当popover仍然可见时达到

Question

-(void)showsearch:(id)sender
{
    SearchViewController *searchview =[[SearchViewController alloc] initWithNibName:@"SearchViewController" bundle:nil];

    settingpopoverController = [[[UIPopoverController alloc] 
                                    initWithContentViewController:searchview] autorelease];               
    [searchview release];
    [settingpopoverController presentPopoverFromBarButtonItem:sender 
                                    permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];


}

当我点击按钮时,应用程序崩溃了,我收到了[UIPopoverController dealloc] reached while popover is still visible.消息.

Answer 1

这里有关于这个主题的一些很好的讨论:

UIPopoverController,UIActionSheet和模态视图控制器的保留/释放模式？

UIPopoverController和内存管理

它的要点是你需要:

• 将自动释放的popover分配给retain属性
• 在视图的dealloc中将属性设置为nil
• 以及在popoverControllerDidDismissPopover中将其设置为nil.

Answer 2

认为 autorelease 不正确，这是一个教程

http://www.jannisnikoy.nl/index.php/2010/04/ipad-tutorial-creating-a-popoverviewcontroller