tools_box 0.1.3

A comprehensive Flutter utility toolkit providing string manipulation, date formatting, widget extensions, form validation, and platform detection utilities. Includes convenient extension methods for [...]

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

0.1.3 - 2026-05-26

Added - New Features

ListUtils (List Operation Utilities)

• firstOrDefault / lastOrDefault - Safe element access with defaults
• unique - Remove duplicates while preserving order
• chunked(int size) - Split list into chunks of specified size
• groupBy<K>(keyFn) - Group elements by key function
• skipFirst / skipLast - Skip elements from start or end
• getOrNull(index) - Safe index access with bounds checking
• findFirst(predicate) / findLast(predicate) - Find elements matching predicate
• swap(i, j) - Swap two elements in place
• cyclic(index) - Cyclic/wrapping element access
• Numeric extensions: sum, average, minValue, maxValue, median

NumUtils (Number Formatting & Operations)

• formatWithCommas - Format number with thousand separators
• toCurrency({symbol}) - Format as currency string
• toPercentage({decimalPlaces}) - Convert to percentage string
• formatNumber({decimalPlaces}) - Format with decimal places
• clampRange(min, max) - Clamp value within range
• isBetween(min, max) / isWithin(min, max) - Range checking
• toDurationString() - Convert seconds to human-readable duration
• toFileSize() - Convert bytes to human-readable file size
• roundTo(decimalPlaces) - Round to specified decimal places
• isPositive / isNegative / isZero / isNonZero - Sign checks
• isEven / isOdd - Parity checks
• differenceFrom(other) - Absolute difference calculation
• atMost(maxValue) / atLeast(minValue) - Value capping
• times<T>(callback) - Repeat callback n times

ColorUtils (Color Conversion & Manipulation)

• fromHex(hexString) - Parse hex string to Color
• toHex({includeAlpha}) - Convert Color to hex string
• lighten(amount) / darken(amount) - Adjust color brightness
• mix(color1, color2, ratio) - Blend two colors together
• withOpacity(color, opacity) - Adjust alpha/opacity
• getRed / getGreen / getBlue / getAlpha - Extract color components
• isDark(color) / isLight(color) - Luminance-based detection
• contrastingText(backgroundColor) - Get readable text color
• random({minAlpha, maxAlpha}) - Generate random colors
• toHSL(color) / fromHSL(h, s, l) - HSL color space conversions
• Color extension methods: toHex(), lighten(), darken(), mixWith(), etc.

Documentation

• Updated README.md with new utility APIs (English)
• Updated README.zh-CN.md with new utility APIs (Chinese)
• Added comprehensive examples for all new methods

Testing

• Test coverage expanded for new utilities

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0.1.2 - 2026-05-25

Added - New Features

PlatformUtils (Platform Detection Utilities)

• isWeb - Check if running on Web platform
• isAndroid - Check if running on Android platform
• isIOS - Check if running on iOS platform
• isMacOS - Check if running on macOS platform
• isWindows - Check if running on Windows platform
• isLinux - Check if running on Linux platform
• isFuchsia - Check if running on Fuchsia platform
• isMobile - Check if mobile device (Android or iOS)
• isDesktop - Check if desktop (macOS, Windows or Linux)
• platformName - Get platform name (English)
• platformNameCN - Get platform name (Chinese)
• operatingSystem - Get OS identifier
• operatingSystemVersion - Get OS version
• currentLocale - Get current system locale
• localHostname - Get local hostname
• numberOfProcessors - Get CPU core count
• pathSeparator - Get path separator
• isRelease / isDebug - Runtime mode detection
• supportsFileSystem() - File system support check
• supportsNetworkSockets() - Network socket support check
• supportsProcessInfo() - Process info support check
• runOnPlatform({...}) - Execute callbacks per platform (no return value)
• runOnPlatformWithResult<T>({...}) - Execute callbacks per platform (with return value)

Documentation

• Updated README.md with PlatformUtils API documentation
• Updated Features list with platform detection features

Testing

• Added PlatformUtils test cases (6 tests)
• Coverage for platform detection, name retrieval, and conditional execution

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0.1.1 - 2026-05-23

Changed - Improvements

Project Structure Optimization

• Renamed example_app directory to example (follows Flutter package conventions)
• Added .pubignore file (optimized pub.dev publishing config)
• Updated .gitignore path references
• Updated all documentation path references (README.md, CODE_WIKI.md)

Documentation Improvements

• Reorganized README.md with clear API list format
• Each module shows source file link and Demo link
• Used code blocks for method names and descriptions
• Improved readability and search efficiency
• Updated CODE_WIKI.md directory references
• Updated CHANGELOG.md example app name

