コンテナコントローラを使用して他の2つのコントローラのview交換を制御

3つのUIDIewControllerのサブコントローラを構築し、そのうちの1つはルートコントローラであり、他の2つのコントローラのビューは切り替え対象とする.
AppDelegateのコード

//AppDelegate.h   

#import <UIKit/UIKit.h>



@interface AppDelegate : UIResponder <UIApplicationDelegate>



@property (retain, nonatomic) UIWindow *window;



@end

//AppDelegate.m   

ルートビューコントローラRootView Controlのコード

//RootViewController.h   

#import <UIKit/UIKit.h>



@interface RootViewController : UIViewController



@end

//RootViewController.m   

#import "RootViewController.h"

#import "BlueViewController.h"

#import "RedViewController.h"

@interface RootViewController ()

{

    BlueViewController *_blueview;

    RedViewController *_redview;

}

@end



@implementation RootViewController

-(void)dealloc

{

    [_blueview release];

    [_redview release];

    [super dealloc];

}

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

{

    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];

    if (self) {

        // Custom initialization

    }

    return self;

}

- (void)change:(UIButton *)button

{

    if (_blueview.view.superview !=nil) {

        [_blueview.view removeFromSuperview];

        [self.view addSubview:_redview.view];

    }else{

        [_redview.view removeFromSuperview];

        [self.view addSubview:_blueview.view];

    }

}



- (void)viewDidLoad

{

    [super viewDidLoad];

    //          

    _blueview = [[BlueViewController alloc] init];

    _blueview.view.frame = CGRectMake(0, 0, 320, 440);



    //       

    [self.view addSubview:_blueview.view];

    

    //         

    _redview = [[RedViewController alloc] init];

    _redview.view.frame = CGRectMake(0, 0, 320, 440);

//       

    [self.view addSubview:_redview.view];

    

    //                  

    UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];

    button.frame = CGRectMake(100, 440, 120, 40);

    [button setTitle:@"  " forState:UIControlStateNormal];

    button.backgroundColor = [UIColor blackColor];

    [button addTarget:self action:@selector(change:) forControlEvents:UIControlEventTouchUpInside];

    [self.view addSubview:button];

    // Do any additional setup after loading the view.

}



- (void)didReceiveMemoryWarning

{

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}



/*

#pragma mark - Navigation



// In a storyboard-based application, you will often want to do a little preparation before navigation

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender

{

    // Get the new view controller using [segue destinationViewController].

    // Pass the selected object to the new view controller.

}

*/



@end

BlueViewControlのコード

//BlueViewController.h   

#import <UIKit/UIKit.h>



@interface BlueViewController : UIViewController



@end

//BlueViewController.m   

#import "BlueViewController.h"



@interface BlueViewController ()



@end



@implementation BlueViewController



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

{

    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];

    if (self) {

        // Custom initialization

    }

    return self;

}



- (void)viewDidLoad

{

    [super viewDidLoad];

    self.view.backgroundColor = [UIColor blueColor];

    // Do any additional setup after loading the view.

}



- (void)didReceiveMemoryWarning

{

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}



/*

#pragma mark - Navigation



// In a storyboard-based application, you will often want to do a little preparation before navigation

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender

{

    // Get the new view controller using [segue destinationViewController].

    // Pass the selected object to the new view controller.

}

*/



@end

RedViewController

//RedViewController.h   

#import <UIKit/UIKit.h>



@interface RedViewController : UIViewController



@end

//RedViewController.m   

#import "RedViewController.h"



@interface RedViewController ()



@end



@implementation RedViewController



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

{

    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];

    if (self) {

        // Custom initialization

    }

    return self;

}



- (void)viewDidLoad

{

    [super viewDidLoad];

    self.view.backgroundColor = [UIColor redColor];

    // Do any additional setup after loading the view.

}



- (void)didReceiveMemoryWarning

{

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}



/*

#pragma mark - Navigation



// In a storyboard-based application, you will often want to do a little preparation before navigation

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender

{

    // Get the new view controller using [segue destinationViewController].

    // Pass the selected object to the new view controller.

}

*/



@end