Simple way to detect empty field

// Detect empty fields

-(BOOL) detectEmptyTextFields {

    

    UITextField *temp = (UITextField *)[self.Control1 viewWithTag:12];

    

    //Remove whitespaces if any in string

    NSCharacterSet *whitespace = [NSCharacterSet whitespaceCharacterSet];

    NSString *trimmedString = [temp.text stringByTrimmingCharactersInSet:whitespace];

    

    NSLog(@"Value of the text field is %@",trimmedString);

    

    if (([trimmedString isEqualToString:@""])) {

        return YES;

    }

    

    NSLog(@"temp.text : %@",temp.text);

    

    if ([temp.text isEqualToString:@""] || temp.text==nil) {

        return YES;

    }

    

    return NO;

}