media_compressor 1.1.0-beta.1 
media_compressor: ^1.1.0-beta.1 copied to clipboard
harikrishnancr.comA Flutter plugin for efficient image and video compression on Android, iOS, and Web.
example/lib/main.dart
import 'dart:typed_data';
import 'package:flutter/material.dart';
import 'package:image_picker/image_picker.dart';
import 'package:media_compressor/media_compressor.dart';
void main() => runApp(const MyApp());
class MyApp extends StatelessWidget {
const MyApp({super.key});
@override
Widget build(BuildContext context) => MaterialApp(
debugShowCheckedModeBanner: false,
home: const HomePage(),
);
}
class HomePage extends StatefulWidget {
const HomePage({super.key});
@override
State<HomePage> createState() => _HomePageState();
}
class _HomePageState extends State<HomePage> {
final _picker = ImagePicker();
Uint8List? _bytes;
String? _status;
Future<void> _pickAndCompress() async {
final file = await _picker.pickImage(source: ImageSource.gallery);
if (file == null) return;
setState(() => _status = 'Compressing...');
final result = await MediaCompressor.compressImage(
ImageCompressionConfig(
path: file.path,
quality: 70,
maxWidth: 1920,
maxHeight: 1080,
),
);
if (result.isSuccess) {
// Cross-platform read (file path on mobile, blob URL on web).
final out = XFile(result.path!);
final bytes = await out.readAsBytes();
if (!mounted) return;
setState(() {
_bytes = bytes;
_status = 'Done — ${(bytes.length / 1024).toStringAsFixed(1)} KB';
});
await MediaCompressor.release(result.path!);
} else {
if (!mounted) return;
setState(() => _status = 'Failed: ${result.error?.message}');
}
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: const Text('Media Compressor')),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
if (_bytes != null)
SizedBox(height: 240, child: Image.memory(_bytes!)),
if (_status != null) Padding(
padding: const EdgeInsets.all(12),
child: Text(_status!),
),
ElevatedButton(
onPressed: _pickAndCompress,
child: const Text('Pick & compress image'),
),
],
),
),
);
}
}
// // Cross-platform Media Compressor example (Web + Android + iOS + Desktop).
// //
// // Web compatibility notes:
// // - No `dart:io`. Sizes/bytes go through `XFile` (handles file paths on
// // mobile AND blob URLs on web).
// // - Image previews use `Image.memory` (platform agnostic).
// // - Video playback uses `video_player` via a conditional factory.
// // - Real progress comes from the `native_compressor/progress` EventChannel
// // (Android + Web). iOS emits no progress yet.
// import 'dart:async';
// import 'package:flutter/material.dart';
// import 'package:flutter/services.dart';
// import 'package:image_picker/image_picker.dart'; // exports XFile
// import 'package:media_compressor/media_compressor.dart';
// import 'package:media_compressor_example/video_payer_example.dart';
// void main() {
// WidgetsFlutterBinding.ensureInitialized();
// runApp(const MyApp());
// }
// class MyApp extends StatelessWidget {
// const MyApp({super.key});
// @override
// Widget build(BuildContext context) {
// return MaterialApp(
// title: 'Media Compressor Demo',
// debugShowCheckedModeBanner: false,
// theme: ThemeData(
// useMaterial3: true,
// colorScheme: ColorScheme.fromSeed(seedColor: Colors.blue),
// ),
// home: const CompressorDemo(),
// );
// }
// }
// class CompressorDemo extends StatefulWidget {
// const CompressorDemo({super.key});
// @override
// State<CompressorDemo> createState() => _CompressorDemoState();
// }
// class _CompressorDemoState extends State<CompressorDemo> {
// final ImagePicker _picker = ImagePicker();
// static const EventChannel _progressChannel =
// EventChannel('native_compressor/progress');
// StreamSubscription<dynamic>? _progressSub;
// XFile? _originalFile;
// String? _compressedPath;
// Uint8List? _originalImageBytes;
// Uint8List? _compressedImageBytes;
// int? _originalSize;
// int? _compressedSize;
// bool _isCompressing = false;
// double _progress = 0.0;
// String _selectedType = 'image';
// int _imageQuality = 80;
// VideoQuality _videoQuality = VideoQuality.medium;
// @override
// void dispose() {
// _progressSub?.cancel();
// super.dispose();
// }
// void _listenProgress() {
// _progressSub?.cancel();
// _progressSub = _progressChannel.receiveBroadcastStream().listen(
// (event) {
// if (!_isCompressing || !mounted) return;
// if (event is Map && event['progress'] != null) {
// setState(() => _progress = (event['progress'] as num).toDouble());
// }
// },
// onError: (_) {},
// );
// }
// Future<void> _pickFile() async {
// try {
// final XFile? file = _selectedType == 'image'
// ? await _picker.pickImage(source: ImageSource.gallery)
