How can I pop a view from a UINavigationController and replace it with another in one operation?

Question

I have an application where I need to remove one view from the stack of a UINavigationController and replace it with another. The situation is that the first view creates an

Answer 1

Alternatively,

You can use category to avoid self.navigationController to be nil after popViewControllerAnimated

just pop and push, it's easy to understand, don't need to access viewControllers....

// UINavigationController+Helper.h
@interface UINavigationController (Helper)

- (UIViewController*) popThenPushViewController:(UIViewController *)viewController animated:(BOOL)animated;

@end


// UINavigationController+Helper.m
@implementation UINavigationController (Helper)

- (UIViewController*) popThenPushViewController:(UIViewController *)viewController animated:(BOOL)animated
{
    UIViewController *v =[self popViewControllerAnimated:NO];

    [self pushViewController:viewController animated:animated];

    return v;
}
@end

In your ViewController

// #import "UINavigationController+Helper.h"
// invoke in your code
UIViewController *v= [[MyNewViewController alloc] init];

[self.navigationController popThenPushViewController:v animated:YES];

RELEASE_SAFELY(v);