import 'package:flutter/services.dart'; class EventChannelWindowFocus { static const MethodChannel _channel = const MethodChannel('floss.myzel394.quid_faciam_hodie/window_focus'); static void setGlobalListener(void Function(bool) listener) { _channel.setMethodCallHandler((call) async { if (call.method == 'windowFocusChanged') { listener(call.arguments as bool); } return null; }); } }