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Email validation and form reset after submission #10

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Email validation and form reset after submission #10

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29 changes: 23 additions & 6 deletions lib/main.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -65,6 +65,10 @@ class _MyHomePageState extends State<MyHomePage> {
if (response == FormController.STATUS_SUCCESS) {
// Feedback is saved succesfully in Google Sheets.
_showSnackbar("Feedback Submitted");
nameController.clear();
emailController.clear();
mobileNoController.clear();
feedbackController.clear();
} else {
// Error Occurred while saving data in Google Sheets.
_showSnackbar("Error Occurred!");
Expand All @@ -73,6 +77,14 @@ class _MyHomePageState extends State<MyHomePage> {
}
}

bool isEmail(String email) {
bool emailValid = RegExp(
r"^[a-zA-Z0-9.a-zA-Z0-9.!#$%&'*+-/=?^_`{|}~]+@[a-zA-Z0-9]+\.[a-zA-Z]+")
.hasMatch(email);

return emailValid;
}

// Method to show snackbar with 'message'.
_showSnackbar(String message) {
final snackBar = SnackBar(content: Text(message));
Expand All @@ -83,7 +95,7 @@ class _MyHomePageState extends State<MyHomePage> {
Widget build(BuildContext context) {
return Scaffold(
key: _scaffoldKey,
resizeToAvoidBottomPadding: false,
resizeToAvoidBottomInset: false,
appBar: AppBar(
title: Text(widget.title),
),
Expand Down Expand Up @@ -111,7 +123,7 @@ class _MyHomePageState extends State<MyHomePage> {
TextFormField(
controller: emailController,
validator: (value) {
if (!value.contains("@")) {
if (!isEmail(value)) {
return 'Enter Valid Email';
}
return null;
Expand Down Expand Up @@ -146,15 +158,20 @@ class _MyHomePageState extends State<MyHomePage> {
],
),
)),
RaisedButton(
MaterialButton(
elevation: 5,
color: Colors.blue,
textColor: Colors.white,
onPressed: _submitForm,
child: Text('Submit Feedback'),
),
RaisedButton(
color: Colors.lightBlueAccent,
textColor: Colors.black,
SizedBox(
height: 5,
),
MaterialButton(
elevation: 5,
color: Colors.blue,
textColor: Colors.white,
onPressed: () {
Navigator.push(
context,
Expand Down