🎉 Initial Release - Beta #

This is the first beta release of Media Picker Guard, a comprehensive Flutter package for validating media files before upload.

✨ Added #

Core Features

• File Size Validation: Set minimum and maximum file size limits with human-readable error messages
• Duration Validation: Validate video and audio duration constraints (with placeholder implementation)
• Format Validation: Restrict file extensions and MIME types with comprehensive format detection
• File Access Validation: Check file accessibility and basic corruption detection
• Custom Error Messages: Fully customizable, user-friendly error messages

Pre-built Configurations

• MediaPickerGuard.imageUploadConfig() - Optimized for image uploads (profile pictures, galleries)
• MediaPickerGuard.videoUploadConfig() - Configured for video uploads (social media, content)
• MediaPickerGuard.audioUploadConfig() - Set up for audio uploads (podcasts, music)
• MediaPickerGuard.documentUploadConfig() - Ready for document uploads (PDFs, office docs)

Validation Methods

• validateFile() - Comprehensive file validation with detailed results
• validateFiles() - Batch validation for multiple files
• isFileValid() - Quick boolean validation check for performance
• getFileInfo() - Extract detailed file information without validation

Error Handling

• Friendly Error Messages: User-readable error descriptions
• Error Context: Additional metadata for debugging and logging
• Multiple Error Support: Handle multiple validation failures simultaneously
• Custom Error Messages: Override default messages with localized versions

File Type Support

• Images: JPG, JPEG, PNG, GIF, WebP, BMP, SVG
• Videos: MP4, MOV, AVI, MKV, WMV, FLV, WebM
• Audio: MP3, WAV, AAC, OGG, FLAC, M4A
• Documents: PDF, DOC, DOCX, TXT, RTF, XLS, XLSX, PPT, PPTX

Platform Support

• ✅ Android: Full functionality
• ✅ iOS: Full functionality
• ✅ Web: Full functionality
• ✅ Desktop: Full functionality (Windows, macOS, Linux)

🏗️ Architecture #

Core Classes

• MediaPickerGuard - Main validation class with static methods
• MediaValidationConfig - Configuration class for validation rules
• MediaValidationResult - Result object with validation status and errors
• MediaValidationError - Detailed error information with context
• MediaType - Enum for different media types (Image, Video, Audio, Document, Any)
• ValidationErrorType - Enum for different error types

Validators

• SizeValidator - Handles file size validation with MB/KB formatting
• FormatValidator - Manages file extension and MIME type validation
• DurationValidator - Validates media duration (placeholder implementation)

🧪 Testing & Quality #

Test Coverage

• 26 Comprehensive Tests: Full coverage of all major functionality
• Unit Tests: Individual component testing
• Integration Tests: End-to-end validation scenarios
• Error Handling Tests: Edge cases and error conditions
• Performance Tests: Quick validation and batch processing

Code Quality

• Flutter Lints: Passes all recommended linting rules
• Type Safety: Full Dart type safety with null safety
• Documentation: Comprehensive API documentation and examples
• Clean Architecture: Well-organized, maintainable code structure

📚 Documentation & Examples #

Documentation

• Comprehensive README: Usage examples, API reference, common patterns
• API Documentation: Detailed method and class documentation
• Error Reference: Complete error type documentation with user messages

Interactive Example App

• Complete Flutter App: Fully functional example with beautiful UI
• Multiple Validation Types: Switch between different validation configurations
• Real-time Testing: Pick files and see validation results immediately
• File Information Display: Shows detailed file metadata
• Error Demonstration: Visual feedback for validation failures

Code Examples

• Quick Start: Simple usage examples for immediate implementation
• Advanced Patterns: Complex validation scenarios and error handling
• Custom Configurations: How to create custom validation rules
• Batch Processing: Multiple file validation examples

🔧 Dependencies #

Runtime Dependencies

• flutter: SDK dependency for Flutter framework
• path: ^1.9.0 - File path manipulation utilities
• mime: ^1.0.4 - MIME type detection and validation

Development Dependencies

• flutter_test: Testing framework for unit and widget tests
• flutter_lints: ^5.0.0 - Dart linting rules for code quality

📋 Known Limitations (Beta) #

• Duration Validation: Currently uses placeholder implementation based on file size estimation
  • Real duration validation requires platform-specific media libraries
  • Future versions will include proper media duration detection
• File Integrity: Basic corruption detection only
  • Advanced integrity checking planned for future releases
• Image Dimensions: Not yet supported (planned for future versions)
• Video Resolution: Not yet supported (planned for future versions)

🔮 Roadmap #

Planned features for upcoming releases:

• ❌ Real media duration detection using platform channels
• ❌ Image dimension validation (width/height constraints)
• ❌ Video resolution validation
• ❌ Audio quality/bitrate validation
• ❌ Advanced file integrity checking
• ❌ Cloud storage integration helpers
• ❌ Batch processing with progress callbacks
• ❌ Content-based validation (AI/ML integration)

📦 Package Information #

• Package Name: media_picker_guard
• Version: 0.0.1-beta.1
• Minimum SDK: Dart ^3.8.1, Flutter ">=1.17.0"
• License: MIT
• Repository: https://github.com/waqas/media_picker_guard

🤝 Contributing #

This is a beta release and we welcome feedback, bug reports, and contributions!

• Report issues on GitHub
• Submit feature requests
• Contribute code improvements
• Help improve documentation

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Note: This is a beta release intended for testing and feedback. While the core functionality is stable, the API may change based on community feedback before the 1.0.0 release.