Open view controller with same tab from tabbed app

Question

I have a tabbed app , In storyboard I have 4 screens Changing from one tab to another it works . I have for example on tab 2 a collection view . I want on item click to open a View controller for witch I ve made separate file (there are many screens and i chose for detail views to do separate xibs ) I ve tried with self.navigationcontroller pushvc but it does not open a new page , the view does not change.

Answer 1

Is the viewController in tab 2 (the viewController that holds the collectionView) embedded in a UINavigationController ?

If not, self.navigationController will return nil.

To embed a viewController in a navigation context, choose Editor > Embed in > NavigationController when the viewController is selected in IB

Answer 2

您需要嵌入UINavigationCtrl或添加带有过渡的子视图才能实现此功能。