createLegacyImageList function

List<Map<String, dynamic>> createLegacyImageList(String fileNamePrefix)

Create the image list for the Contents.json file for Xcode versions below Xcode 14

Implementation

List<Map<String, dynamic>> createLegacyImageList(String fileNamePrefix) {
  const List<Map<String, dynamic>> imageConfigurations = [
    {
      'size': '20x20',
      'idiom': 'iphone',
      'scales': ['2x', '3x'],
    },
    {
      'size': '29x29',
      'idiom': 'iphone',
      'scales': ['1x', '2x', '3x'],
    },
    {
      'size': '40x40',
      'idiom': 'iphone',
      'scales': ['2x', '3x'],
    },
    {
      'size': '57x57',
      'idiom': 'iphone',
      'scales': ['1x', '2x'],
    },
    {
      'size': '60x60',
      'idiom': 'iphone',
      'scales': ['2x', '3x'],
    },
    {
      'size': '20x20',
      'idiom': 'ipad',
      'scales': ['1x', '2x'],
    },
    {
      'size': '29x29',
      'idiom': 'ipad',
      'scales': ['1x', '2x'],
    },
    {
      'size': '40x40',
      'idiom': 'ipad',
      'scales': ['1x', '2x'],
    },
    {
      'size': '50x50',
      'idiom': 'ipad',
      'scales': ['1x', '2x'],
    },
    {
      'size': '72x72',
      'idiom': 'ipad',
      'scales': ['1x', '2x'],
    },
    {
      'size': '76x76',
      'idiom': 'ipad',
      'scales': ['1x', '2x'],
    },
    {
      'size': '83.5x83.5',
      'idiom': 'ipad',
      'scales': ['2x'],
    },
    {
      'size': '1024x1024',
      'idiom': 'ios-marketing',
      'scales': ['1x'],
    },
  ];

  final List<Map<String, dynamic>> imageList = <Map<String, dynamic>>[];

  for (final config in imageConfigurations) {
    final size = config['size']!;
    final idiom = config['idiom']!;
    final List<String> scales = config['scales'];

    for (final scale in scales) {
      final filename = '$fileNamePrefix-$size@$scale.png';
      imageList.add(
        ContentsImageObject(
          size: size,
          idiom: idiom,
          filename: filename,
          scale: scale,
        ).toJson(),
      );
    }
  }

  return imageList;
}