OC 导航控制器

关键代码：

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

    // Override point for customization after application launch.

    

    self.window=[[UIWindowalloc]initWithFrame:[[UIScreenmainScreen]bounds]];

    

    ViewController *pVCtrl=[[ViewControlleralloc]init];

    

    UINavigationController *pNgCtrl=[[UINavigationControlleralloc]initWithRootViewController:pVCtrl];

    

    [self.windowsetRootViewController:pNgCtrl];

    

    [self.windowmakeKeyAndVisible];

    

    return YES;

}

ViewControl 代码

-(void)clickBtn:(UIButton*)sender{

    SencondViewController *pSCtrl=[[SencondViewControlleralloc]init];

    

    [self.navigationControllerpushViewController:pSCtrl animated:YES];

    

}

SeccondViewControl 代码

-(void)hidden:(UIButton *)sender{

    [self.navigationControllerpopToRootViewControllerAnimated:YES];

}

关于导航器中应用工具栏案例

//

//  SencondViewController.m

//  NavigationDemo

//

//  Created by ganzhou on 16/3/3.

//  Copyright © 2016年 ganzhou. All rights reserved.

//

#import "SencondViewController.h"

@interface SencondViewController ()

@end

static int flag=1;

@implementation SencondViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view.

    

    

    UIView *pView=[[UIView alloc]initWithFrame:CGRectMake(0, 0, 320, 480)];

    

    pView.backgroundColor=[UIColor greenColor];

    

    

//    UIButton *pBtn=[UIButton buttonWithType:UIButtonTypeRoundedRect];

//    

//    pBtn.frame=CGRectMake(100, 200, 120, 50);

//    pBtn.backgroundColor=[UIColor redColor];

//    [pBtn setTitle:@"HiddenOrShow" forState:UIControlStateNormal];

//    [pBtn addTarget:self action:@selector(hidden:) forControlEvents:UIControlEventTouchUpInside];

//    [pView addSubview:pBtn];

    

    UIButton *push=[UIButton buttonWithType:UIButtonTypeRoundedRect];

    push.frame=CGRectMake(100, 150, 120, 50);

    push.backgroundColor=[UIColor redColor];

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

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

    [pView addSubview:push];

    

    UIButton *pop=[UIButton buttonWithType:UIButtonTypeRoundedRect];

    pop.backgroundColor=[UIColor redColor];

    pop.frame=CGRectMake(100, 300, 120, 50);

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

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

    [pView addSubview:pop];

    

    UIBarButtonItem *left=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemBookmarks target:self action:@selector(study)];

    self.navigationItem.leftBarButtonItem=left;

    

    

    UIButton *rightBtn=[UIButton buttonWithType:UIButtonTypeRoundedRect];

    rightBtn.backgroundColor=[UIColor redColor];

    rightBtn.frame=CGRectMake(0, 0, 60, 30);

    [rightBtn setTitle:@"学习" forState:UIControlStateNormal];

    [rightBtn addTarget:self action:@selector(sheet) forControlEvents:UIControlEventTouchUpInside];

    

    UIBarButtonItem *right=[[UIBarButtonItem alloc]initWithCustomView:rightBtn];

    

    self.navigationItem.rightBarButtonItem=right;

    

    

    UIView *pTitle=[[UIView alloc]initWithFrame:CGRectMake(0, 0, 100, 30)];

    pTitle.backgroundColor=[UIColor orangeColor];

    

    self.navigationItem.titleView=pTitle;

    

    

    self.view=pView;

    

    self.flag=flag++;

    

    self.title=[NSString stringWithFormat:@"tile : %d",self.flag];

    

//    UIButton *btn1=[UIButton buttonWithType:UIButtonTypeRoundedRect];

//    btn1.backgroundColor=[UIColor redColor];

//    [btn1 setTitle:@"" forState:<#(UIControlState)#>]

    

    UIBarButtonItem *save=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemSave target:nil action:nil];

    

    UIBarButtonItem *edit=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemEdit target:nil action:nil];

    

     UIBarButtonItem *add=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:nil action:nil];

    

    UIBarButtonItem *cancel=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemCancel target:nil action:nil];

    

     UIBarButtonItem *done=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:nil action:nil];

    

    UIBarButtonItem *reply=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemReply target:nil action:nil];

    

    UIBarButtonItem *action=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemAction target:nil action:nil];

    

    UIBarButtonItem *flexibleSpace=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];

    

     UIBarButtonItem *fixedSpace=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil action:nil];

    

    UIView *my=[[UIView alloc]initWithFrame:CGRectMake(0, 0, 100, 40)];

    my.backgroundColor=[UIColor blueColor];

    

    UIBarButtonItem *myItem=[[UIBarButtonItem alloc]initWithCustomView:my];

    

    

//    NSArray *items=@[save,fixedSpace,edit,flexibleSpace,add,flexibleSpace,cancel];//,cancel,done,reply,action];

    

    NSArray *items=@[save,edit,add,myItem];

    

//    UIToolbar *toolBar=[[UIToolbar alloc]initWithFrame:CGRectMake(0, 436, 320, 44)];

//    toolBar.backgroundColor=[UIColor orangeColor];

//    [toolBar setItems:items animated:YES];

//    [self.view addSubview:toolBar];

    

    [self.navigationController setToolbarHidden:NO];

    [self setToolbarItems:items animated:YES];

}

-(void)study{

    UIAlertView *alert=[[UIAlertView alloc]initWithTitle:@"恭喜" message:@"早生贵子" delegate:nil cancelButtonTitle:@"关闭" otherButtonTitles:@"其他", nil];

    [alert show];

}

-(void)sheet{

    UIActionSheet *pAction=[[UIActionSheet alloc]initWithTitle:@"恭喜" delegate:nil cancelButtonTitle:@"关闭" destructiveButtonTitle:@"哈哈" otherButtonTitles:@"其他", nil];

    [pAction showInView:self.view];

}

-(void)push:(UIButton *)sender{

    SencondViewController *pSVCtrl=[[SencondViewController alloc]init];

    [self.navigationController pushViewController:pSVCtrl animated:YES];

}

-(void)pop:(UIButton *)sender{

//    [self.navigationController popViewControllerAnimated:YES];

     [self.navigationController popToRootViewControllerAnimated:YES];

}

-(void)viewWillAppear:(BOOL)animated{

    [super viewWillAppear:animated];

//    [self.navigationController setToolbarHidden:NO animated:YES];

//    [self.navigationController setNavigationBarHidden:NO animated:YES];

}

-(void)hidden:(UIButton *)sender{

    [self.navigationController popToRootViewControllerAnimated:YES];

//    [self.navigationController popToRootViewControllerAnimated:YES];

}

- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

-(void)dealloc{

    NSLog(@"ctrol flag = %d",self.flag );

}

/*

#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