假设我正在如下运行异步线程，
ExecutorService是否需要执行任何关闭操作以防止此块后发生内存泄漏？当我使用service.shutdown()时，我不得不做class Home extends StatefulWidget {
@override
_HomeState createState() => new _HomeState();
}
class _HomeState extends State<Home> {
final List<String>listof=["Decimal Numbers","Binary Numbers","Decimal-to-Binary Conversion","Binary Arithmetic","Complements of Binary Numbers","Signed Numbers","Arithmetic Operations with Signed Numbers","Hexadecimal Numbers","Octal Numbers","Binary Coded Decimal (BCD)"];
@override
Widget build(BuildContext context) {
return new Scaffold(
appBar: new AppBar(
title: new Text(
"Computer System Theory",
style: new TextStyle(fontSize: 19.0),
),
backgroundColor: Colors.deepPurple,
actions: <Widget>[
new IconButton(
icon: new Icon(Icons.search),
onPressed: ()=>debugPrint("Search"),
),
],
),
body: new Container(
child: new ListView.builder(
itemBuilder: (_, int index)=>listDataItem(this.listof[index],),
itemCount: this.listof.length,
),
),
);
}
}
class listDataItem extends StatelessWidget{
String itemName;
listDataItem(this.itemName);
@override
Widget build(BuildContext context){
return new Card(
elevation: 7.0,
child: new Container(
margin: EdgeInsets.all(5.0),
padding: EdgeInsets.all(6.0),
child: new Row(
children: <Widget> [
new CircleAvatar(
child: new Text(itemName[0]),
backgroundColor: Colors.deepPurple,
foregroundColor: Colors.white,
),
new Padding(padding: EdgeInsets.all(8.0)),
new Text(itemName,style: TextStyle(fontSize: 18.0)),
],
),
),);
}
}
。
答案 0 :(得分：5)
不。如果您没有为supplyAsync提供执行程序，那么它将使用fork-join common pool，而不必启动或停止该执行程序。实际上，它不能被停止。
此池是静态构造的；其运行状态不受尝试
shutdown()或shutdownNow()的影响。