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import 'package:flutter/material.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: Text('事件通知'),
),
body: NotificationListenerPage(),
),
);
}
}
class NotificationListenerPage extends StatelessWidget {
@override
Widget build(BuildContext context) {
// 监听滚动通知
return NotificationListener(
// ignore: missing_return
onNotification: (notification) {
switch (notification.runtimeType) {
case ScrollStartNotification:
print('ScrollStart');
break;
case ScrollUpdateNotification:
print('ScrollUpdate');
break;
case ScrollEndNotification:
print('ScrollEnd');
break;
case OverscrollNotification:
print('Overscroll');
break;
}
},
child: ListView.builder(
itemCount: 100,
itemBuilder: (context, index) {
return ListTile(
title: Text("$index"),
);
},
),
);
}
}
Also see: Tab Triggers