fix_flutter_deprecations 0.1.0

A powerful and extensible Dart CLI tool that automatically fixes Flutter deprecations in your codebase

example/example.dart

// ignore_for_file: avoid_print

/// Example Flutter file with deprecated APIs that need fixing
void main() {
  print('Example file showing deprecated Flutter APIs:');
  print('');
  print('Before running fix_deprecations:');
  print('----------------------------------------');
  
  // Show the original deprecated code
  final deprecatedCode = '''
import 'package:flutter/material.dart';

class MyWidget extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    // Deprecated: withOpacity
    final color1 = Colors.blue.withOpacity(0.5);
    final color2 = Theme.of(context).primaryColor.withOpacity(0.8);
    
    // Deprecated: surfaceVariant
    final surfaceColor = Theme.of(context).colorScheme.surfaceVariant;
    
    // Deprecated: onSurfaceVariant  
    final textColor = Theme.of(context).colorScheme.onSurfaceVariant;
    
    return Container(
      color: color1,
      child: Text(
        'Hello World',
        style: TextStyle(color: textColor),
      ),
    );
  }
}
''';

  print(deprecatedCode);
  print('');
  print('After running fix_deprecations:');
  print('----------------------------------------');
  
  // Show the fixed code
  final fixedCode = '''
import 'package:flutter/material.dart';

class MyWidget extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    // Fixed: withOpacity → withValues
    final color1 = Colors.blue.withValues(alpha: 0.5);
    final color2 = Theme.of(context).primaryColor.withValues(alpha: 0.8);
    
    // Fixed: surfaceVariant → surfaceContainerHighest
    final surfaceColor = Theme.of(context).colorScheme.surfaceContainerHighest;
    
    // Fixed: onSurfaceVariant → onSurface
    final textColor = Theme.of(context).colorScheme.onSurface;
    
    return Container(
      color: color1,
      child: Text(
        'Hello World',
        style: TextStyle(color: textColor),
      ),
    );
  }
}
''';

  print(fixedCode);
  print('');
  print('To fix these deprecations in your project, run:');
  print('  fix_deprecations');
  print('');
  print('Or preview changes first with:');
  print('  fix_deprecations --dry-run');
}