解雇UIpopover [英] Dismissing a UIpopover

问题描述

如何从导航堆栈中解除弹出窗口。我有一个导航控制器作为弹出窗口的根控制器和堆栈中的2个taes vies。这样第一个表视图就会推动第二个，第二个应该忽略popover。虽然这似乎是错误的，但我可以将表格中的引用传递给popover。在浏览不同的控制器后解除弹出窗口的首选方法是什么？

How do you dismiss a popover from within a navigation stack. I have a navigation controller as the root controller of the popover and 2 taes vies in the stack. So that the first table view pushes the second and the second should dismiss the popover. I could pass a reference from table to table of the popover though this seems wrong. What is the preferred way of dismissing a popover after navigated through different controllers?

推荐答案

在你的appdelegate中，添加一个新的NSNotificationCenter观察者：

In your appdelegate, add a new NSNotificationCenter observer:

[[NSNotificationCenter defaultCenter] addObserver:self 
                                         selector:@selector(hidePopover)
                                             name:@"hidePopover" 
                                           object:nil];

完成设置后，在appdelegate中添加一个新方法，如下所示：

Once you have that setup, add a new method within the appdelegate like so:

-(void)hidePopover{
    [UIPopoverController dismissPopoverAnimated:YES];
}

这种方法很棒，因为现在你设置的东西可以关闭来自任何地方的popover。你这样做：

This approach is great, because now you have things set up in such a way that you can close the popover from anywhere. You do this like so:

[[NSNotificationCenter defaultCenter] postNotificationName:@"hidePopover" 
                                                    object:nil];

希望这能解决你的难题，

Hope this solves your conundrum,

Zane

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