我试图在颤振中创建一个开关瓦片列表,这些瓦片之间有分隔符。
我试过使用ListTile.divideTiles
:
ListView(
children: ListTile.divideTiles(
context: context,
tiles: [
SwitchListTile(
secondary: Icon(Icons.signal_cellular_4_bar),
title: Text(
"First Tile",
),
value: var1,
onChanged: (bool value) {
setState(
() {
var1= value;
},
);
},
),
SwitchListTile(
secondary: Icon(Icons.swap_vert),
title: Text(
"Second Tile",
),
value: var2,
onChanged: (bool value) {
setState(
() {
var2= value;
},
);
},
),
],
),
),
但是当我尝试运行代码时,出现以下错误:
"type '_SyncIterable<Widget>' is not a subtype of type 'List<Widget>'"
谁用分隔符创建开关磁贴列表?
请试试这个。
将.toList()
添加到ListTile.divideTiles
的末尾
ListTile.divideTiles(
// all your code
// all your code
// all your code
).toList()
你为什么不试试ListView.separated
?
int _selectedIndex = 0;
return ListView.separated(
//Here's your separator
separatorBuilder: (BuildContext context, int index) {
return SizedBox(
height: 10, //Whatever spacing you want.
);
},
physics: BouncingScrollPhysics(),
scrollDirection: Axis.vertical,
shrinkWrap: true,
itemCount: 2, //How many tiles you want
padding: EdgeInsets.all(10),
itemBuilder: (BuildContext context, int index) {
return ClipRRect( //round up the edges for nicer look
borderRadius: BorderRadius.all(Radius.circular(5)),
//And here's your tile
child: SwitchListTile(
tileColor: Colors.grey[900],
selectedTileColor: Colors.black,
selected: index == _selectedIndex,
value: ... ,
onChanged: (v) {
...
},
title: Text('Tile #' + index.toString()),
subtitle: Text('-'),
),
);
},
);
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