form_validation_utils 0.0.3

A set of helper functions to validate common user input in Flutter apps.

Form Validation Utils

A lightweight Flutter package providing validation helpers for common inputs like emails, passwords, and phone numbers.

Features

• Email Validation: Check if an email follows the correct format.
• Password Strength Validation: Validate password strength based on length, characters, and complexity.
• Username Validation: Ensure the username follows specific rules such as allowed characters and minimum length.
• Phone Number Validation: Validate phone numbers to ensure they contain only digits and meet length requirements.

Getting started

To start using form_validation_utils, add it to your pubspec.yaml file:

For Email Validation

                TextFormField(
                  controller: emailController,
                  validator:
                      FormValidators.validateEmail, // validate email input
                  decoration: InputDecoration(
                    hintText: 'Email',
                    filled: true,
                    fillColor: Colors.white,
                    border: OutlineInputBorder(
                      borderRadius: BorderRadius.circular(20),
                    ),
                  ),
                ),

For Password Validation

                TextFormField(
                  controller: passwordController,
                  validator:
                      FormValidators.validatePassword, // validate password input
                  decoration: InputDecoration(
                    hintText: 'Password',
                    filled: true,
                    fillColor: Colors.white,
                    border: OutlineInputBorder(
                      borderRadius: BorderRadius.circular(20),
                    ),
                  ),
                ),

For User Name Validation

                TextFormField(
                  controller: userController,
                  validator:
                      FormValidators.validateUsername,// validate User Name input
                  decoration: InputDecoration(
                    hintText: 'User Name',
                    filled: true,
                    fillColor: Colors.white,
                    border: OutlineInputBorder(
                      borderRadius: BorderRadius.circular(20),
                    ),
                  ),
                ),

Next Goals

• URL Validation: Validate URLs to check for valid protocols and structure.
• Date Validation: Check if a date matches specific formats like dd/mm/yyyy or yyyy-mm-dd.
• Credit Card Validation: Validate credit card numbers using Luhn's algorithm.