// : await _picker.pickVideo(source: ImageSource.gallery);
// if (file == null) return;
// final size = await file.length();
// Uint8List? imgBytes;
// if (_selectedType == 'image') {
// imgBytes = await file.readAsBytes();
// }
// setState(() {
// _originalFile = file;
// _originalSize = size;
// _originalImageBytes = imgBytes;
// _compressedPath = null;
// _compressedSize = null;
// _compressedImageBytes = null;
// _progress = 0.0;
// });
// if (_selectedType == 'image') {
// await _compressImage();
// } else {
// await _compressVideo();
// }
// } catch (e) {
// _showError('Failed to pick file: $e');
// }
// }
// Future<void> _compressImage() async {
// final original = _originalFile;
// if (original == null) return;
// setState(() {
// _isCompressing = true;
// _progress = 0.0;
// });
// _listenProgress();
// try {
// final result = await MediaCompressor.compressImage(
// ImageCompressionConfig(
// path: original.path,
// quality: _imageQuality,
// maxWidth: 1920,
// maxHeight: 1080,
// ),
// );
// if (result.isSuccess) {
// final out = XFile(result.path!);
// final bytes = await out.readAsBytes();
// if (!mounted) return;
// setState(() {
// _compressedPath = result.path;
// _compressedImageBytes = bytes;
// _compressedSize = bytes.length;
// _progress = 1.0;
// _isCompressing = false;
// });
// } else {
// throw Exception(result.error?.message ?? 'Compression failed');
// }
// } catch (e) {
// if (mounted) setState(() => _isCompressing = false);
// _showError('Compression failed: $e');
// }
// }
// Future<void> _compressVideo() async {
// final original = _originalFile;
// if (original == null) return;
// setState(() {
// _isCompressing = true;
// _progress = 0.0;
// });
// _listenProgress();
// try {
// final result = await MediaCompressor.compressVideo(
// VideoCompressionConfig(
// path: original.path,
// quality: _videoQuality,
// ),
// );
// if (result.isSuccess) {
// final out = XFile(result.path!);
// final compressedSize = await out.length();
// if (!mounted) return;
// setState(() {
// _compressedPath = result.path;
// _compressedSize = compressedSize;
// _progress = 1.0;
// _isCompressing = false;
// });
// if (mounted) {
// Navigator.push(
// context,
// MaterialPageRoute(
// builder: (_) => VideoCompareScreen(
// originalPath: original.path,
// compressedPath: result.path!,
// originalSize: _originalSize ?? 0,
// compressedSize: compressedSize,
// ),
// ),
// );
// }
// } else {
// throw Exception(result.error?.message ?? 'Compression failed');
// }
// } catch (e) {
// if (mounted) setState(() => _isCompressing = false);
// _showError('Compression failed: $e');
// }
// }
// String _formatBytes(int bytes) {
// if (bytes < 1024) return '$bytes B';
// if (bytes < 1024 * 1024) return '${(bytes / 1024).toStringAsFixed(1)} KB';
// return '${(bytes / (1024 * 1024)).toStringAsFixed(2)} MB';
// }
// void _showError(String message) {
// if (!mounted) return;
// ScaffoldMessenger.of(context).showSnackBar(
// SnackBar(content: Text(message), backgroundColor: Colors.red),
// );
// }
// void _resetState() {
// setState(() {
// _originalFile = null;
// _compressedPath = null;
// _originalImageBytes = null;
// _compressedImageBytes = null;
// _originalSize = null;
// _compressedSize = null;
// _progress = 0.0;
// });
// }
// @override
// Widget build(BuildContext context) {
// final reduction = (_originalSize != null &&
// _compressedSize != null &&
// _originalSize! > 0)
// ? ((1 - (_compressedSize! / _originalSize!)) * 100).toInt()
// : null;
// return Scaffold(
// appBar: AppBar(title: const Text('Media Compressor'), centerTitle: true),
// body: SingleChildScrollView(
// padding: const EdgeInsets.all(20),
// child: Column(
// crossAxisAlignment: CrossAxisAlignment.stretch,
// children: [
// Row(
// children: [
// Expanded(
// child: ChoiceChip(
// label: const Text('Image'),
// selected: _selectedType == 'image',
// onSelected: _isCompressing
// ? null
// : (_) {
// setState(() => _selectedType = 'image');
// _resetState();
// },
// ),
// ),
// const SizedBox(width: 12),
// Expanded(
// child: ChoiceChip(
// label: const Text('Video'),
// selected: _selectedType == 'video',
// onSelected: _isCompressing
// ? null
// : (_) {
// setState(() => _selectedType = 'video');
// _resetState();
// },
// ),
// ),
// ],
// ),
// const SizedBox(height: 20),
// ElevatedButton.icon(
// onPressed: _isCompressing ? null : _pickFile,
// icon: Icon(
// _selectedType == 'image' ? Icons.image : Icons.video_library),
// label: Text(
// 'Select ${_selectedType == 'image' ? 'Image' : 'Video'}'),
