text_field_validator 1.0.1

A flutter package for both Android and iOS which provides the validation functionalities for the input fields.

A flutter package for both Android and iOS which provides the validation functionalities for the input fields.

Features

Provides validation for the input types 1. text 2. password 3. email 4. phone 5. url

Getting started

Add the text_field_validator package into pubspec.yaml file start working. import the package as import 'package:text_field_validator/text_field_validator.dart';

Usage

import 'package:text_field_validator/text_field_validator.dart';

class ValidatorTest extends StatefulWidget {
    const ValidatorTest({Key? key}) : super(key: key);

    @override
    State<ValidatorTest> createState() => _ValidatorTestState();
}

class _ValidatorTestState extends State<ValidatorTest> {
    @override
    Widget build(BuildContext context) {
        return Scaffold(
            appBar: AppBar(),
            body: Container(
                padding: const EdgeInsets.symmetric(horizontal: 16),
                child: Center(
                    child: Column(
                        children: [
                            TextFormField(
                                validator: (value) {
                                    return TextFieldValidator.textValidator(
                                        value: value,
                                    );
                                },
                            ),
                            const SizedBox(height: 20),
                            TextFormField(
                                validator: (value) {
                                    return TextFieldValidator.passWordValidator(
                                        password: value,
                                    );
                                },
                            ),
                        ],
                    ),
                ),
            ),
        );
    }
}

Added Input Formatters

1. Date and Time Input Formatter

• New Enum:
  Added FormatterEnum to specify common date and time formats (e.g., DD-MM-YYYY, YYYY-MM-DD HH:MM:SS).

• Flexible Separators:
  The dateFormatter now accepts two parameters:

  • dateSeparator (e.g., -, /)
  • timeSeparator (e.g., :, .)
    This allows you to customize the format for both date and time parts.

• Supports Date & Time:
  The formatter supports both date and time fields, handling patterns with D, M, Y, H, and S (for day, month, year, hour, second).

• Usage Example:

  inputFormatters: InputFormatter.dateFormatter(
    FormatterEnum.ddMMyyyyhhmmss,
    dateSeparator: '/',
    timeSeparator: '.',
  )
  // Result: DD/MM/YYYY HH.MM.SS
  

Input Formatters

This package provides a variety of input formatters for Flutter TextFormField and TextField widgets, making it easy to restrict and format user input.

Available Formatters

1. Number Formatter

Allows only numeric input (digits only).

inputFormatters: InputFormatter.numberFormatter(),

2. Decimal Formatter

Allows numeric input with decimal points, useful for prices or measurements.

inputFormatters: InputFormatter.decimalFormatter(decimalRange: 2),

3. Alphabet Formatter

Allows only alphabetic input (letters only).

inputFormatters: InputFormatter.alphabetFormatter(),

4. Alphanumeric Formatter

Allows only alphanumeric input (letters and digits).

inputFormatters: InputFormatter.alphaNumericFormatter(),

5. Upper Case Formatter

Allows only upper-case alphabetic input.

inputFormatters: InputFormatter.upperCaseFormatter(),

6. Lower Case Formatter

Allows only lower-case alphabetic input.

inputFormatters: InputFormatter.lowerCaseFormatter(),

7. No Leading Space Formatter

Prevents leading spaces in the input.

inputFormatters: InputFormatter.noLeadingSpaceFormatter(),

8. No Double Space Formatter

Prevents occurrence of double spaces in the input.

inputFormatters: InputFormatter.noDoubleSpaceFormatter(),

9. Capitalize First Letter Formatter

Capitalizes the first letter of the input string.

inputFormatters: InputFormatter.capitalizeFirstLetterFormatter(),

10. Credit Card Number Formatter

Formats input to ensure it matches the structure of a credit card number (e.g., 1234-5678-9012-3456).

inputFormatters: InputFormatter.creditCardNumberFormatter(),

11. Phone Number Formatter

Formats the input to ensure it matches the structure of a phone number, including optional country code.

inputFormatters: InputFormatter.phoneNumberFormatter(),

12. Custom Pattern Formatter

Allows input formatting based on a custom pattern, where X represents a required digit.

inputFormatters: InputFormatter.customPatternFormatter('XXX-XXX-XXXX'),