UIPopoverController 在“点击关闭"时关闭 - 如何检测此事件? [英] UIPopoverController dismiss on 'tap off' - how do I detect this event?

问题描述

我在导航栏上使用了 UIPopover.我有几个 UIBarButtonItems，弹出框从其中一个扩展而来.

I am using a UIPopover on my navigation bar. I have several UIBarButtonItems and the popover extends from one of these.

当 popOver 被激活时，我将按钮的样式更改为 UIBarButtonItemStyleDone.

When the popOver is activated I changed the style of the button to UIBarButtonItemStyleDone.

但是，通过按预期点击 UIPopoverController 来关闭 popOver，但在此之后我想将样式更改回 UIBarButtonItemStyleBordered.

However, the popOver is dismissed by tapping off the UIPopoverController as expected, but upon this I want to change the style back to UIBarButtonItemStyleBordered.

有什么方法可以检测到 UIPopOverController 是否正在关闭?因此，根据我自己的需要搭载它?

Is there a way I can detect if the UIPopOverController is closing? And therefore piggyback this for my own needs?

推荐答案

实施 -popoverControllerDidDismissPopover: 方法在你的 UIPopoverControllerDelegate 中，你应该能够做些什么你需要在那里做.

Implement the -popoverControllerDidDismissPopover: method in your UIPopoverControllerDelegate and you should be able to do what you need to do in there.

- (void) popoverControllerDidDismissPopover:(UIPopoverController *) popoverController {
   //do stuff here...
}

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