//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