// style: ElevatedButton.styleFrom(padding: const EdgeInsets.all(16)),
// ),
// const SizedBox(height: 20),
// if (_selectedType == 'image') ...[
// const Text('Image Quality',
// style: TextStyle(fontWeight: FontWeight.w500)),
// Row(
// children: [
// const Text('Low', style: TextStyle(fontSize: 12)),
// Expanded(
// child: Slider(
// value: _imageQuality.toDouble(),
// min: 10,
// max: 100,
// divisions: 18,
// label: '$_imageQuality%',
// onChanged: _isCompressing
// ? null
// : (v) => setState(() => _imageQuality = v.toInt()),
// onChangeEnd: (_) {
// if (_originalFile != null) _compressImage();
// },
// ),
// ),
// const Text('High', style: TextStyle(fontSize: 12)),
// ],
// ),
// ] else ...[
// const Text('Video Quality',
// style: TextStyle(fontWeight: FontWeight.w500)),
// const SizedBox(height: 8),
// SegmentedButton<VideoQuality>(
// segments: const [
// ButtonSegment(value: VideoQuality.low, label: Text('Low')),
// ButtonSegment(
// value: VideoQuality.medium, label: Text('Medium')),
// ButtonSegment(value: VideoQuality.high, label: Text('High')),
// ],
// selected: {_videoQuality},
// onSelectionChanged: _isCompressing
// ? null
// : (sel) {
// setState(() => _videoQuality = sel.first);
// if (_originalFile != null) _compressVideo();
// },
// ),
// ],
// if (_isCompressing) ...[
// const SizedBox(height: 24),
// const Text('Compressing...',
// textAlign: TextAlign.center,
// style:
// TextStyle(fontSize: 16, fontWeight: FontWeight.w500)),
// const SizedBox(height: 12),
// LinearProgressIndicator(
// value: _progress == 0 ? null : _progress,
// minHeight: 8,
// borderRadius: BorderRadius.circular(4),
// ),
// const SizedBox(height: 8),
// Text('${(_progress * 100).toInt()}%',
// textAlign: TextAlign.center),
// ],
// if (_originalSize != null) ...[
// const SizedBox(height: 24),
// Row(
// children: [
// Expanded(
// child: _SizeCard(
// label: 'Before',
// size: _formatBytes(_originalSize!),
// color: Colors.grey),
// ),
// const SizedBox(width: 12),
// Expanded(
// child: _SizeCard(
// label: 'After',
// size: _compressedSize != null
// ? _formatBytes(_compressedSize!)
// : '...',
// color: Colors.green,
// ),
// ),
// ],
// ),
// if (reduction != null) ...[
// const SizedBox(height: 8),
// Text('$reduction% smaller',
// textAlign: TextAlign.center,
// style: const TextStyle(
// fontWeight: FontWeight.w600, color: Colors.green)),
// ],
// ],
// if (_selectedType == 'image' && _originalImageBytes != null) ...[
// const SizedBox(height: 24),
// Row(
// children: [
// Expanded(
// child: _ImagePreview(
// label: 'Original',
// bytes: _originalImageBytes,
// isLoading: false),
// ),
// const SizedBox(width: 12),
// Expanded(
// child: _ImagePreview(
// label: 'Compressed',
// bytes: _compressedImageBytes,
// isLoading: _isCompressing),
// ),
// ],
// ),
// ],
// ],
// ),
// ),
// );
// }
// }
// class _SizeCard extends StatelessWidget {
// const _SizeCard(
// {required this.label, required this.size, required this.color});
// final String label;
// final String size;
// final Color color;
// @override
// Widget build(BuildContext context) {
// return Container(
// padding: const EdgeInsets.all(16),
// decoration: BoxDecoration(
// color: color.withValues(alpha: 0.12),
// borderRadius: BorderRadius.circular(12),
// ),
// child: Column(
// children: [
// Text(label, style: const TextStyle(fontSize: 14)),
// const SizedBox(height: 4),
// Text(size,
// style:
// const TextStyle(fontSize: 20, fontWeight: FontWeight.bold)),
// ],
// ),
// );
// }
// }
// class _ImagePreview extends StatelessWidget {
// const _ImagePreview(
// {required this.label, required this.bytes, required this.isLoading});
// final String label;
// final Uint8List? bytes;
// final bool isLoading;
// @override
// Widget build(BuildContext context) {
// return Column(
// children: [
// Text(label, style: const TextStyle(fontWeight: FontWeight.w500)),
// const SizedBox(height: 8),
// AspectRatio(
// aspectRatio: 1,
// child: ClipRRect(
// borderRadius: BorderRadius.circular(8),
// child: bytes != null
// ? Image.memory(bytes!, fit: BoxFit.cover)
// : Container(
// color: Colors.grey.shade200,
// child: isLoading
// ? const Center(child: CircularProgressIndicator())
// : null,
// ),
// ),
// ),
// ],
// );
// }
// }Metadata
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A Flutter plugin for efficient image and video compression on Android, iOS, and Web.
Homepage
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License
unknown (license)
Dependencies
flutter, flutter_web_plugins, plugin_platform_interface, web
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