Package Publishing Configuration

• Resolved Pub validation warning: "checked-in files are ignored by .gitignore"
• Added .pubignore to exclude example directory (should not publish to pub.dev)
• Optimized package structure following Flutter package best practices

Dependencies

• No new dependencies added

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0.1.0 - 2026-05-23

Added - New Features

StringUtils (String Utilities)

• isEmail - Email format validation
• isPhoneNumber - Chinese phone number validation
• capitalize - Capitalize first letter
• capitalizeAllOf - Capitalize each word's first letter
• isNumeric - Check if numeric string
• reverse - Reverse string
• nullIfEmpty - Convert empty string to null
• truncate - String truncation (custom suffix support)
• removeWhitespace - Remove all whitespace characters
• isURL - URL format validation

DateUtils (Date/Time Utilities)

• formatDate - Date formatting (custom pattern support)
• formatDateTime - Date/time formatting
• timeAgo - Relative time display (Chinese, e.g., 5 minutes ago, 2 hours ago)
• isToday - Check if today
• isYesterday - Check if yesterday
• startOfDay - Get start of day
• endOfDay - Get end of day
• daysInRange - Generate date list in range

WidgetExtensions (Widget Extension Methods)

• paddingAll - Equal padding on all sides
• paddingSymmetric - Horizontal/vertical padding
• only - Custom direction padding
• center - Center alignment
• align - Custom alignment
• expand - Expanded wrapper
• flexible - Flexible wrapper
• positioned - Absolute positioning
• onTap - Add tap event handler
• sizedBox - Set dimensions
• clipRRect - Rounded corner clipping
• decorated - Add decoration (background, border, etc.)
• opacity - Set transparency
• safeArea - Safe area wrapper
• hero - Hero animation tag
• tooltip - Tooltip message
• visible - Control visibility

BuildContextExtensions (BuildContext Extensions)

• screenWidth - Get screen width
• screenHeight - Get screen height
• theme - Get ThemeData
• textTheme - Get TextTheme
• colorScheme - Get ColorScheme
• isKeyboardVisible - Check keyboard visibility
• hideKeyboard - Hide keyboard
• showSnackBar - Show SnackBar
• push - Page navigation (navigate)
• pop - Page return (go back)
• isDarkMode - Check dark mode

ValidationUtils (Form Validation Utilities)

• isValidEmail - Email validity validation
• isValidPhone - Phone number validity validation
• isValidPassword - Password validity validation (min length support)
• isValidURL - URL validity validation
• isValidIDCard - ID card number validation
• isChinese - Chinese character detection
• containsOnlyNumbers - Pure number detection
• containsOnlyLetters - Pure letter detection
• containsOnlyLettersAndNumbers - Letter and number detection
• validateEmail - Form email validation (error message or null)
• validatePhone - Form phone number validation
• validatePassword - Form password validation
• validateRequired - Required field validation

Dependencies

• Added intl: ^0.19.0 || ^0.20.0 for date formatting

Testing

• Added 11 unit test cases
• Coverage of StringUtils, DateUtils, ValidationUtils core functionality
• All tests passed

Documentation

• Complete README.md documentation
• Detailed usage examples and API documentation
• Development guide and contribution guide
• Created example application (example)

Project Setup

• Updated pubspec.yaml configuration
• Set version to 0.1.0
• Added repository URL and issue tracker links
• Configured Dart SDK version requirement ^3.11.3

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[Unreleased]

Planned Features

• ❌ ListUtils - List operation utilities
• ❌ NumUtils - Number processing utilities
• ❌ ColorUtils - Color conversion utilities
• ❌ CacheUtils - Cache management utilities
• ❌ SharedPreferences utility wrapper
• ❌ Network request utility wrapper
• ❌ More Widget extension methods
• ❌ Internationalization support (i18n)

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Version Guide

Version Number Rules

• Major (X.0.0): Incompatible API changes
• Minor (0.X.0): Backward-compatible new features
• Patch (0.0.X): Backward-compatible bug fixes

Update Type Labels

• Added: New features
• Changed: Changes to existing features
• Deprecated: Features to be removed soon
• Removed: Removed features
• Fixed: Bug fixes
• Security: Security fixes

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Release History

Version	Date	Description
0.1.3	2026-05-26	Added ListUtils, NumUtils, ColorUtils utilities
0.1.2	2026-05-25	Added PlatformUtils platform detection utilities
0.1.1	2026-05-23	Project structure optimization, documentation improvements, package publishing configuration optimization
0.1.0	2026-05-23	Initial release with basic utility collection