解除显示的视图控制器后推视图控制器 [英] push view controller after dismissing presented view controller

问题描述

我有这个导航堆栈

RootVC ---> VC1 - >（呈现） - > ModalVC

我有 VC2 （不在导航堆栈中）。

and I have VC2 (not in navigation stack).

当呈现 ModalVC ，我想单击我的ModalVC中的按钮以关闭ModalVC，然后在 VC1 后一键将 VC2 推入导航堆栈。它应该如下所示：

When presenting ModalVC, I want to click on button in my ModalVC to dismiss ModalVC, then push VC2 into the navigation stack after VC1 at one click. It should look like this:

RootVC ---> VC1 ---> VC2

我尝试了很多方法来实现它，但是当我返回 RootVC 时，只推动事件触发。

I tried a lot of methods to make it, but pushing event fire only, when I return to my RootVC.

I试图与代表进行交流：

I tried to make it with delegates:

点击 ModalVC ：

[self dismissViewControllerAnimated:YES completion:^{
   if ([self.delegate respondsToSelector:@selector(dismissAndPush:)]) {
       [self.delegate performSelector:@selector(dismissAndPush:) withObject:VC2];
   }
}];

VC1 ：

- (void)dismissAndPush:(UIViewController *)vc {
    [self.navigationController pushViewController:vc animated:NO];

}

请帮助理解此行为。我的错误在哪里？

Please help to understand this behavior. Where is my mistake?

推荐答案

错误已经出现在其他地方。如果我正确理解：在解除呈现的视图控制器之前的一些动画是阻止导航堆栈中的动画。我用两种方法解决了这个问题：

Error has been in other. If Im right understand: some animations before dismissing presented view controller are blocking animations in navigation stack. I solved this problem with 2 ways:

1）在解雇前删除或设置正确的动画

1) deleteting or set right animations before dismissing

2）使用导航控制器中的setViewControllers（我选择它）

2) use setViewControllers in navigation controller (I select it)

- (void)dismissAndPush:(UIViewController *)vc {
    [self dismissViewControllerAnimated:NO completion:^{
        NSMutableArray *mutableControllers = [NSMutableArray arrayWithArray:self.navigationController.viewControllers];
        NSArray *controllers = [mutableControllers arrayByAddingObject:vc];
        [self.navigationController setViewControllers:controllers animated:NO];
    }];

}

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