How to check edittext's text is email address or not?
/**
* method is used for checking valid email id format.
*
* @param email
* @return boolean true for valid false for invalid
*/
public static boolean isEmailValid(String email) {
String expression = "^[\\w\\.-]+@([\\w\\-]+\\.)+[A-Z]{2,4}$";
Pattern pattern = Pattern.compile(expression, Pattern.CASE_INSENSITIVE);
Matcher matcher = pattern.matcher(email);
return matcher.matches();
}
Pass your edit text string in this function .
for right email verification you need server side authentication
Note there is now a built-in method in Android, see answers below.
Validate an email inside an EditText
Just change your regular expression as follows:
"[a-zA-Z0-9._-]+@[a-z]+\\.+[a-z]+"
Because . (dot) means match any single-char.ADD a double backslash before your dot to stand for a real dot.
Email Address Validation in Android on EditText
To perform Email Validation we have many ways,but simple & easiest way are two methods.
1- Using EditText(....).addTextChangedListener
which keeps triggering on every input in an EditText box
i.e email_id is invalid or valid
/**
* Email Validation ex:- tech@end.com
*/
final EditText emailValidate = (EditText)findViewById(R.id.textMessage);
final TextView textView = (TextView)findViewById(R.id.text);
String email = emailValidate.getText().toString().trim();
String emailPattern = "[a-zA-Z0-9._-]+@[a-z]+\\.+[a-z]+";
emailValidate .addTextChangedListener(new TextWatcher() {
public void afterTextChanged(Editable s) {
if (email.matches(emailPattern) && s.length() > 0)
{
Toast.makeText(getApplicationContext(),"valid email address",Toast.LENGTH_SHORT).show();
// or
textView.setText("valid email");
}
else
{
Toast.makeText(getApplicationContext(),"Invalid email address",Toast.LENGTH_SHORT).show();
//or
textView.setText("invalid email");
}
}
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
// other stuffs
}
public void onTextChanged(CharSequence s, int start, int before, int count) {
// other stuffs
}
});
2- Simplest method using if-else
condition. Take the EditText box string using getText() and compare with pattern provided for email. If pattern doesn't match or macthes, onClick of button toast a message. It ll not trigger on every input of an character in EditText box . simple example shown below.
final EditText emailValidate = (EditText)findViewById(R.id.textMessage);
final TextView textView = (TextView)findViewById(R.id.text);
String email = emailValidate.getText().toString().trim();
String emailPattern = "[a-zA-Z0-9._-]+@[a-z]+\\.+[a-z]+";
// onClick of button perform this simplest code.
if (email.matches(emailPattern))
{
Toast.makeText(getApplicationContext(),"valid email address",Toast.LENGTH_SHORT).show();
}
else
{
Toast.makeText(getApplicationContext(),"Invalid email address", Toast.LENGTH_SHORT).show();
}
Email validation on EditText - Android
We have a simple Email pattern matcher now
Java:
private static boolean isValidEmail(String email) {
return !TextUtils.isEmpty(email) && android.util.Patterns.EMAIL_ADDRESS.matcher(email).matches();
}
Kotlin Function:
private fun isValidEmail(email: String): Boolean {
return !TextUtils.isEmpty(email) && Patterns.EMAIL_ADDRESS.matcher(email).matches()
}
Kotlin Extension:
fun String.isValidEmail() =
!TextUtils.isEmpty(this) && Patterns.EMAIL_ADDRESS.matcher(this).matches()
Check if text is an Email address in android
Use a regular expression to parse the text for the email pattern
http://www.regular-expressions.info/email.html
\b[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}\b
identifying Email from edittext Android
It's extremely complicated to validate an email address. That article suggests that you simply try sending an email to the address, which doesn't exactly fit your use case, but think along those lines. Maybe do a crude validation, like testing whether the field contains @
, and if it does, try to use it as an email.
How should I validate an e-mail address?
Don't use a reg-ex.
Apparently the following is a reg-ex that correctly validates most e-mails addresses that conform to RFC 2822, (and will still fail on things like "user@gmail.com.nospam", as will org.apache.commons.validator.routines.EmailValidator)
(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*|"(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21\x23-\x5b\x5d-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])*")@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\[(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[a-z0-9-]*[a-z0-9]:(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21-\x5a\x53-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])+)\])
Possibly the easiest way to validate an e-mail to just send a confirmation e-mail to the address provided and it it bounces then it's not valid.
If you want to perform some basic checks you could just check that it's in the form *@*
If you have some business logic specific validation then you could perform that using a regex, e.g. must be a gmail.com account or something.
How can i validate email in android?
try this my friend
String emailAddress = etSignInEmail.getText().toString().trim();
if (android.util.Patterns.EMAIL_ADDRESS.matcher(emailAddress).matches()) {
useremail_layout.setError("valid Email address");
}
else{
useremail_layout.setError("invalid Email address");
}
Related Topics
How to Insert a SQLite Record with a Datetime Set to 'Now' in Android Application
"Failure Delivering Result " - Onactivityforresult
How to Use Autocompletetextview and Populate It with Data from a Web API
How to Add Button Tint Programmatically
Is Using Serializable in Android Bad
Catch on Swipe to Dismiss Event
Handle Button Click Inside a Row in Recyclerview
Why Is Eclipse's Android Device Chooser Not Showing My Android Device
How to 'Restart' an Android Application Programmatically
Get Certificate Fingerprint from Android App
Android: Autocompletetextview Show Suggestions When No Text Entered
How to View the Shared Preferences File Using Android Studio
Add Floating Point Value to Android Resources/Values
Custom Ssl Handling Stopped Working on Android 2.2 Froyo