ios8中用于iphone的UIPopoverController显示白屏 [英] UIPopoverController for iphone in ios8 shows white screen

问题描述

在iphone中使用ios8.0下的UIPopovercontroller正常使用此代码。但是在ios8中它显示白屏。

Using UIPopovercontroller below ios8.0 in iphone working fine with this code. But in ios8 it display white screen.

代码：

pickerController = [[UIViewController alloc] init];
UIView *viewV = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 150, 160)];
[viewV setBackgroundColor:[UIColor clearColor]];
popOverController = [[UIPopoverController alloc] initWithContentViewController:pickerController];
popOverController.popoverContentSize = CGSizeMake(150, 160);
[popOverController setDelegate:self];

CGRect ImageBtnFrame = [self.view convertRect:sender.frame fromView:self.view];       
[popOverController presentPopoverFromRect:ImageBtnFrame inView:self.view permittedArrowDirections:UIPopoverArrowDirectionUp animated:YES];

ios8的替代方案，需要建议。

Any alternative for ios8, need suggestion.

推荐答案

尝试使用新的iOS 8 API进行弹出窗口。

Try to use the new iOS 8 API for popovers.

pickerController = [[UIViewController alloc] init];
UIView *viewV = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 150, 160)];
[viewV setBackgroundColor:[UIColor clearColor]];

UIPopoverPresentationController *popOverController = pickerController .popoverPresentationController;
popOverController.popoverContentSize = CGSizeMake(150, 160);
[popOverController setDelegate:self];

popOverController.sourceView = self.view;
popOverController.sourceRect = sender.frame;
popOverController.permittedArrowDirections = UIPopoverArrowDirectionUp;

[self presentViewController:popOverController
                     animated:YES
                   completion:nil];

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