custom_main_text_field

A highly customizable Flutter text field widget with password visibility toggle, validation, focus states, and 40+ styling options.

Features

✨ Password toggle – show/hide password with one tap
🎯 Form validation – integrates with Flutter Form
🎨 40+ customization options – colors, borders, padding, icons
👁️ Focus states – visual feedback when focused
🔒 Forgot password button – built-in for login forms
📏 Character counter – with customizable display
🚫 Read-only mode – for display-only fields
⌨️ Input formatters – phone, card numbers, etc
🌈 Theme-aware – respects Material theme
⚡ Zero dependencies – Flutter only

Installation

dependencies:
  custom_main_text_field: ^1.0.0

Quick Start

import 'package:custom_main_text_field/custom_main_text_field.dart';

CustomTextField(
  controller: emailController,
  hint: 'Enter email',
  title: 'Email',
  prefixIcon: Icons.email,
  validator: (v) => v?.isEmpty ?? true ? 'Required' : null,
)

Examples

1. Basic text field

CustomTextField(
  controller: nameController,
  hint: 'Enter your name',
  title: 'Full Name',
)

2. Password field

CustomTextField(
  controller: passwordController,
  hint: 'Enter password',
  title: 'Password',
  isPassword: true,
  prefixIcon: Icons.lock,
)

3. Password with "Forgot password?"

CustomTextField(
  controller: passwordController,
  hint: 'Enter password',
  title: 'Password',
  isPassword: true,
  prefixIcon: Icons.lock,
  showForgotPassword: true,
  onForgotPasswordTap: () => Navigator.push(...),
)

4. With prefix icon

CustomTextField(
  controller: emailController,
  hint: 'email@example.com',
  title: 'Email',
  prefixIcon: Icons.email,
  keyboardType: TextInputType.emailAddress,
)

5. With suffix icon

CustomTextField(
  controller: searchController,
  hint: 'Search...',
  suffixIcon: Icons.search,
  onSuffixIconTap: () => performSearch(),
)

6. Custom colors

CustomTextField(
  controller: controller,
  hint: 'Enter text',
  fillColor: Colors.blue.shade50,
  borderColor: Colors.blue.shade200,
  focusedBorderColor: Colors.blue,
  prefixIconColor: Colors.blue,
)

7. Multi-line textarea

CustomTextField(
  controller: notesController,
  hint: 'Enter notes',
  title: 'Notes',
  maxLines: 5,
  minLines: 3,
)

8. Phone number with formatter

CustomTextField(
  controller: phoneController,
  hint: '(123) 456-7890',
  title: 'Phone',
  prefixIcon: Icons.phone,
  keyboardType: TextInputType.phone,
  inputFormatters: [
    FilteringTextInputFormatter.digitsOnly,
    LengthLimitingTextInputFormatter(10),
  ],
)

9. With validation

CustomTextField(
  controller: emailController,
  hint: 'email@example.com',
  title: 'Email',
  isRequired: true,
  prefixIcon: Icons.email,
  validator: (value) {
    if (value == null || value.isEmpty) {
      return 'Email is required';
    }
    if (!value.contains('@')) {
      return 'Enter valid email';
    }
    return null;
  },
  autovalidateMode: AutovalidateMode.onUserInteraction,
)

10. Read-only field

CustomTextField(
  controller: TextEditingController(text: 'Read only value'),
  title: 'User ID',
  readOnly: true,
  fillColor: Colors.grey.shade100,
)

API Reference

Core Properties

Parameter	Type	Default	Description
`controller`	`TextEditingController`	required	Text controller
`validator`	`String? Function(String?)?`	null	Validation function
`keyboardType`	`TextInputType`	`text`	Keyboard type
`onChanged`	`ValueChanged<String>?`	null	Text change callback
`onTap`	`VoidCallback?`	null	Tap callback

Icons

Parameter	Type	Default	Description
`isPassword`	`bool`	false	Show password toggle
`prefixIcon`	`IconData?`	null	Leading icon
`suffixIcon`	`IconData?`	null	Trailing icon
`prefixIconColor`	`Color?`	null	Prefix icon color
`suffixIconColor`	`Color?`	null	Suffix icon color
`onSuffixIconTap`	`VoidCallback?`	null	Suffix tap handler
`iconSize`	`double`	20	Icon size

Text & Labels

Parameter	Type	Default	Description
`title`	`String?`	null	Label above field
`hint`	`String`	''	Placeholder text
`labelText`	`String?`	null	Floating label
`showFloatingLabel`	`bool`	false	Enable floating label
`isRequired`	`bool`	false	Show asterisk
`titleStyle`	`TextStyle?`	null	Title text style
`hintStyle`	`TextStyle?`	null	Hint text style

Styling

Parameter	Type	Default	Description
`fillColor`	`Color?`	White	Background color
`borderColor`	`Color?`	Divider	Normal border color
`focusedBorderColor`	`Color?`	Primary	Focused border color
`errorBorderColor`	`Color?`	Error	Error border color
`borderRadius`	`double`	12	Corner radius
`borderWidth`	`double`	1.5	Normal border width
`focusedBorderWidth`	`double`	2.0	Focused border width
`padding`	`EdgeInsetsGeometry?`	bottom 20	Outer padding
`contentPadding`	`EdgeInsetsGeometry?`	16 all	Inner padding

Behavior

Parameter	Type	Default	Description
`enabled`	`bool`	true	Enable/disable
`readOnly`	`bool`	false	Read-only mode
`maxLines`	`int?`	1	Max lines
`maxLength`	`int?`	null	Max characters
`showCounter`	`bool`	true	Show character count
`autovalidateMode`	`AutovalidateMode?`	null	Validation mode
`inputFormatters`	`List<TextInputFormatter>?`	null	Input formatters
`unfocusOnTapOutside`	`bool`	true	Unfocus on outside tap

Special Features

Parameter	Type	Default	Description
`showForgotPassword`	`bool`	false	Show forgot password button
`onForgotPasswordTap`	`VoidCallback?`	null	Forgot password handler
`forgotPasswordText`	`String`	'Forgot password?'	Button text

Use Cases

✅ Login forms
✅ Registration forms
✅ Profile edit screens
✅ Search bars
✅ Comment/note fields
✅ Settings forms
✅ Any text input!

License

MIT