UIPopoverController没有在iOS iOS 8中展示 [英] UIPopoverController not presenting in iPad iOS 8

问题描述

我在iOS 8 iPad中使用 UIPopoverController imagepicker .Its在iOS 7中工作但在iOS 8中没有。弹出窗口没有显示，并立即调用 popoverControllerDidDismissPopover 。请建议一个解决方案..
这里的代码使用：

I am using UIPopoverController in iOS 8 iPad for imagepicker.Its working in iOS 7 but not in iOS 8.The popover is not displayed and popoverControllerDidDismissPopover is called immediately.Please suggest a solution.. Here the code am using:

UIPopoverController *popVC= [[UIPopoverController alloc] initWithContentViewController:pickerController];
_pop = popVC;
_pop.delegate = self;
[_pop presentPopoverFromRect:attachBtnFrame inView:_sender permittedArrowDirections:UIPopoverArrowDirectionAny animated:NO];

谢谢..

推荐答案

终于找到了解决方案：
在主线程中显示Popover，如下所示。

Finally found the solution: Present the Popover in main thread as below.

if([[[UIDevice currentDevice] systemVersion] floatValue]>=8.0)
{
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
      [_pop presentPopoverFromRect:attachBtnFrame inView:_sender permittedArrowDirections:UIPopoverArrowDirectionUp animated:NO];
    });
}

这篇关于UIPopoverController没有在iOS iOS 8中展示的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！