SWRevealViewController - 手动切换到另一个视图？

Question

我有一个用 SWRevealViewController 制作的侧边栏菜单。

侧边栏中的菜单元素之一是“登录”。它会打开登录视图（通过自定义 SWRevealViewController segue）。

我想在用户成功登录后以编程方式切换到另一个视图。我该怎么做？

更新，我的代码：

ViewController *vc = [[ViewController alloc] init]; // this is main front ViewController
SWRevealViewController *revealController = self.revealViewController;
[revealController setFrontViewController:vc animated:YES];

在此之后，我得到的只是空白屏幕。我究竟做错了什么？我觉得这是错误的：

ViewController *vc = [[ViewController alloc] init];

那么访问已加载的视图控制器的正确方法是什么？ （它在应用启动时由 SWRevealViewController 作为前端控制器加载）

Answer 1

使用 - (void)setFrontViewController:(UIViewController *)frontViewController animated:(BOOL)animated;方法

SWRevealController 有它自己的属性，您可以从任何 UIViewController 访问：

SWRevealViewController *revealController = self.revealViewController;

您可以在其 GitHub 存储库中查看示例项目： https://github.com/John-Lluch/SWRevealViewController

Answer 2

试试这个：

ViewController *vc = [[ViewController alloc] init]; // this is main front ViewController
UINavigationController* navController = (UINavigationController*)self.revealViewController.frontViewController;
[navController setViewControllers: @[vc] animated: YES];
// [navController pushViewController:vc animated:YES]; // use this if you want to stack the views
[self.revealViewController setFrontViewPosition: FrontViewPositionLeft animated: YES];

Answer 3

试试这个：

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
SecondViewController *rootViewController = [storyboard instantiateViewControllerWithIdentifier:@"SecondViewController"];

UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:rootViewController];
[navController setViewControllers: @[rootViewController] animated: YES];

[self.revealViewController setFrontViewController:navController];
[self.revealViewController setFrontViewPosition: FrontViewPositionLeft animated: YES];

为我工作:-)

Answer 4

有一个新的 API - (void)pushFrontViewController:(UIViewController *)frontViewController animated:(BOOL)animated;

据我所知，这是手动在视图控制器之间正确切换动画的最优雅的方式。

// get the view controller you want to push to properly.
// in this case, I get it from Main.storyboard
UIStoryboard *sb = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
UIViewController * vc = [sb instantiateViewControllerWithIdentifier:@"SignInViewController"];

UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:vc];

[navController setViewControllers: @[vc] animated:NO];
[self.revealViewController pushFrontViewController:navController animated:YES];

如果您在不导入SWRevealViewController 的目标vc 中并想推回：

// get your vc properly
[self.navigationController setViewControllers:@[vc] animated:YES];

请注意[self.navigationController showViewController:vc sender:self]; 的结果相同，但不要使用它，因为这会在导航堆栈上创建一个新的视图控制器，这在使用SWRevealViewController 时基本上没有意义。

Answer 5

这个很适合我

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
ViewController *rootViewController = [storyboard instantiateViewControllerWithIdentifier:@"ViewController"];

UINavigationController *navController = [storyboard instantiateViewControllerWithIdentifier:@"NavController"];
[navController setViewControllers: @[rootViewController] animated: YES];

[self.revealViewController setFrontViewController:navController];
[self.revealViewController setFrontViewPosition: FrontViewPositionLeft animated: YES];

Answer 6

这里是 setFrontViewController 解决方案的 Swift 版本：

if let secondViewController = self.storyboard?.instantiateViewControllerWithIdentifier("SecondViewControllerStoryBoardID") as? SecondViewController {
  let navController = UINavigationController(rootViewController: secondViewController)
  navController.setViewControllers([secondViewController], animated:true)
  self.revealViewController().setFrontViewController(navController, animated: true)
} 

Answer 7

@Evana 有一个很好的答案，但是对于我将参数传递给 destViewController 的情况，我需要改进它，如下所示。通过完全按照她的示例，我注意到 DestViewController viewDidLoad 被调用了两次。首先在'selectedId'上使用0，只有第二次调用'selectedId'正在接收我的标签值。

因此，为了更干净的导航，必须从navController中获取DestViewController，这样就没有多余的调用了。

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];

UINavigationController *navController = [storyboard instantiateViewControllerWithIdentifier:@"DestNavController"];

DestViewController *destViewController = (DestViewController*)[[navController viewControllers] objectAtIndex:0];

destViewController.selectedId = ((UIButton*)sender).tag;

[self.revealViewController setFrontViewController:navController];