modalPresentationStyle在iOS5的模态视图中不起作用

Question

我想在iOS5中使用UIView的presentModalViewController方法在iPad中显示一个弹出窗口。

即使我将modalPresentationStyle设置为UIModalPresentationFormSheet，它也只显示为全帧大小。

之前我在iOS4中使用了相同的代码，它可以显示为弹出窗口。如何在iOS5中修复它？

DetailViewController *d = [[DetailViewController alloc] initWithNibName:nil bundle:nil];
self.modalPresentationStyle = UIModalPresentationFormSheet;
[self presentModalViewController:d animated:YES];

感谢。

Answer 1

你试试吗

d.modalPresentationStyle = UIModalPresentationFormSheet;

而不是

self.modalPresentationStyle = UIModalPresentationFormSheet;

Answer 2

在iOS5中，模态视图应如下所示。

DetailViewController *d = [[DetailViewController alloc] initWithNibName:nil bundle:nil];
UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:d];

navigationController.modalPresentationStyle = UIModalPresentationFormSheet;
[self presentModalViewController:navigationController animated:YES];