[IOS学习笔记] UINavigationController Demo

//AppDelegate.m


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

    // Override point for customization after application launch.

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

    

    self.window.backgroundColor=[UIColor whiteColor];

    

    RootViewController *rootView=[[RootViewController alloc]init];

    

    UINavigationController *nav = [[UINavigationController alloc]initWithRootViewController:rootView];

    

    [_window setRootViewController:nav];

    

    [nav release];

    [rootView release];

    

    

    return YES;

}

 

//RootViewController.m



- (void)viewDidLoad {

    // Do any additional setup after loading the view.

    [super viewDidLoad];

    // Do any additional setup after loading the view.

    [self.navigationController.navigationBar setTranslucent:NO];//设置navigationbar的半透明

    

    self.title = @"RootViewController";//设置navigationbar上显示的标题

    

    [self.navigationController.navigationBar setBarTintColor:[UIColor purpleColor]];//设置navigationbar的颜色

    

    self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonItemStyleDone target:self action:Nil];//设置navigationbar左边按钮

    

    self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonItemStylePlain target:self action:Nil];//设置navigationbar右边按钮

    

    [self.navigationController.navigationBar setTintColor:[UIColor whiteColor]];//设置navigationbar上左右按钮字体颜色

    

     //self.navigationItem.rightBarButtonItem setTarget:<#(id)#>

    //动态添加一个按钮

    

 

    UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];

    

    button.frame = CGRectMake(0, 300, 300, 50);

    

    [button setTitle:@"新添加的动态按钮" forState: UIControlStateNormal];

    

    button.backgroundColor = [UIColor clearColor];

    

    button.tag = 2000;

    

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

    

    [self.view addSubview:button];

    

}



- (void)clicked:(id) sender{

    SecondViewController *second = [[SecondViewController alloc]init];

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

    //second.str = @"hello!!";

    [second release];

}

//这个是新按钮的响应函数

-(IBAction) buttonClicked:(id)sender {

    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"提示"

                                                    message:@"单击了动态按钮！"

                                                   delegate:self

                                          cancelButtonTitle:@"确定"

                                          otherButtonTitles:nil];

    [alert show];

    [alert release];

}

UINavigationController 导航页

设置根界面： 
　　UINavigationController *nav = [[UINavigationController alloc]initWithRootViewController:rootView];

按钮响应：

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

　　响应方法签名：- (void)clicked:(id) sender