proper_multiselect_search_dropdown

A highly customizable dropdown package for Flutter with both multi-select and single-select options, featuring optional search functionality.

✨ Features

✅ Multi-select & Single-select - Two widgets for different use cases
🔍 Optional search functionality - Enable/disable with enableSearch parameter
🎯 Real-time search with text highlighting
🎨 Highly customizable - colors, styles, icons, layouts
📱 Material Design compliant
⌨️ Keyboard-aware - automatically adjusts when keyboard appears
🏷️ Title & Subtitle support - flexible single or dual value items
🔄 Two layout modes - inline or two-line subtitle display
💪 Type-safe and null-safe
🚀 Easy to use with sensible defaults

🚀 Installation

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

dependencies:
  proper_multiselect_search_dropdown: ^1.0.3

Then run:

flutter pub get

📖 Usage

Import

import 'package:proper_multiselect_search_dropdown/proper_multiselect_search_dropdown.dart';

Basic Multi-Select (With Search)

ProperMultiSelectDropdown(
  items: const [
    ['CAR001', '\$ 25,000'],
    ['TRUCK002', '\$ 45,000'],
    ['BIKE003', '\$ 8,000'],
  ],
  hintText: 'Select Vehicles',
  enableSearch: true, // Search enabled (default)
  onSelectionChanged: (selectedItems) {
    print('Selected: $selectedItems');
  },
)

Multi-Select WITHOUT Search

ProperMultiSelectDropdown(
  items: const [
    ['Option A'],
    ['Option B'],
    ['Option C'],
  ],
  hintText: 'Select Options',
  enableSearch: false, // Disable search
  selectedItemText: '{count} selected',
  onSelectionChanged: (selectedItems) {
    print('Selected: $selectedItems');
  },
)

Customized Multi-Select

ProperMultiSelectDropdown(
  items: const [
    ['Diamond', '\$ 99/mo'],
    ['Gold', '\$ 49/mo'],
    ['Silver', '\$ 29/mo'],
  ],
  hintText: 'Choose Plans',
  enableSearch: true,
  selectedItemText: '{count} plan(s) selected',
  
  // Text Styles
  titleTextStyle: const TextStyle(fontSize: 16, fontWeight: FontWeight.bold),
  subtitleTextStyle: const TextStyle(fontSize: 14, color: Colors. green),
  highlightedTitleTextStyle: TextStyle(backgroundColor: Colors.yellow[200]),
  
  // Colors
  backgroundColor: Colors.blue[50],
  borderColor: Colors. blue,
  checkboxActiveColor: Colors.orange,
  
  // Icons
  searchIcon: Icons.search_rounded,
  clearIcon: Icons. close_rounded,
  iconSize: 28,
  iconColor: Colors. blue,
  
  // Checkbox Position
  checkboxPosition: ListTileControlAffinity.trailing, // Right side
  
  // Layout
  showSubtitleBelow: true,
  titleSubtitleSeparator: ' | ',
  dropdownBorderRadius: 12,
  dropdownElevation: 8,
  maxHeight: 300,
  
  onSelectionChanged: (selectedItems) {
    print('Selected: $selectedItems');
  },
)

Basic Single-Select (With Search)

ProperSingleSelectDropdown(
  items: const [
    ['CAR001', '\$ 25,000'],
    ['TRUCK002', '\$ 45,000'],
    ['BIKE003', '\$ 8,000'],
  ],
  hintText: 'Select a Vehicle',
  enableSearch: true, // Search enabled (default)
  onSelectionChanged: (selectedItem) {
    if (selectedItem != null) {
      print('Selected: ${selectedItem[0]} - ${selectedItem[1]}');
    } else {
      print('Selection cleared');
    }
  },
)

Single-Select WITHOUT Search

ProperSingleSelectDropdown(
  items: const [
    ['Small'],
    ['Medium'],
    ['Large'],
    ['Extra Large'],
  ],
  hintText: 'Select Size',
  enableSearch: false, // Disable search
  onSelectionChanged: (selectedItem) {
    print('Selected: $selectedItem');
  },
)

Customized Single-Select

ProperSingleSelectDropdown(
  items: const [
    ['Premium Plan', '\$ 99/mo'],
    ['Standard Plan', '\$ 49/mo'],
    ['Basic Plan', '\$ 19/mo'],
  ],
  hintText: 'Choose your plan',
  enableSearch: true,
  autoCloseOnSelect: true, // Auto-close after selection
  showClearButton: true, // Show clear button
  
