import 'package:JAPANESE/data/hiraganaall.dart';
import 'package:flutter/material.dart';
class HiraganaPage extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(
"Hiragana",
style: TextStyle(
color: Colors.white,
),
),
centerTitle: true,
backgroundColor: Colors.blueAccent,
),
body: ListView.separated(
separatorBuilder: (context, index) {
return Divider(
thickness: 3.0,
height: 1.0,
);
},
itemCount: data.length,
itemBuilder: (context, index) {
return Container(
decoration: BoxDecoration(color: Colors.grey[300]),
child: ListTile(
leading: CircleAvatar(
backgroundColor: Colors.white,
radius: 28,
child: Image.network(
data[index]["writing"],
),
),
title: Text(
"Text: " + data[index]["key"],
style: TextStyle(
fontFamily: "Merienda",
fontSize: 18.22,
),
),
subtitle: Text(
"Reading: " + data[index]["reading"],
style: TextStyle(
fontFamily: "Merienda",
fontSize: 18.22,
),
),
),
);
},
),
);
}
}
我已经在 Flutter 中创建了一个 ListView,但是现在我在这个 ListView 中有一些可以选择的 ListTiles。选择后,我希望背景颜色更改为我选择的颜色。我不知道该怎么做。在文档中,他们提到 ListTile 具有属性样式。但是,当我尝试添加它时(如下面代码的倒数第三行),此样式属性下方有一条波浪状的红线,编译器告诉我未定义命名参数“样式”。
答案 0 :(得分:0)
你可以用一个容器包裹 ListTile 并改变它的颜色。这是带有该代码和更改颜色的方法的示例:
class Issue66349460 extends StatefulWidget {
@override
_Issue66349460State createState() => _Issue66349460State();
}
class _Issue66349460State extends State<Issue66349460> {
List<Item> items = [
Item(title: 'Item 1', color: Colors.red),
Item(title: 'Item 2', color: Colors.blue),
Item(title: 'Item 3', color: Colors.green),
];
@override
Widget build(BuildContext context) {
return ListView.builder(
itemCount: items.length,
itemBuilder: (context, index) {
return Container(
color: items[index].color,
child: ListTile(
title: Text(items[index].title),
onTap: () => changeListTileColor(items[index]),
),
);
}
);
}
void changeListTileColor(Item item){
setState(() {
item.color = Colors.deepPurple;
});
}
}
class Item {
String title;
Color color;
Item({@required this.title, this.color});
}