Question

ios 怎么样让view跳转到tabbar视图控制器

Answer 1

1.导航类型 UINavigationController 适用于父子页面的跳转 UITabBarController 适用于平级页面的跳转 2.presentViewController / dismissViewControllerAnimated和pushViewController / popViewController (1)只有从UINavigationController导航过来的UIViewController 才可以使用pushViewController / popViewController，从其它导航进入的只能使用presentViewController / dismissViewControllerAnimated (2)如果A界面是通过presentViewController进入的，那么在A界面里只能使用presentViewController导航，如果A界面是通过UINavigationController包装了一层进入，则可使用pushViewController导航。 (3)如果A界面是一个UITabBarController，进入时是通过presentViewController来导航的，那么子Tab里也只能通过presentViewController来导航，如果进入时是通过UINavigationController包装了一层进入，则可使用[self.tabBarController.navigationController pushViewController:abcdViewController animated:true];这种方式导航。 3.修改UINavigationController导航进入后导航栏的图标及文字 UIBarButtonItem* leftBar = [[UIBarButtonItem alloc]initWithTitle:@"返回" style:UIBarButtonItemStylePlain target:self action:@selector(homeBack)]; self.navigationItem.leftBarButtonItem = leftBar; //可添加多个导航按钮 // self.navigationItem.leftBarButtonItems = nil; //同样右边的导航按钮也可以设置 4.创建UITabBarController时需注意，要先创建出来，然后通过UINavigationController包装后才能显示，否则tab子项不显示。创建格式如下 Java代码 TabOneViewController* oneVC = [[TabOneViewController alloc]init]; oneVC.view.backgroundColor = [UIColor whiteColor]; UITabBarItem* item1 = [[UITabBarItem alloc]initWithTitle:@"tab1" image:nil tag:0]; oneVC.tabBarItem = item1; TabTwoViewController* twoVC = [[TabTwoViewController alloc]init]; UITabBarItem* item2 = [[UITabBarItem alloc]initWithTitle:@"tab2" image:nil tag:1]; twoVC.tabBarItem = item2; HomeViewController* homeVC = [[HomeViewController alloc]init]; NSArray* array = [[NSArray alloc]initWithObjects:oneVC,twoVC, nil]; homeVC.viewControllers = array; UINavigationController* navVC = [[UINavigationController alloc]initWithRootViewController:homeVC]; [self presentViewController:navVC animated:YES completion:^{}]; //下面这种创建了HomeViewController后，HomeViewController下的子Tab不能通过push或者pop导航 // HomeViewController* homeVC = [[HomeViewController alloc]init]; // [self presentViewController:homeVC animated:YES completion:^{}]; 5.UITabBarController各页面之间的切换 实现UITabBarControllerDelegate协议 //实现协议方法，用于切换Tab时，更改页面的标题 -(void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController { NSInteger index = tabBarController.selectedIndex; NSString *title; switch (index) { case 0: title = @"Message"; break; case 1: title = @"User List"; break; } self.title

Answer 2

首先要明确tabbar视图控制器是否为根控制器？

• 如果是则销毁当前viewController(有多级界面一并销毁)

• 否则presentViewController或者pushViewController跳转到tabbar视图控制器即可

• 此时注意，如果tabbar视图控制器是在Storyboard时，首先在Storyboard中修改TabBarcontroller的storyboardID为tabBar(可自定义)，然后以下代码即可获得你要的TabBarController
  UIStoryboard *story=[UIStoryboard storyboardWithName:@"Main" bundle:nil];
  UITabBarController *controller=[story instantiateViewControllerWithIdentifier:@"tabBar"]; 
  

Answer 3

首先，你显示View肯定有个ViewController
然后通过这个ViewController来presentViewController一个UITabbarViewController；
如果你的ViewController上有navigationController就可以Push一个UITabbarViewController。

Answer 4

[[UIApplication sharedApplication].keyWindow.rootViewController presentViewController:timeVc animated:YES completion:^{

WZPLog(@"展示完毕");

}];
timeVc是看你跳到哪个控制器哈