APPDelegate:

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

? ? self.window = [[UIWindow alloc]initWithFrame:[UIScreen mainScreen].bounds];

? ? //創建主界面，導航欄的第一個頁面

? ? FirstViewController *fvc = [[FirstViewController alloc]init];

?? ?

? ? //創建一個導航欄控制器

? ? UINavigationController *nav = [[UINavigationController alloc]initWithRootViewController:fvc];

? ? nav.navigationBar.barTintColor = [UIColor redColor];

? ? self.window.rootViewController = nav;//設置根控制器

? ? [self.window makeKeyAndVisible];

? ? return YES;

}

?

//給導航欄添加左右按鈕

? ? UIBarButtonItem *cancelButton = [[UIBarButtonItem alloc]initWithTitle:@"cancel" style:UIBarButtonItemStyleDone target:nil action:nil];

? ? self.navigationItem.leftBarButtonItem = cancelButton;

? ? self.navigationItem.leftBarButtonItem.tintColor = [UIColor whiteColor];

?? ?

? ? UIBarButtonItem *nextButton = [[UIBarButtonItem alloc]initWithTitle:@"next" style:UIBarButtonItemStyleDone target:self action:@selector(goToSecond)];

? ? self.navigationItem.rightBarButtonItem = nextButton ;

? ? self.navigationItem.rightBarButtonItem.tintColor = [UIColor whiteColor];

?? ?

? ? UILabel *yLabel = [[UILabel alloc]initWithFrame:CGRectMake(0, 0, 100, 44)];

? ? yLabel.backgroundColor = [UIColor yellowColor];

? ? yLabel.text = @"新浪";

? ? yLabel.font = [UIFont systemFontOfSize:22];

? ? yLabel.textColor = [UIColor redColor];

? ? yLabel.textAlignment = NSTextAlignmentCenter;

? ? self.navigationItem.titleView = yLabel;

-(void)goToSecond{

? ? //創建即將顯示的界面

? ? SecondViewController *svc = [[SecondViewController alloc]init];

? ? //使用導航欄控制器切換頁面

//? ? [self.navigationController presentViewController:svc animated:YES completion:nil];

? ? //push入棧 將當前的界面入棧，這個界面消失，將新的界面推送出來

? ? //pop 將當前的界面消失，從棧上最上面的界面（最后一個界面）出棧

? ? //設置默認提供的返回按鈕的標題

? ? UIBarButtonItem *backItem = [[UIBarButtonItem alloc]initWithTitle:@"返回" style:UIBarButtonItemStyleDone target:nil action:nil];

? ? self.navigationItem.backBarButtonItem = backItem; ?

? ? [self.navigationController showViewController:svc sender:self];

}

?

-(void)viewWillAppear:(BOOL)animated{

? ? [super viewWillAppear:animated];

? ? //顯示工具欄

? ? self.navigationController.toolbarHidden = NO;

? ? self.navigationController.toolbar.barTintColor = [UIColor greenColor];

? ? //默認工具欄高44，導航欄高44

? ? //可以隱藏導航欄

//? ? self.navigationController.navigationBarHidden = YES;

}

?SecondViewController類.m

-(void)viewDidLoad{

? ? [super viewDidLoad];

? ? UIButton *btn = [UIButton buttonWithType:UIButtonTypeRoundedRect];

? ? [btn setTitle:@"back" forState:UIControlStateNormal];

? ? btn.frame = CGRectMake(100, 200, 120, 50);

? ? [btn addTarget:self action:@selector(goback) forControlEvents:UIControlEventTouchUpInside];

? ? btn.tintColor = [UIColor whiteColor];

? ? [self.view addSubview:btn];

}

-(void)goback{

?? ? //present 在現有的界面上蓋上一層，dismissViewController刪除

? ? //如果之前使用 的push 那么用pop

? ? [self.navigationController popViewControllerAnimated:YES];

? ? [self dismissViewControllerAnimated:YES completion:nil];

}

?

拓：navigationbar 上加多個button：

UIView *rightBarView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, 60, 31)];UIButton *phonebutton = [UIButton buttonWithType:UIButtonTypeCustom];phonebutton.frame=CGRectMake(0, 5, 25, 25);[phonebutton setImage:[UIImage imageNamed:@"phone.png"] forState:UIControlStateNormal];[phonebutton addTarget:self action:@selector(phoneclick)forControlEvents:UIControlEventTouchDown];[rightBarView addSubview:phonebutton];UIButton *mapbutton = [UIButton buttonWithType:UIButtonTypeCustom];[mapbutton setFrame:CGRectMake(30, 5, 25, 25)];[mapbutton setImage:[UIImage imageNamed:@"c_address.png"] forState:UIControlStateNormal];[mapbutton addTarget:self action:@selector(mapclick)forControlEvents:UIControlEventTouchDown];[rightBarView addSubview:phonebutton];[rightBarView addSubview:mapbutton];rightBarView.backgroundColor=[UIColor clearColor];UIBarButtonItem *rightBtn = [[UIBarButtonItem alloc]initWithCustomView:rightBarView];self.navigationItem.rightBarButtonItem = rightBtn;

?更簡便的方法：

轉載于:https://www.cnblogs.com/yangqinglong/p/5363708.html

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