UIViewController尝试以模态呈现

Question

Trying to present UIViewController modally but it is working with only pushviewconttoller statement only.

 [navigationController pushViewController:_viewController animated:YES];

With presentModalViewController statement it shows only navigationbar that is it not done button not even UIView

[navigationController presentModalViewController:self.viewController animated:YES];

Why is that?

Answer 1

I think you should not try to present a view modally by specifying the navigation controller as its parent. Try and present the view modally as an offshoot of your actual controller:

[myCtrl presentModalViewController:...];

I don't know in which context you are calling presentModalViewController ; anyway, depending on the context, myCtrl could be self , or if you want that the modal view appear no matter which view controller is actually displayed you could try with:

[navigationController.topViewController presentModalViewController:...];