flutter text form field email validation
String validateEmail(String value) {
Pattern pattern =
r"^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]"
r"{0,253}[a-zA-Z0-9])?(?:.[a-zA-Z0-9](?:[a-zA-Z0-9-]"
r"{0,253}[a-zA-Z0-9])?)*$";
RegExp regex = new RegExp(pattern);
if (!regex.hasMatch(value) || value == null)
return 'Enter a valid email address';
else
return null;
}text input validation message color flutter
TextFormField(
decoration: InputDecoration(
errorStyle: TextStyle(
color: Colors.red[400],
fontWeight: FontWeight.bold,
fontSize: 13,
),
),
...
)Copyright © 2021 Codeinu
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