小编Chu*_*ing的帖子

我在构建视图控制器时遇到问题.这是我的appdelegate中的代码片段:

        InitViewController *initVC = (InitViewController *)self.window.rootViewController;
        VMParentVC *topVC = (VMParentVC *) initVC;
        [topVC navigateToMain];

我正在尝试做的是转换rootViewController,以便我能够使用我的VMParentVC类中的方法.但是当我这样做时,我得到这个错误:

"[UINavigationController navigateToMain]:无法识别的选择器发送到实例"

不太确定我做错了什么.

我有一个脚本,允许您使用php创建一个Joomla帐户.这是它的样子:

     define( '_JEXEC', 1 );
     define('JPATH_BASE', dirname(__FILE__) );
     define( 'DS', DIRECTORY_SEPARATOR );
     /* Required Files */
     require_once ( JPATH_BASE .DS.'includes'.DS.'defines.php' );
     require_once ( JPATH_BASE .DS.'includes'.DS.'framework.php' );

     $app = JFactory::getApplication('site');
     $app->initialise();
     require_once(JPATH_BASE.DS.'components'.DS.'com_users'.DS.'models'.DS.'registration.php');

     $model = new UsersModelRegistration();
     jimport('joomla.mail.helper');
     jimport('joomla.user.helper');

     $username = $_GET['username'];
     $name = $_GET['name'];
     $email = $_GET['email'];
     $password = $_GET['password'];
     $data = array( 'username' => $username,
     'name' => $name,
     'email1' => $email,
     'password1' => $password, // First password field
     'password2' => $password, // Confirm password field
     'block' => 0 );
      echo …