Blog: Enrich the Flutter Inspector with Diagnosticable properties

diagnosticable_properties_2.dart

class MyColorScheme with Diagnosticable {
  final Color textColor;
  final Color backgroundColor;

  MyColorScheme(this.textColor, this.backgroundColor);

  @override
  void debugFillProperties(DiagnosticPropertiesBuilder properties) {
    super.debugFillProperties(properties);
    properties.add(ColorProperty('textColor', textColor));
    properties.add(ColorProperty('backgroundColor', backgroundColor));
  }
}

class _MyHomePageState extends State<MyHomePage> {
  late MyColorScheme _myColorScheme;
  int _counter = 0;

  @override
  void initState() {
    _myColorScheme = MyColorScheme(Colors.black, Colors.white);
    super.initState();
  }

  @override
  void debugFillProperties(DiagnosticPropertiesBuilder properties) {
    super.debugFillProperties(properties);
    properties.add(IntProperty('_counter', _counter));
    properties.add(
        DiagnosticsProperty<MyColorScheme>('myColorScheme', _myColorScheme));
  }

   // Code omitted for brevity.
}