- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch.
self.window = [[UIWindow alloc]initWithFrame:[[UIScreen mainScreen] bounds]];
UITabBarController *tabBarController = [[UITabBarController alloc] init];
ViewController *viewController = [[ViewController alloc] init];
UINavigationController *navigationbar = [[UINavigationController alloc]initWithRootViewController:viewController];
navigationbar.tabBarItem.title=@"首页"; //底部tabBar的标题
navigationbar.tabBarItem.image=[UIImage imageNamed:@"icon.bundle/home@2x.png"];//底部tabBar的默认图片
navigationbar.tabBarItem.selectedImage = [UIImage imageNamed:@"icon.bundle/home_selected@2x.png"];//底部tabBar的点击后显示的图片
UIViewController *viewcontroller2 = [[UIViewController alloc] init];
viewcontroller2.view.backgroundColor = [UIColor redColor];
viewcontroller2.tabBarItem.title =@"视频";
viewcontroller2.tabBarItem.image = [UIImage imageNamed:@"icon.bundle/video@2x.png"];
viewcontroller2.tabBarItem.selectedImage =[UIImage imageNamed:@"icon.bundle/video_selected_2x.png"];
UIViewController *viewcontroller3 = [[UIViewController alloc] init];
viewcontroller3.view.backgroundColor = [UIColor blueColor];
viewcontroller3.tabBarItem.title = @"推荐";
viewcontroller3.tabBarItem.image =[UIImage imageNamed:@"icon.bundle/like@2x.png"];
viewcontroller3.tabBarItem.selectedImage = [UIImage imageNamed:@"icon.bundle/like_selected@2x.png"];
UIViewController *viewcontroller4 = [[UIViewController alloc] init];
viewcontroller4.view.backgroundColor = [UIColor grayColor];
viewcontroller4.tabBarItem.title = @"我的";
viewcontroller4.tabBarItem.image =[UIImage imageNamed:@"icon.bundle/page@2x.png"];
viewcontroller4.tabBarItem.selectedImage = [UIImage imageNamed:@"icon.bundle/page_selected@2x.png"];
[tabBarController setViewControllers:@[navigationbar,viewcontroller2,viewcontroller3,viewcontroller4]];//将四个UIViewController装进UItabBarController只能够
self.window.rootViewController = tabBarController; //设置根视图显示器为当前的UITabBarController
[self.window makeKeyAndVisible ];
// self.window.backgroundColor = [UIColor greenColor];
return YES;
}
UIViewController 文件：
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
self.view.backgroundColor =[UIColor grayColor];
self.imageView = [[UIImageView alloc] initWithFrame:CGRectMake(50, 100, 150, 60)];
[self.imageView setImage:[UIImage imageNamed:@"icon.bundle/icon.png"]];
[self.view addSubview:self.imageView];
self.imageView.userInteractionEnabled = YES;//UIView的子控件需要打开用户交互，才能是点击手势生效
UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(pushController)];
[self.imageView addGestureRecognizer:tapGesture];
}
-(void)pushController{
NSLog(@"..");
UIViewController *viewcontroller = [[UIViewController alloc] init];
viewcontroller.view.backgroundColor = [UIColor whiteColor];
viewcontroller.navigationItem.title =@"详情页标题";
viewcontroller.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc]initWithImage:[UIImage imageNamed:@"icon.bundle/a2.png"] style:UIBarButtonItemStylePlain target:self action:nil];
// viewcontroller.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc]initWithTitle:@"右侧标题" style:UIBarButtonItemStylePlain target:self action:nil];
// 注意：rightBarButtonItem 系统没有提供同时展示ImageView 和Title的办法，只能显示一个，同时写两个的时候只会显示后面那个的
// 可以自定义一个Button 有图片和文字的控件.
// 再设置为使用自定义的控件：[[UIBarButtonItem alloc]initWithCustomView:Button
[self.navigationController pushViewController:viewcontroller animated:YES];
}
