Email Validation Code in Android

Almost on every login and Sign Up screen, you have to create email field and add email validation on it. Its a simple code for email validation.
Here you have to call it first doing login or sign up.

public static boolean checkValidEmail(EditText emailEditText,Context _context)
    {
        if(TextUtils.isEmpty(emailEditText.getText().toString())){
            emailEditText.setError(_context.getString(R.string.empty_filed));
            emailEditText.requestFocus();
            return false;
        }
        else if(!(emailEditText.getText().toString().contains("@")  && emailEditText.getText().toString().contains(".")))
        {
            emailEditText.setError(_context.getString(R.string.invalid_email));
            emailEditText.requestFocus();
            return false;
        }
        return true;
    }