ios - UISearchControllerDelegate - Search bar not visible in table header -

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my uitableviewcontroller conforming new uisearchcontrollerdelegate , uisearchresultsupdating.

here setup code search bar:

override func viewdidload() {     var searchcontroller = uisearchcontroller(searchresultscontroller: self)     searchcontroller.searchresultsupdater = self     self.tableview.tableheaderview = searchcontroller.searchbar     self.definespresentationcontext = true }

however, when running in simulator there no search bar in table header, though specified in code. tried code in viewwillappear, again no search bar shown.

i informed apple engineer must give search bar frame. if print frame of search bar, notice it's height zero. bug in apple's code.

searchcontroller.searchbar = cgrectmake(0.0, 0.0, 320.0, 44.0)

edit:

the documentation specifies must pass in view controller want display results. display in same view controller in, pass in nil.

var searchcontroller = uisearchcontroller(searchresultscontroller: nil)

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