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IOS开发(11)之UITabBarController多视图控制器

时间:11-08 关键字:ios 来源:www.huanju.org

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:

 

[plain]
#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 

#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

@endZYViewController.m:


[plain]
@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]; 

@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:


[plain]
- (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; 

- (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:


[plain]
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil 

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

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

    }
    return self;
}
运行结果:

 

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当单击Second时候:

 

 

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