#pragma mark - validate Email And Phone number
- (BOOL) validateEmail: (NSString *) candidate
{
NSString *emailRegex = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";
NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];
return [emailTest evaluateWithObject:candidate];
}
- (BOOL) textField:(UITextField*)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString*)textEntered
{
if(textField)
{
NSUInteger currentLength = textField.text.length;
NSCharacterSet *numbers = [NSCharacterSet decimalDigitCharacterSet];
if (range.length == 1)
{
return YES;
}
if ([numbers characterIsMember:[textEntered characterAtIndex:0]])
{
if ( currentLength == 3 )
{
if (range.length != 1)
{
NSString *firstThreeDigits = [textField.text substringWithRange:NSMakeRange(0, 3)];
NSString *updatedText;
if ([textEntered isEqualToString:@"-"])
{
updatedText = [NSString stringWithFormat:@"%@",firstThreeDigits];
}
else
{
updatedText = [NSString stringWithFormat:@"%@-",firstThreeDigits];
}
[textField setText:updatedText];
}
}
else if ( currentLength > 3 && currentLength < 8 )
{
if ( range.length != 1 )
{
NSString *firstThree = [textField.text substringWithRange:NSMakeRange(0, 3)];
NSString *dash = [textField.text substringWithRange:NSMakeRange(3, 1)];
NSUInteger newLenght = range.location - 4;
NSString *nextDigits = [textField.text substringWithRange:NSMakeRange(4, newLenght)];
NSString *updatedText = [NSString stringWithFormat:@"%@%@%@",firstThree,dash,nextDigits];
[textField setText:updatedText];
}
}
else if ( currentLength == 8 )
{
if ( range.length != 1 )
{
NSString *areaCode = [textField.text substringWithRange:NSMakeRange(0, 3)];
NSString *firstThree = [textField.text substringWithRange:NSMakeRange(4, 3)];
NSString *nextDigit = [textField.text substringWithRange:NSMakeRange(7, 1)];
[textField setText:[NSString stringWithFormat:@"%@-%@-%@",areaCode,firstThree,nextDigit]];
}
}
NSUInteger proposedNewLength = textField.text.length - range.length + textEntered.length;
if (proposedNewLength > 12) return NO;
return YES;
}
else
{
return NO;
}
return YES;
}
return YES;
}
