我正在尝试在Flutter中样式化ExpansionPanel,但颜色未应用到整个面板。我尝试使用Container和Card小部件,但颜色并没有更新。有什么想法吗?我想添加背景颜色来覆盖整个ExpansionPanel。是否有办法将父主题添加到ExpansionPanel中。
卡片
Card(
elevation: 2.0,
color: Theme.of(context).primaryColor,
margin: EdgeInsets.only(left: 10.0,right: 10.0,top: 10.0),
child: ExpansionPanelList(
expansionCallback: (int index, bool isExpanded) {
setState(() {
_items[index].isExpanded = !_items[index].isExpanded;
Timer(Duration(milliseconds: 200), () {
setState(() {
_reconfigureFAB();
});
});
});
},
children: _items.map((IncludedItem item) {
return ExpansionPanel(
headerBuilder: (BuildContext context, bool isExpanded) {
return Container(
padding: EdgeInsets.only(left: 18.0),
child: Row(children: [
Text(
"What's included",
textAlign: TextAlign.start,
style: TextStyle(
fontFamily: 'Bold',
fontSize: 33.0,
color: Theme.of(context).backgroundColor),
),
]),
);
;
},
isExpanded: item.isExpanded,
body: Container(
child: Text("body"),
),
);
}).toList(),
),
);
容器
Container(
color: Theme.of(context).primaryColor,
margin: EdgeInsets.only(left: 10.0,right: 10.0,top: 10.0),
child: ExpansionPanelList(
expansionCallback: (int index, bool isExpanded) {
setState(() {
_items[index].isExpanded = !_items[index].isExpanded;
Timer(Duration(milliseconds: 200), () {
setState(() {
_reconfigureFAB();
});
});
});
},
children: _items.map((IncludedItem item) {
return ExpansionPanel(
headerBuilder: (BuildContext context, bool isExpanded) {
return Container(
padding: EdgeInsets.only(left: 18.0),
child: Row(children: [
Text(
"What's included",
textAlign: TextAlign.start,
style: TextStyle(
fontFamily: 'Bold',
fontSize: 33.0,
color: Theme.of(context).backgroundColor),
),
]),
);
;
},
isExpanded: item.isExpanded,
body: Container(
child: Text("body"),
),
);
}).toList(),
),
);
ExpandIcon
的颜色:https://github.com/flutter/flutter/issues/18992 - Kirill Shashov