Question

此项目的标签栏未显示，而只是显示黑屏。此标签栏在app delegate中的应用程序启动时以实用方式输入。

main_tab=[[UITabBarController alloc]init];
viewcontroller = [[HomeViewController alloc]init];
viewcontroller.title =@"Home";
UINavigationController *nav =[[UINavigationController alloc]initWithRootViewController:viewcontroller];

viewcontroller1 = [[SearchViewController alloc]init];
viewcontroller1.title =@"Search";
UINavigationController *nav1 =[[UINavigationController alloc]initWithRootViewController:viewcontroller1];


tabs_array=[[NSArray alloc]initWithObjects:nav,nav1, nil];
main_tab.viewControllers=tabs_array;
[self.window addSubview:main_tab.view];
[self.window makeKeyAndVisible];

return YES;

Answer 1

尝试替换此行

   [self.window addSubview:main_tab.view];

有了这个

    self.window.rootViewController = main_tab;

标签栏没有出现

1 个答案: