问题描述
我是一个数据表，从 api 的行中插入数据，并添加编辑图标。所以当我点击编辑图标时会出现一个弹出对话框，它有 3 个文本字段，日期，时间和超时，所以当用户按时间输入和超时输入文本时，它应该发送它的 api 正文，但是当我这样做时它给了我这个错误
I/Flutter (25853): date:TextEditingController#b256a(TextEditingValue(text: ┤├,selection: TextSelection(baSEOffset: -1,extentOffset: -1,affinity: TextAffinity.downstream,isDirectional: false),composing: TextRange(start: -1,end: -1))) timein: TextEditingController#dbef7(TextEditingValue(text: ┤├,end: -1))) timeout: TextEditingController#cc4d8(TextEditingValue(text: ┤├,end: -1)))
I/Flutter (25853): dioError [dioErrorType.response]: Http status error [404]
这是我在做这个场景的代码
AlertDialog alert = AlertDialog(
scrollable: true,//contentPadding:EdgeInsets.fromLTRB(0,20,20),insetPadding: EdgeInsets.symmetric(vertical: 50),//contentPadding: const EdgeInsets.all(16.0),title: Text("Request to change time",style: TextStyle(fontWeight: FontWeight.bold,color: Colors.blue[500])),content:Container(child: SingleChildScrollView(
scrollDirection: Axis.vertical,child:Column(children:<Widget> [
TextField(
decoration: Inputdecoration(labelText: date,hintText: "Date"),controller:dateController,),TextField(
decoration: Inputdecoration(labelText: timein,hintText: "Time in"),controller:timeinController,TextField(
decoration: Inputdecoration(labelText:timeout,hintText: "Time out"),controller:timeoutController,]),)
),// Widget okButton = FlatButton(
// child: Text("Submit",color: Colors.blue[500],fontSize: 20),// onpressed: () {
// markCorrectionApi();
// },// );
actions: [
FlatButton(
child: Text("Submit",onpressed: () {
dio dio=new dio();
var data={
'_id': id,'TimeIn': timein,'TimeOut':timeout,'NewTimeIn':timeinController.text.toString(),'NewTimeOut':timeoutController.text.toString(),};
dio
.post(localhostUrlMarkCorrection,data: json.encode(data))
.then((onResponse) async {
print("mark correction");
print(onResponse.data);
print(onResponse.statusCode);
}).catchError((onerror){
print(onerror.toString());
showAlertDialog(context);
});
}
)],);
showDialog(
context: context,builder: (BuildContext context) {
return alert;
},);
print('date:$dateController timein: $timeinController timeout: $timeoutController' );
print('date:$date timein: $timein timeout: $timeout' );
}
这里是错误的快照
更新代码：
String timeinText="";
String timeoutText="";
void getupdatedTime(){
setState(() {
timeinText = timeinController.text;
timeoutText=timeoutController.text;
});
}
void _getSelectedRowInfo(dynamic date,dynamic timein,dynamic timeout) {
AlertDialog alert = AlertDialog(
scrollable: true,onpressed: () {
getupdatedTime();
dio dio=new dio();
var data={
'_id': id,'NewTimeIn':timeinText,'NewTimeOut':timeoutText,data: json.encode(data))
.then((onResponse) async {
print("mark correction");
print(onResponse.data);
print(onResponse.statusCode);
}).catchError((onerror){
print(onerror.toString());
// showAlertDialog(context);
});
}
)],);
showDialog(
context: context,builder: (BuildContext context) {
return alert;
},);
print('date:$dateController timein: $timeinController timeout: $timeoutController' );
print('date:$date timein: $timein timeout: $timeout' );
}
更新代码
void _getSelectedRowInfo(dynamic id,dynamic date,dynamic timeout) {
AlertDialog alert = AlertDialog(
scrollable: true,onpressed: () {
getupdatedTime();
dio dio=new dio();
var data={
'id': id,'token':getaccesstoken,'TimeIn': "4:40:40 PM",'TimeOut':"4:50:50 PM",};
print("token is "+getaccesstoken);
print("submit id is "+id);
print(data);
dio
.post(localhostUrlMarkCorrection,data: json.encode(data)) //when i do debugging it not running after this line
.then((onResponse) async {
print("mark correction");
print(onResponse.data);
print(onResponse.statusCode);
}).catchError((onerror){ //it comes here and print 404 error
print(onerror.toString());
// showAlertDialog(context);
});
}
)],);
// print('date:$dateController timein: $timeinController timeout: $timeoutController' );
// print('date:$date timein: $timein timeout: $timeout' );
}
我做错了什么？
解决方法
首先，您确定正确实例化这些控制器，例如
timeinController = new TextEditingController();
看看您使用它的方式，我想您正在向该控制器添加侦听器。 其次，什么类型是“NewTimeIn”和“NewTimeIn”。如果我们在这里讨论时间操作，那么您将从控制器 efen 获得纯字符串。