一、项目结构
一开始创建一个空的项目
二、主要代码
1、AppDelegate.m
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
self.window=[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
UITabBarController*tabBarController =[[UITabBarController alloc] init];
FirstViewController*one =[[FirstViewController alloc] init];
one.title=@"联系人";
one.tabBarItem= [[UITabBarItem alloc] initWithTabBarSystemItem:UITabBarSystemItemContacts tag:0];
UINavigationController*navFirst =[[UINavigationController alloc] initWithRootViewController:one];
[tabBarController addChildViewController:navFirst];
SecondViewController*two =[[SecondViewController alloc] init];
two.title=@"收藏";
two.tabBarItem= [[UITabBarItem alloc] initWithTabBarSystemItem:UITabBarSystemItemFavorites tag:1];
UINavigationController*navSecond =[[UINavigationController alloc] initWithRootViewController:two];
[tabBarController addChildViewController:navSecond];
self.window.rootViewController=tabBarController;
self.window.backgroundColor=[UIColor whiteColor];
[self.window makeKeyAndVisible];returnYES;
}
2、FirstViewController.m
- (void)viewDidLoad
{
[super viewDidLoad];
UIBarButtonItem*rightButton =[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(selectRightAction:)];
self.navigationItem.rightBarButtonItem=rightButton;
}-(void)selectRightAction:(id)sender
{
ChildViewController*childViewController;
childViewController=[[ChildViewController alloc] initWithNibName:@"ChildViewController"bundle:nil];
childViewController.title=@"添加联系人";
[self.navigationController pushViewController:childViewController animated:YES];
}
3、SecondViewController.m
默认内容
4、ChildViewController.m
默认内容
三、运行效果
1、初始界面
2、进入第一个视图的子视图
3、切换到第二个视图