在iPad上模拟呈现ModalViewController

Question

我在UISplitVC中为一个iPad应用程序从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];

如果您定位的是iOS5.0 +，则不需要进行此项检查，您只能使用presentViewController:animated:completion和dismissViewControllerAnimated:completion