Question

我有一个由标签栏制作的x-code项目。在AppDelegate.m我为每个视图创建了三个按钮：

self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
UIViewController *viewController1 = [[[FirstViewController alloc] initWithNibName:@"FirstViewController" bundle:nil] autorelease];
UIViewController *viewController2 = [[[SecondViewController alloc] initWithNibName:@"SecondViewController" bundle:nil] autorelease];
UIViewController *viewController3=[[[ThirdViewController alloc]initWithNibName:@"ThirdViewController" bundle:nil]autorelease];
self.tabBarController = [[[UITabBarController alloc] init] autorelease];
self.tabBarController.viewControllers = @[viewController1, viewController2,viewController3];
self.window.rootViewController = self.tabBarController;
[self.window makeKeyAndVisible];
return YES;

当我在第一个视图时，我想创建一个调用另一个视图的按钮：

-(IBAction)btnPush{
 [[self navigationController] pushViewController:newView animated:YES];
}

但是当新视图出现时，它会覆盖按钮上的标签栏。我该怎么做才能解决问题？

Answer 1

而不是在UIViewController中添加UITabBarController，而是添加UINavigationController，如下所示

UIViewController *viewController1 = [[[FirstViewController alloc] initWithNibName:@"FirstViewController" bundle:nil] autorelease];
UIViewController *viewController2 = [[[SecondViewController alloc] initWithNibName:@"SecondViewController" bundle:nil] autorelease];
UIViewController *viewController3=[[[ThirdViewController alloc]initWithNibName:@"ThirdViewController" bundle:nil]autorelease];

现在将ViewController添加到NavigationController

UINavigationController *navController1 = [[UINavigationController alloc] initWithRootViewController:viewController1];
UINavigationController *navController2 = [[UINavigationController alloc] initWithRootViewController:viewController2];
UINavigationController *navController3 = [[UINavigationController alloc] initWithRootViewController:viewController3];

self.tabBarController.viewControllers = @[navController1, navController2,navController3];

它将在TabBarController中添加导航控制器

在标签栏项目中添加视图 - xcode

1 个答案: