createImageList function

List<Map<String, dynamic>> createImageList(String fileNamePrefix, String? darkFileNamePrefix, String? tintedFileNamePrefix)

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

Implementation

List<Map<String, dynamic>> createImageList(
  String fileNamePrefix,
  String? darkFileNamePrefix,
  String? tintedFileNamePrefix,
) {
  const List<Map<String, dynamic>> imageConfigurations = [
    {
      'size': '20x20',
      'idiom': 'universal',
      'platform': 'ios',
      'scales': ['2x', '3x'],
    },
    {
      'size': '29x29',
      'idiom': 'universal',
      'platform': 'ios',
      'scales': ['2x', '3x'],
    },
    {
      'size': '38x38',
      'idiom': 'universal',
      'platform': 'ios',
      'scales': ['2x', '3x'],
    },
    {
      'size': '40x40',
      'idiom': 'universal',
      'platform': 'ios',
      'scales': ['2x', '3x'],
    },
    {
      'size': '60x60',
      'idiom': 'universal',
      'platform': 'ios',
      'scales': ['2x', '3x'],
    },
    {
      'size': '64x64',
      'idiom': 'universal',
      'platform': 'ios',
      'scales': ['2x', '3x'],
    },
    {
      'size': '68x68',
      'idiom': 'universal',
      'platform': 'ios',
      'scales': ['2x'],
    },
    {
      'size': '76x76',
      'idiom': 'universal',
      'platform': 'ios',
      'scales': ['2x'],
    },
    {
      'size': '83.5x83.5',
      'idiom': 'universal',
      'platform': 'ios',
      'scales': ['2x'],
    },
    {
      'size': '1024x1024',
      'idiom': 'universal',
      'platform': 'ios',
      'scales': ['1x'],
    },
    {
      '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 platform = config['platform'];
    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,
          platform: platform,
          scale: scale,
        ).toJson(),
      );
    }
  }

  // Prevent ios-marketing icon from being tinted or dark

  if (darkFileNamePrefix != null) {
    for (final config
        in imageConfigurations.where((e) => e['idiom'] == 'universal')) {
      final size = config['size']!;
      final idiom = config['idiom']!;
      final platform = config['platform'];
      final List<String> scales = config['scales'];

      for (final scale in scales) {
        final filename = '$darkFileNamePrefix-$size@$scale.png';
        imageList.add(
          ContentsImageObject(
            size: size,
            idiom: idiom,
            filename: filename,
            platform: platform,
            scale: scale,
            appearances: <ContentsImageAppearanceObject>[
              ContentsImageAppearanceObject(
                appearance: 'luminosity',
                value: 'dark',
              ),
            ],
          ).toJson(),
        );
      }
    }
  }

  if (tintedFileNamePrefix != null) {
    for (final config
        in imageConfigurations.where((e) => e['idiom'] == 'universal')) {
      final size = config['size']!;
      final idiom = config['idiom']!;
      final platform = config['platform'];
      final List<String> scales = config['scales'];

      for (final scale in scales) {
        final filename = '$tintedFileNamePrefix-$size@$scale.png';
        imageList.add(
          ContentsImageObject(
            size: size,
            idiom: idiom,
            filename: filename,
            platform: platform,
            scale: scale,
            appearances: <ContentsImageAppearanceObject>[
              ContentsImageAppearanceObject(
                appearance: 'luminosity',
                value: 'tinted',
              ),
            ],
          ).toJson(),
        );
      }
    }
  }

  return imageList;
}