如何重置UINavigationController？ [英] How do I reset a UINavigationController?

问题描述

我遇到了涉及UINavigationController的问题。

我有一个应用程序，它有三个视图控制器，我正在使用导航控制器推送和弹出功能切换。

问题是：
我站在第三个视图控制器中并调用

[self.navigationController popToRootViewControllerAnimated：YES ]。

这将我带到第一个视图控制器（这正是我想要的）但是当我尝试导航到第二个视图控制器时，由于某种原因，我最终会进入第三个视图控制器。

你有什么办法可以重置导航控制器，或者我这样做是错误的吗？

这是代码我正在使用推送和弹出导航控制器：

当用户决定启动摄像机时，在根视图控制器中调用以下代码。 / strong>

  if（self.cameraViewController == nil）
 {
 CollageCameraViewController * camView = [ [CollageCameraViewController alloc] init]; // WithNibName：nil bundle：[NSBundle mainBundle]]; 
 self.cameraViewController = camView; 
 [camView发布]; 
 
} 
 [self.navigationController pushViewController：self.cameraViewController animated：NO]; 
  

在用户拍摄照片后，从CollageCameraViewController（第二个）调用以下代码：

  if（self.renderView == nil）
 {
 CollageRenderViewController * renderViewController = [[CollageRenderViewController alloc] initWithNibName：nil bundle：[NSBundle mainBundle]]; 
 self.renderView = renderViewController; 
 [renderViewController release]; 
} 
 [self.navigationController pushViewController：self.renderView animated：YES]; 
  

当用户决定返回main（root）时，从CollageRenderViewController调用以下代码）查看：

  [self.navigationController popToRootViewControllerAnimated：YES]; 
  

现在，如果我再次尝试推送CollageCameraViewController，我最终会使用CollageRenderViewController，为什么会这样？ / p>

干杯，
Andreas

解决方案

我有几个风投在我移动到真正的主屏幕之前，在我的堆栈中作为设置屏幕。

我得到了这样的工作：

  HomeViewController * hvc = [[HomeViewController alloc] init]; 
 [self.navigationController pushViewController：hvc animated：YES]; 
 self.navigationController.viewControllers = [[NSArray alloc] initWithObjects：hvc，nil]; 
  

我按下HomeViewController，然后重写堆栈只有主屏幕。

I have a problem involving the UINavigationController.

I have a application that have three view controllers that I'm switching between using the navigation controllers push and pop functionality.

The problem is this: I stand in the third view controller and makes a call to
[self.navigationController popToRootViewControllerAnimated:YES];
this brings me to the first view controller (which is exactly what I want) but when I then try to navigate to the second view controller I end up in the third for some reason.

Is there any way you can reset the navigation controller, or am I doing this the wrong way?

Here is the code that I'm using to push and pop the navigation controller:

The following code is called in the root view controller when the user decides to launch the camera.

if(self.cameraViewController == nil)
{
        CollageCameraViewController *camView = [[CollageCameraViewController alloc] init];//WithNibName:nil bundle:[NSBundle mainBundle]];
        self.cameraViewController = camView;
        [camView release];

}
[self.navigationController pushViewController:self.cameraViewController animated:NO];

The following code is called from CollageCameraViewController (second) after the user has taken his fotos:

if(self.renderView == nil)
{
    CollageRenderViewController *renderViewController = [[CollageRenderViewController alloc] initWithNibName:nil bundle:[NSBundle mainBundle]];
    self.renderView = renderViewController;
    [renderViewController release];
}
[self.navigationController pushViewController:self.renderView animated:YES];

The following code is called from CollageRenderViewController when the user decides to go back to main (root) view:

[self.navigationController popToRootViewControllerAnimated:YES];

Now, if I try to push CollageCameraViewController again I end up in CollageRenderViewController instead, why is that?

Cheers, Andreas

解决方案

I have several VCs in my stack as set-up screens before I move to the true home screen.

I got mine to work like this:

HomeViewController *hvc = [[HomeViewController alloc] init];
[self.navigationController pushViewController:hvc animated:YES];
self.navigationController.viewControllers = [[NSArray alloc] initWithObjects:hvc, nil];

I push the HomeViewController and then rewrite the stack to only have the home screen.

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