之前遇到这样一个需求,根据后台返回的数据循环创建多个输入框,个人思路是:初始化一个
Map
,key为后台返回的数据,value为TextEditingController
,简单实现代码如下:
//初始化输入框Map
Map<String, TextEditingController> _textControllers = Map();
//数据源
List dataList = ['指标1', '指标2', '指标3', '指标4', '指标5','指标6', '指标7','指标8', '指标9','指标10', '指标11', '指标12', '指标13', '指标14','指标15' ];
//绑定
dataList.forEach((element) {
_textControllers[element] = TextEditingController();
});
//UI
Expanded(
child: ListView.separated(
itemBuilder: (context, index) {
return Row(
children: <Widget>[
Container(
alignment: Alignment.centerLeft,
padding: EdgeInsets.only(left: 15, top: 10, bottom: 10),
child: Text(
'${dataList[index]}',
style: TextStyle(color: Colors.red, fontSize: 17),
),
),
Padding(padding: EdgeInsets.only(left: 10)),
Expanded(
child: TextField(
controller: _textControllers[dataList[index]],
maxLines: 1,
keyboardType: TextInputType.text,
autofocus: false,
style: TextStyle(fontSize: 17, color: Colors.black),
decoration: InputDecoration(
border: InputBorder.none,
hintText: '请输入',
hintStyle: TextStyle(
color: Colors.grey[400],
fontSize: 15,
),
),
onTap: () {},
onChanged: (value) => {},
onEditingComplete: () {
FocusScope.of(context).requestFocus(FocusNode());
},
),
),
],
);
},
separatorBuilder: (context, index) {
return Divider(
height: .5,
indent: 15,
endIndent: 15,
color: Colors.grey,
);
},
itemCount: dataList.length),
),
//取值
List valueList = List();
dataList.forEach((item) {
Map valueMap = Map();
if (_textControllers[item].text.isNotEmpty) {
valueMap[item] = _textControllers[item].text;
print(valueMap);
valueList.add(valueMap);
}
});
print(valueList);
}
具体实现还请根据项目需求,做相关优化。