首页 > 代码库 > UI: 使用 UITabBarController 显示多视图控制器
UI: 使用 UITabBarController 显示多视图控制器
假设有两个视图控制器,它们的分别为 FirstViewController 和 SecondViewControlller。 现在到 app delegate 中定义视图控制器和标签栏。代码如下:
.h:
#import <UIKit/UIKit.h>#import "FirstViewController.h"#import "SecondViewController.h"@interface AppDelegate : UIResponder <UIApplicationDelegate>@property (strong, nonatomic) UIWindow *window;@property (nonatomic ,strong) FirstViewController *firstViewController;@property (nonatomic ,strong) SecondViewController *secondViewController;@property (nonatomic ,strong) UITabBarController *tabBarControllser;@end
.m:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { // Override point for customization after application launch. self.window = [[UIWindow alloc]initWithFrame:[[UIScreen mainScreen]bounds]]; [self.window makeKeyAndVisible]; [self createViewControllers01]; return YES;}-(void)createViewControllers01{ //1 FirstViewController *firstVC = [[FirstViewController alloc]init]; UINavigationController *navfirst = [[UINavigationController alloc]initWithRootViewController:firstVC]; //2 SecondViewController *secondVC = [[SecondViewController alloc]init]; UINavigationController *navSecond = [[UINavigationController alloc]initWithRootViewController:secondVC]; //UINavigationController控制器数组 NSArray *arrayNav = [[NSArray alloc]initWithObjects:navfirst,navSecond, nil];/*************************/ UITabBarController *tbc = [[UITabBarController alloc]init]; tbc.viewControllers = arrayNav; self.window.rootViewController = tbc;}
如果视图多的时候,另一种方法:
- (void)createViewControllers02{ //视图数组 NSArray *arrayVC = [NSArray arrayWithObjects:@"firstVC",@"secondVC", nil]; //每个视图对应的颜色数组 NSArray *colorVC = [NSArray arrayWithObjects:[UIColor redColor],[UIColor blackColor], nil]; //每个视图对应的tabbar图片数组 NSArray *tabBarImageTitle = [NSArray arrayWithObjects:@"tabbar_first",@"tabbar_second", nil]; //每个视图对用的tabbar标题数组 NSArray *tabbarTitle = [NSArray arrayWithObjects:@"一",@"二", nil]; NSMutableArray *arrayTBC = [[NSMutableArray alloc]init]; for (int i =0; i<arrayVC.count; i++) { //将字符串转换为某个抽象类 Class cVC = NSClassFromString([arrayVC objectAtIndex:i]); //初始化后赋值给视图控制器对象 UIViewController *vc = [[cVC alloc]init]; //给视图控制器添加背景颜色 vc.view.backgroundColor = [colorVC objectAtIndex:i]; //初始化每个视图对应的tabBarItem并将其赋值给每个视图 UITabBarItem *tabBarItem = [[UITabBarItem alloc]initWithTitle:[tabbarTitle objectAtIndex:i] image:[UIImage imageNamed:[tabBarImageTitle objectAtIndex:i]] tag:i+100]; vc.tabBarItem = tabBarItem; //将每个视图加入视图控制器并存入数组 UINavigationController *nav = [[UINavigationController alloc]initWithRootViewController:vc]; [arrayTBC addObject:nav]; } //初始化UITabBarController并对其赋值 UITabBarController *tbc = [[UITabBarController alloc]init]; tbc.viewControllers = arrayTBC;}
UI: 使用 UITabBarController 显示多视图控制器
声明：以上内容来自用户投稿及互联网公开渠道收集整理发布，本网站不拥有所有权，未作人工编辑处理，也不承担相关法律责任，若内容有误或涉及侵权可进行投诉： 投诉/举报 工作人员会在5个工作日内联系你，一经查实，本站将立刻删除涉嫌侵权内容。