createColors function

Future<void> createColors({ String? color, bool isDark = false, })

Creates a colors.xml file to define background color for the splash.

Implementation

Future<void> createColors({
  String? color,
  bool isDark = false,
}) async {
  if (color == null) {
    log('No color is provided. Skip setting up color in Android');
    return;
  }

  final androidValuesFolder = isDark
      ? CmdStrings.androidDarkValuesDirectory
      : CmdStrings.androidValuesDirectory;
  final colorsFilePath = '$androidValuesFolder/${AndroidStrings.colorXml}';

  final xmlFile = File(colorsFilePath);
  if (await xmlFile.exists()) {
    final xmlDocument = XmlDocument.parse(xmlFile.readAsStringSync());
    final resourcesElement =
        xmlDocument.findAllElements(AndroidStrings.resourcesElement).first;

    /// Check if `splashBackGroundColor` attribute value is already available
    for (final element in resourcesElement.childElements) {
      if (element.getAttribute(AndroidStrings.nameAttr) ==
          AndroidStrings.nameAttrValue) {
        /// Remove the attribute
        element.remove();
        break;
      }
    }

    /// Add color element as child to resources element
    resourcesElement.children.addAll([
      XmlElement(
        XmlName(AndroidStrings.colorElement),
        [
          XmlAttribute(
            XmlName(AndroidStrings.nameAttr),
            AndroidStrings.nameAttrValue,
          ),
        ],
        [
          XmlText(color),
        ],
      ),
    ]);

    /// Write the updated XML back to the file
    final updatedXmlString = xmlDocument.toXmlString(pretty: true);
    await xmlFile.writeAsString(updatedXmlString);
  } else {
    /// If `colors.xml` file is not there, then create one
    final xml = await xmlFile.create();
    final builder = XmlBuilder();
    builder.processing(AndroidStrings.xml, AndroidStrings.xmlVersion);

    /// Create resources element and its children element color with its attribute
    builder.element(AndroidStrings.resourcesElement, nest: () {
      builder.element(
        AndroidStrings.colorElement,
        attributes: {
          AndroidStrings.nameAttr: AndroidStrings.nameAttrValue,
        },
        nest: color,
      );
    });
    final document = builder.buildDocument();
    await xml.writeAsString(document.toXmlString(pretty: true));
  }
}