问题描述
我正在从用户那里获取联系信息。并通过电子邮件发送给其他人。但是我想以结构格式发送信息，例如表格等。
现在电子邮件看起来像：{“名称”：“约翰逊”，“日期”：“ 12-12-2020”，“电话”：“（387）890-0987”，“电子邮件”：“ usename @ domain。 com“}
我想以表格形式发送数据。如下所示。
OR
不喜欢 {“名称”：“约翰逊”，“日期”：“ 12-12-2020”，“电话”：“（387）890-0987”，“电子邮件”：“ usename@domain.com”}
这是我的代码：
import 'dart:ui';
import 'package:Flutter/material.dart';
import 'package:Flutter/services.dart';
import 'dart:async';
import 'dart:convert';
import 'package:mailer2/mailer.dart';
void main() => runApp(new MaterialApp(home: new MyApp(),debugShowCheckedModeBanner: false,));
class StepSixSessionSix {
Future<Contact> createContact(Contact contact) async {
try {
String json = _toJson(contact);
var options = new GmailSmtpOptions()
..username = 'myusername'
..password = 'mypassword';
var emailTransport = new SmtpTransport(options);
var envelope = new Envelope()
..from = 'email@gmail.com'
..recipients.add('anotheremail@outlook.com')
..subject = 'Testing2'
..html = json;
emailTransport.send(envelope)
.then((envelope) => print('Email sent!'))
.catchError((e) => print('Error occurred: $e'));
} catch (e) {
print('Server Exception!!!');
print(e);
return null;
}
}
String _toJson(Contact contact) {
var mapData = new Map();
mapData["Name"] = contact.name ;
mapData["Phone"] = contact.phones;
mapData["Email"] = contact.emails;
mapData["Message Subject "] = contact.messagesubject; // date for session 1's first
mapData["Message Text "] = contact.messagetext; // date for session 1's first
String json = jsonEncode(mapData);
return json;
}
}
class Contact {
String name;
String phones = '';
String emails= '';
String messagesubject;
String messagetext;
}
bool isValidPhoneNumber(String input) {
final RegExp regex = new RegExp(r'^\(\d\d\d\)\d\d\d\-\d\d\d\d$');
return regex.hasMatch(input);
}
void showMessage(String message,[MaterialColor color = Colors.red]) {
_scaffoldKey.currentState
.showSnackBar(new SnackBar(backgroundColor: color,content: new Text(message)));
}
void _submitForm() {
final FormState form = _formKey.currentState;
if (!form.validate()) {
showMessage('Form is not valid! Please review and correct.');
} else {
form.save(); //This invokes each onSaved event
var stepsixsessionsix = new StepSixSessionSix();
stepsixsessionsix.createContact(newContact);
showMessage('Form Submitted',Colors.blue);
}
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return new MaterialApp(
title: 'Flutter Form Demo',theme: new ThemeData(
hintColor: Colors.white,primarySwatch: Colors.yellow,),home: new MyHomePage(title: 'Flutter Form Demo'),);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key,this.title}) : super(key: key);
final String title;
@override
_MyHomePageState createState() => new _MyHomePageState();
}
Contact newContact = new Contact();
final GlobalKey<ScaffoldState> _scaffoldKey = new GlobalKey<ScaffoldState>();
final GlobalKey<FormState> _formKey = new GlobalKey<FormState>();
class _MyHomePageState extends State<MyHomePage> {
bool isValidEmail(String input) {
final RegExp regex = new RegExp(r"^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]
{0,253}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,253}[a-zA-Z0-9])?)*$");
return regex.hasMatch(input);
}
double itemsHeight = 30;
Widget getTextField({String hint = 'Ingredients',Widget suffix}) {
return Container(
height: itemsHeight,child: TextField(
decoration: Inputdecoration(
border: OutlineInputBorder(
borderRadius: BorderRadius.zero,borderSide: BorderSide(color: Colors.white,width: 1)),hintText: hint,contentPadding: EdgeInsets.all(
0),// change each value,and set 0 remainding ones.
suffixIcon: suffix,expands: false,maxLines: 1,controller: TextEditingController(),);
}
@override
Widget build(BuildContext context) {
return new Scaffold(
key: _scaffoldKey,appBar: new AppBar(
title: new Text('Contact'),backgroundColor: Color(0xFFF6D580),backgroundColor: Colors.black,body: new SafeArea(
top: false,bottom: false,child: new Form(
key: _formKey,autovalidate: true,child: new Container(
padding: const EdgeInsets.only( top: 20.0),child: SingleChildScrollView(
child: new Column(
children: <Widget>[
new Text('Contact Us',style: TextStyle(fontSize: 25.0,color: const
Color(0xFFffffff)),textAlign: TextAlign.center),new TextFormField(
style: TextStyle(
color: Colors.white,decoration: const Inputdecoration(
icon: const Icon(Icons.person,color: Colors.grey,hintText: 'Enter your first and last name',labelText: 'Your Name',inputFormatters: [new LengthLimitingTextInputFormatter(30)],onSaved: (val) => newContact.name = val,decoration: const Inputdecoration(
icon: const Icon(Icons.phone,hintText: 'Enter a phone number',labelText: 'Your phone',keyboardType: TextInputType.phone,inputFormatters: [
new WhitelistingTextInputFormatter(
new RegExp(r'^[()\d -]{1,15}$')),],validator: (val) => isValidPhoneNumber(val)
? null
: 'Phone number must be entered as (###)###-####',onSaved: (val) => newContact.phones = val,decoration: const Inputdecoration(
icon: const Icon(Icons.email,hintText: 'Enter a email address',labelText: 'Your email',keyboardType: TextInputType.emailAddress,validator: (val) => isValidEmail(val)
? null
: 'Please enter a valid email address',onSaved: (val) => newContact.emails = val,new TextFormField(
style: TextStyle(
color: Colors.white,decoration: const Inputdecoration(
labelText: 'Message subject',onSaved: (val) => newContact.messagesubject = val,decoration: const Inputdecoration(
labelText: 'Message text',onSaved: (val) => newContact.messagetext = val,new Container(
padding: const EdgeInsets.only( top: 20.0),child: new RaisedButton(
color: const Color(0xFFF6D580),child: const Text('Send',style: TextStyle(fontSize: 20.0),onpressed: _submitForm,)),))))),);
}
}
谢谢！
解决方法
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