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import 'package:flutter/material.dart';
import 'package:flutter_smart_dialog/flutter_smart_dialog.dart';
import 'package:visibility_detector/visibility_detector.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({super.key});
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
useMaterial3: true,
),
home: const MyHomePage(title: 'Flutter Demo Home Page'),
builder: FlutterSmartDialog.init(), //这里注释掉就不会有问题
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({super.key, required this.title});
final String title;
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
int _counter = 0;
void _incrementCounter() {
Navigator.push(
context,
MaterialPageRoute(builder: (context) => Page1()),
);
}
@override
Widget build(BuildContext context) {
print("rebuild");
// This method is rerun every time setState is called, for instance as done
// by the _incrementCounter method above.
//
// The Flutter framework has been optimized to make rerunning build methods
// fast, so that you can just rebuild anything that needs updating rather
// than having to individually change instances of widgets.
return Scaffold(
appBar: AppBar(
// TRY THIS: Try changing the color here to a specific color (to
// Colors.amber, perhaps?) and trigger a hot reload to see the AppBar
// change color while the other colors stay the same.
backgroundColor: Theme.of(context).colorScheme.inversePrimary,
// Here we take the value from the MyHomePage object that was created by
// the App.build method, and use it to set our appbar title.
title: Text(widget.title),
),
body: Container(
child: Column(
children: [
Expanded(
child: VisibilityDetector(
key: Key("rec"),
onVisibilityChanged: (VisibilityInfo visibilityInfo) {
var visiblePercentage = visibilityInfo.visibleFraction * 100;
if (visiblePercentage == 100.0) {
print("推荐页面111");
}
},
child: PageView(
physics: NeverScrollableScrollPhysics(),
children: <Widget>[
VisibilityDetector(
key: Key("reca"),
onVisibilityChanged: (VisibilityInfo visibilityInfo) {
var visiblePercentage =
visibilityInfo.visibleFraction * 100;
if (visiblePercentage == 100.0) {
print("首页首页");
}
},
child: Container(
width: 300,
// color: Colors.red,
child: Column(
children: [
const Text(
'You have pushed the button this many times:',
),
InkWell(
onTap: () {
_incrementCounter();
},
child: Text("dfdfd"),
)
],
),
),
),
Text(
'$_counter',
style: Theme.of(context).textTheme.headlineMedium,
),
],
),
),
),
Container(width: 200, height: 40, color: Colors.red)
],
),
),
floatingActionButton: FloatingActionButton(
onPressed: _incrementCounter,
tooltip: 'Increment',
child: const Icon(Icons.add),
), // This trailing comma makes auto-formatting nicer for build methods.
);
}
}
class Page1 extends StatelessWidget {
@override
Widget build(BuildContext context) {
// TODO: implement build
return PageView(
children: [
Center(
child: Text(
"page1",
style: TextStyle(color: Colors.red),
),
)
],
);
}
}
The text was updated successfully, but these errors were encountered:
版本信息
描述bug/需求
onVisibilityChanged 在iOS上 左滑返回有几率会出发两次
VisibilityDetector(
key: Key("reca"),
onVisibilityChanged: (VisibilityInfo visibilityInfo) {
var visiblePercentage =
visibilityInfo.visibleFraction * 100;
if (visiblePercentage == 100.0) {
print("首页首页"); ///在iOS上 左滑返回有几率会出发两次
}
},
child:***)
问题demo
The text was updated successfully, but these errors were encountered: