support
• support all the textField properties support
• Flutter web support

Installing 

Install the latest version from pub.

Installing

Use this package as a library

1. Depend on it

Add this to your package’s pubspec.yaml file:

dependencies:
  flutter_otp_text_field: ^0.0.1

2. Install it

You can install packages from the command line: with Flutter:

$ flutter packages get

Alternatively, your editor might support flutter packages get. Check the docs for your editor to learn more.

3. Import it

Now in your Dart code, you can use:

import 'package:flutter_otp_text_field/flutter_otp_text_field.dart';

Usage

        OtpTextField(
            numberOfFields: 5,
            borderColor: Color(0xFF512DA8),
            showFieldAsBox: true, //set to true to show as box or false to show as dash
            onCodeChanged: (String code) {
                //handle validation or checks here           
            },
            onSubmit: (String verificationCode){
              showDialog(
                  context: context,
                  builder: (context){
                    return AlertDialog(
                      title: Text("Verification Code"),
                      content: Text('Code entered is $verificationCode'),
                    );
                  }
              );
            }, // end onSubmit
          ),

Attributes

Customizable attributes for PinInputTextField

Attribute Name	Example Value	Description
numberOfFields	4	The default is 4
fieldWidth	40	allows to change the width of the textField
showFieldAsBox	true	changes the default decoration of the textFields to a box with borderRadius of 4.0
hasCustomInputDecoration	true	set this to true if you want to pass your own decoration
decoration	InputDecoration	set hasCustomInputDecoration to true and pass your own input decoration the way you see fit
filled	false	set to true if you want to pass a fillColor
fillColor	Colors.red	pass fillColor and set filled to true
borderRadius	BorderRadius.all(Radius.circular(4.0))	pass BorderRadius to customise textField when showFieldAsBox is set to true
margin	EdgeInsets.only(right: 8.0)	customize the margin between each textField
textStyle	TextStyle(fontSize: 20, color: Colors.green);	Add custom textStyle
borderWidth	2.0	Default value is 2.0, allows you to customize the width of the border
cursorColor	Colors.blue	Change color of textFields cursor. Defaults to [ThemeData.cursorColor] or [CupertinoTheme.primaryColor] depending on [ThemeData.platform].
mainAxisAlignment	MainAxisAlignment.center	Defaults to MainAxisAlignment.center
crossAxisAlignment	CrossAxisAlignment.center	Defaults to CrossAxisAlignment.center
onSubmit	(String pin){}	The callback will execute when user is done inputting the verification code.
keyboardType	TextInputType.number	Just like TextField’s keyboardType, the default is TextInputType.number
autoFocus	false	Same as TextField’s autoFocus, the default is false
enabled	true	Same as TextField’s enabled, the default is true
obscureText	false	Defaults to false
onCodeChanged	(String code){}	Executes every time a value is entered into the textField. Same as TextField’s onChanged

Download flutter otp text field package source code on GitHub

https://github.com/david-legend/otp_textfield