如何关闭2个模态视图控制器？ [英] How to Dismiss 2 Modal View Controllers in Succession?

问题描述

我有2个视图控制器以模态方式呈现。

I have 2 view controllers presented modally.

A presents B which presents C.

当我关闭CI时也想关闭B。但我不知道该怎么做：

When I dismiss C I would like to dismiss B as well. But I am not sure how to do this:

关闭C：

[self dismissModalViewControllerAnimated:YES]
//[delegate dismissB] //this doesn't work either when i create a delegate pattern

现在我离开了B.如何从C中删除B？

Now I am left with B. How can I dismiss B from C?

推荐答案

尝试使用B中的下一个代码（在解除C之后，就像你已经做的那样）：

Try using the next code in B (right after dismissing C, as you already do):

[self.parentViewController dismissModalViewControllerAnimated:YES];

重要：

方法中的任何内容在此行后面。

此视图控制器（B）可能会被释放并释放...

IMPORTANT:
Don't do anything in the method after this line.
This view controller (B) probably will be released and deallocated...

：

从iOS7开始，不推荐使用上述方法。

改用下一种方法：

UPDATE:
Starting from iOS7 the method above is deprecated.
Use the next method instead:

[self.parentViewController dismissViewControllerAnimated:YES completion:^{ /* do something when the animation is completed */ }];

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