Detecting screen transition (switching) globally in iOS with Swift -


i wondering if there way detect screen switching globally in app, e.g. application delegate? know there methods ismovingfromparentviewcontroller() , ismovingtoparentviewcontroller(), can used locally. info helpful, thanks!

kristian

if going use global uinavigationcontroller rootviewcontroller uiwindow in appdelegate in following way.

let navigationcontroller:uinavigationcontroller = uinavigationcontroller(rootviewcontroller: viewcontroller()) navigationcontroller.delegate = self  window = uiwindow(frame: uiscreen.main.bounds) window?.rootviewcontroller = navigationcontroller window?.makekeyandvisible()

then following delegate methods in uinavigationcontrollerdelegate work in appdelegate

func navigationcontroller(_ navigationcontroller: uinavigationcontroller, didshow viewcontroller: uiviewcontroller, animated: bool) {  }  func navigationcontroller(_ navigationcontroller: uinavigationcontroller, willshow viewcontroller: uiviewcontroller, animated: bool) {  }

the above functions when new uiviewcontroller shows in uinavigationcontroller. unfortunately, there no such methods related uiwindow observe changes. please let me know if helps.


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