标签:ipa nbsp att rar sop popover 使用 ready ntp
在iPad下打开相冊或者拍照,假设使用 UIImagePickerController 打开相冊或者拍照,那必需要用到 UIPopoverController 去打开。
UIPopoverController *popover = [[UIPopoverController alloc] initWithContentViewController:picker]; self.popoverController = popover; [self.popoverController presentPopoverFromRect:CGRectMake(0, 0, 600, 800) inView:self.viewController.view permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
可是在iOS8的iPad环境下。却打不开相冊或者拍照,提演示样例如以下:
Warning: Attempt to present <UIImagePickerController: 0x7fb3d1167a00> on <CubeWebViewController: 0x7fb3d324ad20> which is already presenting (null)
解决方法例如以下:
[[NSOperationQueue mainQueue] addOperationWithBlock:^{ UIPopoverController *popover = [[UIPopoverController alloc] initWithContentViewController:picker]; self.popoverController = popover; [self.popoverController presentPopoverFromRect:CGRectMake(0, 0, 600, 800) inView:self.viewController.view permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES]; }];
參考:http://stackoverflow.com/questions/24942282/uiimagepickercontroller-not-presenting-in-ios-8
标签:ipa nbsp att rar sop popover 使用 ready ntp
原文地址:http://www.cnblogs.com/brucemengbm/p/6940216.html