I am developing an app in which I have email edit text field in which I make some validation it works but not properly when I enter email like jj@gm.cim it except that but this is wrong right validation is jj@gmail.com .
How can I do like that?
Here is code:-
public boolean validation(String mobile,String pass,String email){
if (mobile!=null && mobile.length() >= 7 && mobile.length() <= 15) {
if (pass.length() >= 4 && pass.length() <= 8) {
if (isValidEmail(email)) {
return true;
} else {
m_EmailEditText.setError("Invalid EmailID");
return false;
}
} else {
m_PasswordEditText.setError("password must be between 4 to 8 characters long");
return false;
}
} else {
m_MobileEditText.setError("mobile number must be between 7 to 51 characters long");
return false;
}
}
// This is validation for email……….and link to above code….
private boolean isValidEmail(String email) {
String emailPattern = "^[_A-Za-z0-9-\\+]+(\\.[_A-Za-z0-9-]+)*@"
+ "[A-Za-z0-9-]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$";
Pattern pattern = Pattern.compile(emailPattern);
Matcher matcher = pattern.matcher(email);
return matcher.matches();
}
If you want to use regex then try this way to get valid email
public static boolean isEmailValid(String email) {
boolean isValid = false;
String expression = "^[\\w\\.-]+@([\\w\\-]+\\.)+[A-Z]{2,4}$";
CharSequence inputStr = email;
Pattern pattern = Pattern.compile(expression, Pattern.CASE_INSENSITIVE);
Matcher matcher = pattern.matcher(inputStr);
if (matcher.matches()) {
isValid = true;
}
return isValid;
}
OR if you want to use default validation try this way
boolean isEmailValid(CharSequence email) {
return android.Util.Patterns.EMAIL_ADDRESS.matcher(email).matches();
}
You could also use,
public class EmailValidator {
private Pattern pattern;
private Matcher matcher;
private static final String EMAIL_PATTERN =
"^[_A-Za-z0-9-\\+]+(\\.[_A-Za-z0-9-]+)*@"
+ "[A-Za-z0-9-]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$";
public EmailValidator() {
pattern = Pattern.compile(EMAIL_PATTERN);
}
/**
* Validate hex with regular expression
*
* @param hex
* hex for validation
* @return true valid hex, false invalid hex
*/
public boolean validate(final String hex) {
matcher = pattern.matcher(hex);
return matcher.matches();
}
}
Function for validating the EmailID
private boolean isEmailValid(String email) {
String regExpn = "^(([\\w-]+\\.)+[\\w-]+|([a-zA-Z]{1}|[\\w-]{2,}))@" + "((([0-1]?[0-9]{1,2}|25[0-5]|2[0-4][0-9])\\.([0-1]?" + "[0-9]{1,2}|25[0-5]|2[0-4][0-9])\\."
+ "([0-1]?[0-9]{1,2}|25[0-5]|2[0-4][0-9])\\.([0-1]?" + "[0-9]{1,2}|25[0-5]|2[0-4][0-9])){1}|" + "([a-zA-Z]+[\\w-]+\\.)+[a-zA-Z]{2,4})$";
CharSequence inputStr = email;
Pattern pattern = Pattern.compile(regExpn, Pattern.CASE_INSENSITIVE);
Matcher matcher = pattern.matcher(inputStr);
if (matcher.matches())
return true;
else
return false;
}
Refer android Patterns
It`s android inbuild regular expression method.
https://developer.android.com/reference/android/util/Patterns.html
public final static boolean isValidEmail(CharSequence target) {
return !TextUtils.isEmpty(target) && android.util.Patterns.EMAIL_ADDRESS.matcher(target).matches();
}
Answer from this SO link - https://stackoverflow.com/a/7882950/3879847
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