swift - loadViewIfNeeded before iOS 9 -

i need create , load uiviewcontroller before inserting subview uiviewcontroller.

in ios 9 mycontroller.loadviewifneeded(). workaround ios 8?

it seems mycontroller.view.hidden = mycontroller.view.hidden works seems dangerous hack.

there many ways in can force view controller load view. in fact, common way (as far know) access view property of view controller.

_ = viewcontroller.view 

i wouldn't treat hack. in fact, apple's documentation states accessing view property when equal nil results in loading requested view. means proposed solution safe , should work intended future releases of ios. apple's documentation:

the view stored in property represents root view view controller's view hierarchy. default value of property nil.

if access property , value nil, view controller automatically calls loadview method , returns resulting view.