Question

我有一个很大的问题：在方法didSelectRowAtIndexPath上我总是得到null.navigationController.I有一个基于SplitViewController的项目，我想在详细的TableView中选择一行时推送另一个视图。

架构：

LoginView->SplitViewController->Master
                               ->Detail->AnotherView

我的AppDelegate.m：加载登录表单

 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{   

    // Initialize the app window
    self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];

    AuthentificationViewController *authentificationViewController =[[AuthentificationViewController alloc] initWithNibName:@"AuthentificationView" bundle:nil];
    self.window.rootViewController=authentificationViewController;

    [authentificationViewController setModalTransitionStyle:UIModalTransitionStylePartialCurl];
    [self.splitViewController presentModalViewController:authentificationViewController animated:YES];

    [self.window makeKeyAndVisible];

    return YES;
}

AppDelagate的内部界面我有这些属性：

@property (nonatomic, retain) IBOutlet UISplitViewController *splitViewController;

@property (nonatomic, retain) IBOutlet UINavigationController *navController;

方法句柄当我们点击登录表单上的取消按钮

时

- (IBAction)btnCancel:(id)sender {

   AppDelegate* app_delegate=[[UIApplication sharedApplication] delegate];
    //self.window = [[UIApplication sharedApplication] keyWindow];
    app_delegate.window.rootViewController= app_delegate.splitViewController;

}

当我们选择一行时，我们有这个方法：

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{

      if([indexPath row] == 0)
            {

                // show add bookmark controller

                BookmarkEditorController* bookmarkEditorController = [[[BookmarkEditorController alloc] initWithBookmark:[[ComputerBookmark alloc] initWithBaseDefaultParameters]] autorelease];

                [bookmarkEditorController setTitle:NSLocalizedString(@"Ajouter Connexion", @"Add Connection title")];
                [self.navigationController pushViewController:bookmarkEditorController animated:YES];

}

但是当我选择一行并且navigationController为零时没有任何事情发生，请问我该如何解决？

提前致谢

编辑：

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
      UIViewController *localdetailViewController =nil;
       if([indexPath row] == 0)
        {

            // show add bookmark controller

            BookmarkEditorController* bookmarkEditorController = [[[BookmarkEditorController alloc] initWithBookmark:[[ComputerBookmark alloc] initWithBaseDefaultParameters]] autorelease];

            [bookmarkEditorController setTitle:NSLocalizedString(@"Ajouter Connexion", @"Add Connection title")];

            localdetailViewController=bookmarkEditorController;
             AppDelegate *delegate =[[UIApplication sharedApplication] delegate];

            NSArray *viewControllers=[[NSArray alloc] initWithObjects: [delegate.splitViewController.viewControllers objectAtIndex:0],bookmarkEditorController,nil];
            delegate.splitViewController.viewControllers=viewControllers;



        }


}

Answer 1

看看这个Link ，

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {   
UIViewController* myVCToReplace = nil;
  if(indexPath.row == 1)
       myVCToReplace = [myVC1 alloc]init];
  else
       myVCToReplace = [myVC2 alloc]init]; 

  NSMutableArray* array = [[NSMutableArray alloc] initWithArray:MySplitVC.viewControllers];
      [arr replaceObjectAtIndex:1 withObject:myReplacementVC];
      MySplitVC.viewControllers = arr;
      [arr release];

Answer 2

关注此链接http://www.cimgf.com/2010/05/24/fixing-the-uisplitviewcontroller-template/我认为它可能会对您有所帮助

从详细视图推送另一个视图

2 个答案: