ios - 在 iPad 上以模态方式呈现 ModalViewController

Question

我从 iPad 应用程序的 UISplitVC 中的 MasterViewController 调用此代码:

-(void)viewWillAppear:(BOOL)animated{
//PRESENT MODALVC
ModalViewController *modalVC = [[ModalViewController alloc] initWithNibName:@"ModalViewController" bundle:nil];
[self setModalPresentationStyle:UIModalPresentationFullScreen];
[self presentModalViewController:modalVC animated:YES];

但它不起作用。没有出现 ModalVC。

Answer 1

试试这段代码:

ModalViewController *modalVC = [[ModalViewController alloc] initWithNibName:@"ModalViewController" bundle:nil];
[modalVC setModalPresentationStyle:UIModalPresentationFullScreen]; //You set the presentation style of the controller that would be presented, not the presenting controller
//This check is needed, because presentModalViewController:animated is depreciated in iOS5.0 and presentViewController:animated:completion must be used instead. The same is valid for dismissModalViewControllerAnimated and dismissViewControllerAnimated:completion
if([self respondsToSelector:@selector(presentViewController:animated:completion:)])
    [self presentViewController:modalVC animated:YES completion:nil];
else
    [self presentModalViewController:modalVC animated:YES];

如果您的目标是 iOS5.0+，则不需要进行此检查，您应该仅使用 presentViewController:animated:completion 和 dismissViewControllerAnimated:completion