iPad 模态表单视图不

Question

我在didSelectRowAtIndex 中使用此代码。在我的 iPhone 上它推送一个视图，在 iPad 上我希望它在一个小弹出窗口中呈现一个视图模式。出于某种原因，在我的 iPad 上它以模态显示，但它仍然是全屏而不是一个小的模态弹出窗口。所以 if 语句是有效的，我使用类似的东西在别处展示导航控制器，它工作正常。

有什么想法吗？

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    if (NSClassFromString(@"UISplitViewController") != nil && UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) 
    {
        DetailViewController *detailViewController = [[DetailViewController alloc] initWithNibName:@"DetailViewController" bundle:nil];
        self.navigationController.modalTransitionStyle = UIModalTransitionStyleCoverVertical;
        self.navigationController.modalPresentationStyle = UIModalPresentationFormSheet;
        [self.navigationController presentModalViewController:detailViewController animated:YES];
        [detailViewController release];
    }
    else 
    {
        DetailViewController *detailViewController = [[DetailViewController alloc] initWithNibName:@"DetailViewController" bundle:nil];
        [self.navigationController pushViewController:detailViewController animated:YES];
        [detailViewController release];
    }
}

Answer 1

您在错误的对象上设置了 modalTransitionStyle 和 modalPresentationStyle。您应该将它们都设置在 detailViewController 而不是 self.navigationController 上。

编辑：这里是完整的代码以及作为完成按钮的导航栏，它将关闭模式视图：

DetailViewController *detailViewController = [[DetailViewController alloc] initWithNibName:@"DetailViewController" bundle:nil];

UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:detailViewController];
navController.modalTransitionStyle = UIModalTransitionStyleCoverVertical;
navController.modalPresentationStyle = UIModalPresentationFormSheet;

UIBarButtonItem *doneBarButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone
                                                                               target:self
                                                                               action:@selector(modalViewDone)];
detailViewController.navigationItem.rightBarButtonItem = doneBarButton;
detailViewController.navigationItem.title = @"Details";
[doneBarButton release];

[self.navigationController presentModalViewController:navController animated:YES];
[detailViewController release];
[navController release];

而你需要实现这个方法：

- (void)modalViewDone
{
    [self.navigationController dismissModalViewControllerAnimated:YES];
}