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Flutter PasswordValidator: A Flutter Package to Ensure Strong Passwords

Build a more secure App with Flutter

Flutter Password Validator

Introduction :

Validation is an essential aspect of building robust and reliable mobile applications, and it plays a significant role in ensuring that user inputs are correct and meet the expected criteria. In the context of Flutter, which is a popular open-source UI framework for building natively compiled applications for mobile, web, and desktop from a single codebase, you can implement validation to validate user inputs in forms and other interactive elements.

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

dependencies:
  flutter_pw_validator: ^1.6.0

flutter_pw_validator | Flutter Package

Now in your Dart code, you can use:

import 'package:flutter_pw_validator/flutter_pw_validator.dart';

put this code in textfield

new TextField(
    controller: _passwordController
),
new FlutterPwValidator(
    controller: _passwordController,
    minLength: 6,
    uppercaseCharCount: 2,
    lowercaseCharCount: 2,
    numericCharCount: 3,
    specialCharCount: 1,
    width: 400,
    height: 150,
    onSuccess: yourCallbackFunction,
    onFail: yourCallbackFunction
)

output:

FullCode :

GitHub - arunpradhan28/password_validator

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