ios uitabbarcontroller之间怎么跳转

ios uitabbarcontroller之间怎么跳转
** iOS

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