  // Text Styles
  titleTextStyle: const TextStyle(fontSize: 16, fontWeight: FontWeight.bold),
  subtitleTextStyle: const TextStyle(fontSize: 14, color: Colors. green),
  
  // Layout
  showSubtitleBelow: true,
  titleSubtitleSeparator: ' - ',
  
  onSelectionChanged: (selectedItem) {
    print('Selected: $selectedItem');
  },
)

🎨 Customization Parameters

Common Parameters (Both Widgets)

Required

Parameter	Type	Description
`items`	`List<List<String>>`	List of items. Each item is `[title]` or `[title, subtitle]`

Selection & Display

Parameter	Type	Default	Description
`hintText`	`String`	`'Select Item(s)'`	Hint text when no items selected
`enableSearch`	`bool`	`true`	Enable/disable search functionality
`onSelectionChanged`	`Function?`	`null`	Callback when selection changes

Title & Subtitle Styling

Parameter	Type	Default	Description
`titleTextStyle`	`TextStyle?`	Default	Style for item titles
`subtitleTextStyle`	`TextStyle?`	Default	Style for item subtitles
`highlightedTitleTextStyle`	`TextStyle?`	Yellow highlight	Style for highlighted title (when search enabled)
`highlightedSubtitleTextStyle`	`TextStyle?`	Yellow highlight	Style for highlighted subtitle (when search enabled)
`showSubtitleBelow`	`bool`	`false`	Show subtitle below title (two-line)
`titleSubtitleSeparator`	`String`	`' - '`	Separator between title and subtitle

Button Styling

Parameter	Type	Default	Description
`hintTextStyle`	`TextStyle?`	Grey	Style for hint text
`selectedItemTextStyle`	`TextStyle?`	Black	Style for selected text
`backgroundColor`	`Color?`	White	Button background color
`borderColor`	`Color?`	Grey	Button border color
`dropdownBorderRadius`	`double`	`8.0`	Border radius

Icons

Parameter	Type	Default	Description
`searchIcon`	`IconData?`	`Icons.search`	Search icon
`clearIcon`	`IconData?`	`Icons.clear`	Clear icon
`arrowDownIcon`	`IconData?`	`Icons.arrow_drop_down`	Dropdown arrow (closed)
`arrowUpIcon`	`IconData?`	`Icons.arrow_drop_up`	Dropdown arrow (open)
`iconSize`	`double`	`24`	Size of icons
`iconColor`	`Color?`	Grey	Color of icons

Search Box (Only when `enableSearch: true`)

Parameter	Type	Default	Description
`searchBoxDecoration`	`InputDecoration?`	Default	Custom search box decoration
`searchBoxTextStyle`	`TextStyle?`	Default	Search text style
`searchBoxBackgroundColor`	`Color?`	Light grey	Search box background
`searchBoxBorderRadius`	`double`	`8.0`	Search box border radius
`searchBoxFocusedBorderColor`	`Color?`	Blue	Border color when focused
`searchBoxEnabledBorderColor`	`Color?`	Grey	Border color when not focused

Parameter	Type	Default	Description
`dropdownElevation`	`double`	`4.0`	Dropdown shadow elevation
`maxHeight`	`double`	`250`	Maximum dropdown height

Multi-Select Specific Parameters

Parameter	Type	Default	Description
`selectedItemText`	`String?`	`null`	Custom text for selection. Use `{count}` placeholder
`checkboxPosition`	`ListTileControlAffinity`	`leading`	Checkbox position (left/right)
`checkboxActiveColor`	`Color?`	Blue	Checkbox color when selected
`checkboxCheckColor`	`Color?`	White	Checkmark color

Example:

selectedItemText: '{count} vehicles selected'

Single-Select Specific Parameters

Parameter	Type	Default	Description
`autoCloseOnSelect`	`bool`	`true`	Auto-close dropdown after selection
`showClearButton`	`bool`	`true`	Show clear button when item is selected

📝 Item Format

Items can be provided in two formats:

Single Value (Title Only):

items: [
  ['Item 1'],
  ['Item 2'],
  ['Item 3'],
]

Dual Value (Title + Subtitle):

items: [
  ['Item 1', 'Subtitle 1'],
  ['Item 2', 'Subtitle 2'],
  ['Item 3', 'Subtitle 3'],
]

🔧 Advanced Features

🔍 Optional Search Functionality

Control search with the enableSearch parameter:

With Search (default):

ProperSingleSelectDropdown(
  items: [... ],
  enableSearch: true, // Shows search box, enables filtering & highlighting
)

