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NavigationController pushViewController不起作用

[英]NavigationController pushViewController doesn't work

 GetNeedItemsViewController *getNeedItemsViewController = [[GetNeedItemsViewController alloc] initWithNibName:@"GetNeedItemsViewController" bundle:nil];
 [self.navigationController pushViewController:getNeedItemsViewController animated:YES];

在此处输入图片说明

I dont know why the getNeedItemsViewController doesn't displayed. 我不知道为什么不显示getNeedItemsViewController。

Help me with this, thank you in advance! 帮帮我,谢谢你!

Have you added content on the GetNeedItemsViewController ? 您是否在GetNeedItemsViewController上添加了内容? From the image it looks like it is added but that it is empty. 从图像中看起来像它已添加,但是它是空的。 And at the moment you have a memory leak. 目前,您存在内存泄漏。 One option is to auto-release it the controller. 一种选择是auto-release控制器。

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