我正在使用此代码:mediaLibraryPopover=[[UIPopoverControlleralloc]initWithContentViewController:avc];[self.mediaLibraryPopoverpresentPopoverFromRect:[theButtonbounds]inView:theButtonpermittedArrowDirections:UIPopoverArrowDirectionAnyanimated:YES];我在Xcode7中收到此警告:UIPopoverControllerisdeprecated,firstdepreca
