ios - 如何将另一个 UIViewController 添加到现有的 UINavigationController

Question

我有一个带有两个 View Controller 的应用程序。第一个嵌入在导航 Controller 中并有一个导航栏，在第一个 View Controller 中的某个方法结束后，我以编程方式呈现第二个 View Controller 。这工作正常，但这样第二个 View Controller 不是导航 Controller 堆栈的一部分，并且与第一个 View Controller 没有任何关系。像这样，我无法利用导航 Controller 。关于如何解决这个问题的任何想法？

在用户从照片库中选取图像后，我向第二个 View Controller 显示此代码:

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
  pickedImage = [info objectForKey:@"UIImagePickerControllerOriginalImage"];
  [self dismissViewControllerAnimated:YES completion:NULL];
  UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
  ViewController *viewController = (ViewController *)[storyboard instantiateViewControllerWithIdentifier:@"viewControllerID"];
  viewController.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
  [self presentViewController:viewController animated:YES completion:nil];
}

Answer 1

而不是

[self presentViewController:viewController animated:YES completion:nil];

使用

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

这样VC2也在同一个导航栈中

您的最终代码如下所示:

- (void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { 
    UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil]; 
    ViewController *viewController = (ViewController *)[storyboard instantiateViewControllerWithIdentifier:@"viewControllerID"];    
    viewController.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
    [self.navigationController pushViewController:viewController animated:YES];
}