Question

我有一个带有Single＜code＞UIViewController的View应用程序UITableViewController，并尝试通过按下UIViewController（我的主视图）中的按钮来显示UITableViewController。我的按键（IBAction）包含以下代码，我正试图通过这些代码推送我的UITableViewController视图并显示它：

DataViewController *dataController = [[DataViewController alloc] initWithNibName: @"DataViewController" bundle:nil];
[self.navigationController pushViewController:dataController animated:YES];
[dataController release];

My DataViewController is not at all getting pushed into the stack and displayed, Also I have checked that in the code above, self.navigationController=nil Probably this is the source of the problem. If so, how to rectify it?

请帮忙。

Answer 1

UINavigationController *navCtrlr = [[UINavigationController alloc]initWithRootViewController:yourfirstviewController];
[self.window setRootViewController:navCtrlr];
navCtrlr.delegate = self;
navCtrlr.navigationBarHidden = YES;

在appdelegate.m中创建导航控制器，然后您可以导航到任何uiviewcontroller

Answer 2

您需要实际创建一个＜code＞UINavigationController＜/code＞。导航控制器属性告诉您的DataViewController当前是否位于UINavigationController的层次结构中；如果不是（在本例中），navigationController属性将返回nil。

友情链接