将视图切换到情节提要上的另一个视图

Question

我是 iOS 编程新手。

我想做的是：

我在情节提要中有一些视图，我想以编程方式在视图之间切换。比如，当一个按钮被点击时，我调用了一个方法，我想在这里改变视图（我可以成功调用该方法）。这些按钮也是以编程方式在不同位置创建的。

我已经搜索过，我认为 NavigationController 会发生这种情况。我有一个这样创建的导航控制器：菜单Editor -> Embed In -> NavigationController。我怎么能用这个NavigationController 做到这一点？

@Madhu 和@Dilip，我找到了xib 归档类的解决方案

icerik *secondViewController = [[icerik alloc] initWithNibName:@"icerik" bundle:nil];

    UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:secondViewController];
    navigationController.navigationBar.barStyle = UIBarStyleBlackTranslucent;
    navigationController.topViewController.title = @"SecondViewController";

    //[self presentModalViewController:navigationController  animated:YES];

    if([self respondsToSelector:@selector(presentViewController:animated:completion:)])
        [self presentViewController:navigationController animated:YES completion:^{/* done */}];
    else if([self respondsToSelector:@selector(presentViewController:animated:)])
        [self presentModalViewController:navigationController animated:YES];

我有一个名为icerik 的带有xib 文件的类，我是这样解决的。它正在开放，但当我想回头时，我该怎么办？

Answer 1

您可以使用以下代码创建 btn：

UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[button addTarget:self action:@selector(aMethod) forControlEvents:UIControlEventTouchDown];
[button setTitle:@"Show View" forState:UIControlStateNormal];
button.frame = CGRectMake(80.0, 210.0, 160.0, 40.0);
[self.view addSubview:button];

如果您想要导航栏，请使用此代码转到另一个 vc：

-(void)aMethod
{
SecondViewController *secondViewController = [[SecondViewController alloc] initWithNibName:@"SecondViewController" bundle:nil];

    UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:SecondViewController];
    navigationController.navigationBar.barStyle = UIBarStyleBlackTranslucent;
    navigationController.topViewController.title = @"SecondViewController";

    [self presentModalViewController:navigationController               animated:YES];
}

否则使用此代码：

-(void)aMethod
{
SecondViewController *secondViewController = [[SecondViewController alloc] initWithNibName:@"SecondViewController" bundle:nil];

    [self presentModalViewController:secondViewController            animated:YES];
}

然后从第二个 vc 回到第一个 vc，在第二个 vc 中添加此代码。

- (void)viewDidLoad
{
    [super viewDidLoad];

    UIBarButtonItem *closeButton = [[UIBarButtonItem alloc] initWithTitle:@"Back" style:UIBarButtonItemStyleBordered target:self action:@selector(backAction:)]; 
    self.navigationItem.leftBarButtonItem = closeButton;
}
- (void)backAction:(id)sender {
    [self dismissModalViewControllerAnimated:NO];
}

Answer 2

如果您是 Objective-c 的新手，请先使用 Views/ViewControllers。即使用UIView的addSubView属性

UIView *subView = [[UIView alloc] initWithFrame:CGRectMake(10, 0, 250.0, kCCCellHeaderHeight)];
[subView setBackgroundColor:[UIColor redcolor]];
[self.view addSubview:subView];

如果您对UINavigationCOntroller 知之甚少，请使用pushViewController

CCFilteredVideosController *filteredController = [[CCFilteredVideosController alloc] initWithNibName:@"CCFilteredVideosController" bundle:nil];
[self.navigationController pushViewController:filteredController animated:YES];
[filteredController release];