import
'package:flutter/material.dart'
;
import
'package:lazy_load_scrollview/lazy_load_scrollview.dart'
;
void
main() => runApp(
new
MyApp());
class
MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return
new
MaterialApp(
title:
'Example'
,
home:
new
MyHomePage(title:
'GeeksForGeeks'
),
);
}
}
class
MyHomePage extends StatefulWidget {
MyHomePage({Key key,
this
.title}) : super(key: key);
final String title;
@override
_MyHomePageState createState() =>
new
_MyHomePageState();
}
class
_MyHomePageState extends State<MyHomePage> {
List<
int
> data = [];
int
currentLength = 0;
final
int
increment = 10;
bool
isLoading =
false
;
@override
void
initState() {
_loadMore();
super.initState();
}
Future _loadMore() async {
setState(() {
isLoading =
true
;
});
await
new
Future.delayed(
const
Duration(seconds: 2));
for
(var i = currentLength; i <= currentLength + increment; i++) {
data.add(i);
}
setState(() {
isLoading =
false
;
currentLength = data.length;
});
}
@override
Widget build(BuildContext context) {
return
Scaffold(
appBar: AppBar(
title: Text(widget.title),
backgroundColor: Colors.green,
),
body: LazyLoadScrollView(
isLoading: isLoading,
onEndOfPage: () => _loadMore(),
child: ListView.builder(
itemCount: data.length,
itemBuilder: (context, position) {
return
DemoItem(position);
},
),
),
);
}
}
class
DemoItem extends StatelessWidget {
final
int
position;
const
DemoItem(
this
.position, {
Key key,
}) : super(key: key);
@override
Widget build(BuildContext context) {
return
Card(
child: Padding(
padding:
const
EdgeInsets.all(8.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Row(
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
Container(
color: Colors.deepOrange,
height: 40.0,
width: 40.0,
),
SizedBox(width: 8.0),
Text(
"Item $position"
),
],
),
Text(
"GeeksforGeeks.org was created with a goal "
"in mind to provide well written, well "
"thought and well explained solutions for selected"
" questions. The core team of five super geeks"
" constituting of technology lovers and computer"
" science enthusiasts have been constantly working"
" in this direction ."
),
],
),
),
);
}
}