UINavigationController---导航控制器

#import "AppDelegate.h"

#import "JRViewController.h"

@interface AppDelegate ()

@end

@implementation AppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

    

    //创建视图控制器

    JRViewController * vc=[[JRViewControlleralloc]init];

    vc.view.backgroundColor=[UIColorredColor];

    

    

    //创建导航控制器，并且将上面的的控制器作为根控制器

    UINavigationController * naVC=[[UINavigationControlleralloc]initWithRootViewController:vc];

    //将当前的导航控制器设置为跟控制器

    self.window.rootViewController=naVC;

    

    

    

    return YES;

}

@end

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#import "JRViewController.h"

#import "SecondViewController.h"

@interface JRViewController ()

@end

@implementation JRViewController

- (void)viewDidLoad {

    [superviewDidLoad];

    

    self.view.backgroundColor=[UIColorredColor];

   self.title=@"第一页";

    

    

   UIButton * button=[[UIButtonalloc]initWithFrame:CGRectMake(0,0, 100, 45)];

    

    button.backgroundColor=[UIColorblackColor];

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

    button.center=self.view.center;

    

    [button addTarget:selfaction:@selector(pushVC)forControlEvents:UIControlEventTouchUpInside];

    

    [self.viewaddSubview:button];

    

    

    

    // Do any additional setup after loading the view.

}

- (void) pushVC

{

    SecondViewController * sec=[[SecondViewControlleralloc]init];

    [self.navigationControllerpushViewController:sec animated:YES];

}

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#import "SecondViewController.h"

#import "JRViewController.h"

#import "ThirdViewController.h"

@interface SecondViewController ()

@end

@implementation SecondViewController

- (void)viewDidLoad {

    [superviewDidLoad];

    

    self.view.backgroundColor=[UIColoryellowColor];

   self.title=@"第二页";

    

    

   UIButton * button1=[[UIButtonalloc]initWithFrame:CGRectMake(0,0, 100, 45)];

    

    button1.backgroundColor=[UIColorblackColor];

    //压栈---下一页

    [button1 setTitle:@"push"forState:UIControlStateNormal];

    button1.center=self.view.center;

    [button1 addTarget:selfaction:@selector(pushVC)forControlEvents:UIControlEventTouchUpInside];

    [self.viewaddSubview:button1];

    

    

   UIButton * button2=[[UIButtonalloc]initWithFrame:CGRectMake(0,0, 100, 45)];

    

    button2.backgroundColor=[UIColorblackColor];

    

    //出栈---上一页

    [button2 setTitle:@"pop"forState:UIControlStateNormal];

   CGRect rect=button1.frame;

    rect.origin.y-=60;

    button2.frame=rect;

    [button2 addTarget:selfaction:@selector(popVC)forControlEvents:UIControlEventTouchUpInside];

    [self.viewaddSubview:button2];

    

    

    

}

- (void) pushVC

{

    ThirdViewController * third=[[ThirdViewControlleralloc]init];

    [self.navigationControllerpushViewController:third animated:YES];

}

- (void) popVC

{

    [self.navigationControllerpopViewControllerAnimated:YES];

}

@end

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#import "ThirdViewController.h"

#import "ForthViewController.h"

@interface ThirdViewController ()

@end

@implementation ThirdViewController

- (void)viewDidLoad {

    

        [superviewDidLoad];

        

        self.view.backgroundColor=[UIColorpurpleColor];

       self.title=@"第三页";

        

        

       UIButton * button1=[[UIButtonalloc]initWithFrame:CGRectMake(0,0, 100, 45)];

        

        button1.backgroundColor=[UIColorblackColor];

        //压栈---下一页

        [button1 setTitle:@"push"forState:UIControlStateNormal];

        button1.center=self.view.center;

        [button1 addTarget:selfaction:@selector(pushVC)forControlEvents:UIControlEventTouchUpInside];

        [self.viewaddSubview:button1];

        

       UIButton * button2=[[UIButtonalloc]initWithFrame:CGRectMake(0,0, 100, 45)];

        button2.backgroundColor=[UIColorblackColor];

        

        //出栈---上一页

        [button2 setTitle:@"pop"forState:UIControlStateNormal];

       CGRect rect=button1.frame;

        rect.origin.y-=60;

        button2.frame=rect;

        [button2 addTarget:selfaction:@selector(popVC)forControlEvents:UIControlEventTouchUpInside];

        [self.viewaddSubview:button2];

        

        

        

        

    }

    

    - (void) pushVC

    {

        ForthViewController * forth=[[ForthViewControlleralloc]init];

        [self.navigationControllerpushViewController:forth animated:YES];

    }

    

    

    - (void) popVC

    {

        [self.navigationControllerpopViewControllerAnimated:YES];

    }

@end

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