Without Search:

ProperSingleSelectDropdown(
  items: [... ],
  enableSearch: false, // Simple scrollable list, no search box
)

When enableSearch: true:

✅ Search box appears
✅ Real-time filtering
✅ Text highlighting in results
✅ Results count display
✅ Auto-focus on search field

When enableSearch: false:

❌ No search box
❌ No filtering
❌ No text highlighting
✅ Simple dropdown list
✅ Better performance for small lists

Smart Search (When Enabled)

Searches both title and subtitle
Highlights matching text
Sorts results: exact matches → starts-with → contains

Keyboard Handling

Automatically adjusts height when keyboard appears
Prevents overflow errors
Maintains usability in all scenarios

Selection Management

Multi-Select:

Select multiple items with checkboxes
Clear all selections with one tap
Custom selection count text with {count} placeholder

Single-Select:

Select one item at a time
Auto-close on selection (optional)
Clear button (optional)
Visual checkmark for selected item

📊 Comparison Table

Feature	Multi-Select	Single-Select
Multiple selections	✅	❌
Checkboxes	✅	❌
Single selection	❌	✅
Selection checkmark	❌	✅
Auto-close on select	❌	✅ (optional)
Search functionality	✅ (optional)	✅ (optional)
Clear button	✅	✅ (optional)
Custom selection text	✅ (`{count}`)	❌

💡 Use Cases

Selecting multiple products
Choosing multiple tags/categories
Filtering with multiple criteria
Multi-user selection
Multi-option preferences

Country/State/City selection
Gender selection
Payment method selection
Language preference
Single category selection

🤝 Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

Fork the repository
Create your feature branch (git checkout -b feature/AmazingFeature)
Commit your changes (git commit -m 'Add some AmazingFeature')
Push to the branch (git push origin feature/AmazingFeature)
Open a Pull Request

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

👨‍💻 Author

CHARLESJESU

GitHub: @CHARLESJESU

🐛 Issues

If you encounter any issues, please file them on GitHub Issues.

⭐ Support

If you like this package, please:

Give it a ⭐ on GitHub
Like it 👍 on pub.dev
Share it with your Flutter developer friends!

📋 Changelog

See CHANGELOG.md for detailed version history.

🎯 Roadmap

Add animation options
Support for custom widgets in list items
Grouping support
Select all / Deselect all for multi-select
Async data loading support
Pagination support for large lists

Made with ❤️ for the Flutter community

proper_multiselect_search_dropdown

✨ Features

🚀 Installation

📖 Usage

Import

Basic Multi-Select (With Search)

Multi-Select WITHOUT Search

Customized Multi-Select

Basic Single-Select (With Search)

Single-Select WITHOUT Search

Customized Single-Select

🎨 Customization Parameters

Common Parameters (Both Widgets)

Required

Selection & Display

Title & Subtitle Styling

Button Styling

Icons

Multi-Select Specific Parameters

Single-Select Specific Parameters

📝 Item Format

🔧 Advanced Features

🔍 Optional Search Functionality

Smart Search (When Enabled)

Keyboard Handling

Selection Management

📊 Comparison Table

💡 Use Cases

🤝 Contributing

📄 License

👨‍💻 Author

🐛 Issues

⭐ Support

📋 Changelog

🎯 Roadmap

Libraries

proper_multiselect_search_dropdown package

proper_multiselect_search_dropdown

✨ Features

🚀 Installation

📖 Usage

Import

🔢 Multi-Select Dropdown

Basic Multi-Select (With Search)

Multi-Select WITHOUT Search

Customized Multi-Select

1️⃣ Single-Select Dropdown

Basic Single-Select (With Search)

Single-Select WITHOUT Search

Customized Single-Select

🎨 Customization Parameters

Common Parameters (Both Widgets)

Required

Selection & Display

Title & Subtitle Styling

Button Styling

Icons

Search Box (Only when enableSearch: true)

Dropdown

Multi-Select Specific Parameters

Single-Select Specific Parameters

📝 Item Format

🔧 Advanced Features

🔍 Optional Search Functionality

Smart Search (When Enabled)

Keyboard Handling

Selection Management

📊 Comparison Table

💡 Use Cases

Multi-Select Dropdown

Single-Select Dropdown

🤝 Contributing

📄 License

👨‍💻 Author

🐛 Issues

⭐ Support

📋 Changelog

🎯 Roadmap

Libraries

proper_multiselect_search_dropdown package

Search Box (Only when `enableSearch: true`)