IOS开发（11）之UITabBarController多视图控制器

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1 前言

UITabBarController为多视图控制器，可以切换不同视图，今天我们来学习一下其简单用法。

2 代码实例

ZYViewController.h:

#import <UIKit/UIKit.h>
#import "ZYFirstViewController.h"
#import "ZYSecondViewController.h"@interface ZYViewController : UIViewController@property(nonatomic,strong) ZYFirstViewController *firstViewController;//第一个视图@property(nonatomic,strong) ZYSecondViewController *secondViewController;//第二个视图@property(nonatomic,strong) UITabBarController *taBarController;//多视图控制器@property (strong,nonatomic) UINavigationController *firstnavigationController;//第一个视图导航栏@property (strong,nonatomic) UINavigationController *secondnavigationController;//第二个视图导航栏@end

ZYViewController.m:

@synthesize firstViewController;
@synthesize secondViewController;
@synthesize taBarController;
@synthesize firstnavigationController;
@synthesize secondnavigationController;- (void)viewDidLoad
{[super viewDidLoad];// Do any additional setup after loading the view, typically from a nib.self.title = @"UITabBarControllerTest";self.firstViewController = [[ZYFirstViewController alloc] initWithNibName:nil bundle:nil];firstnavigationController = [[UINavigationController alloc] initWithRootViewController:firstViewController];self.secondViewController = [[ZYSecondViewController alloc] initWithNibName:nil bundle:nil];secondnavigationController = [[UINavigationController alloc] initWithRootViewController:secondViewController];NSArray *twoViewControllers = [[NSArray alloc] initWithObjects:firstnavigationController,secondnavigationController, nil];//实例化视图数组self.taBarController = [[UITabBarController alloc] init];[self.taBarController setViewControllers:twoViewControllers];[self.view addSubview:taBarController.view];
}

ZYFirstViewController.m:

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];if (self) {//由于多视图控制器加载时候不会加载非首页面，所以把初始化放在该方法中self.title = @"First";//设置标题，并会自动赋给多视图控制器按钮self.tabBarItem.image = [UIImage imageNamed:@"first.png"];//添加图片self.view.backgroundColor = [UIColor whiteColor];}return self;
}

ZYSecondViewController.m:

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];if (self) {// Custom initializationself.title = @"Second";self.tabBarItem.image = [UIImage imageNamed:@"second.png"];self.view.backgroundColor = [UIColor whiteColor];}return self;
}

运行结果：