objective c - custom search bar using UISearchController in iOS 8 -

i have custom search bar class, , used interface builder insert search bar instance of custom class. how use search bar search bar uisearchcontroller? searchbar property read-only can't assign search bar it.

you have set initialized custom search bar returned in overriden search bar getter custom uisearchcontroller class , setup properties after searchcontroller init, way uisearchcontroller functionality retained:

public class dsearchcontroller: uisearchcontroller {      private var customsearchbar = dsearchbar()     override public var searchbar: uisearchbar {         {             return customsearchbar         }     }      required public init?(coder adecoder: nscoder) {         super.init(coder: adecoder)     }     override init(nibname nibnameornil: string?, bundle nibbundleornil: nsbundle?) {         super.init(nibname: nibnameornil, bundle: nibbundleornil)     }     public init(searchresultscontroller: uiviewcontroller?,                 searchresultsupdater: uisearchresultsupdating?,                 delegate: uisearchcontrollerdelegate?,                 dimsbackgroundduringpresentation: bool,                 hidesnavigationbarduringpresentation: bool,                 searchbardelegate: uisearchbardelegate?,                 searchbarframe: cgrect?,                 searchbarstyle: uisearchbarstyle,                 searchbarplaceholder: string,                 searchbarfont: uifont?,                 searchbartextcolor: uicolor?,                 searchbarbartintcolor: uicolor?, // bar background                 searchbartintcolor: uicolor) { // cursor , bottom line          super.init(searchresultscontroller: searchresultscontroller)          self.searchresultsupdater = searchresultsupdater         self.delegate = delegate         self.dimsbackgroundduringpresentation = dimsbackgroundduringpresentation         self.hidesnavigationbarduringpresentation = hidesnavigationbarduringpresentation                  customsearchbar.setup(searchbardelegate,                               frame: searchbarframe,                               barstyle: searchbarstyle,                               placeholder: searchbarplaceholder,                               font: searchbarfont,                               textcolor: searchbartextcolor,                               bartintcolor: searchbarbartintcolor,                               tintcolor: searchbartintcolor)      } } 

and custom searchbar:

public class dsearchbar: uisearchbar {      var preferredfont: uifont?     var preferredtextcolor: uicolor?      init(){         super.init(frame: cgrect.zero)     }      func setup(delegate: uisearchbardelegate?,                frame: cgrect?,                barstyle: uisearchbarstyle,                placeholder: string,                font: uifont?,                textcolor: uicolor?,                bartintcolor: uicolor?,                tintcolor: uicolor?) {          self.delegate = delegate         self.frame = frame ?? self.frame         self.searchbarstyle = searchbarstyle         self.placeholder = placeholder         self.preferredfont = font         self.preferredtextcolor = textcolor         self.bartintcolor = bartintcolor ?? self.bartintcolor         self.tintcolor = tintcolor ?? self.tintcolor         self.bottomlinecolor = tintcolor ?? uicolor.clearcolor()          sizetofit()          //        translucent = false         //        showsbookmarkbutton = false         //        showscancelbutton = true         //        setshowscancelbutton(false, animated: false)         //        customsearchbar.backgroundimage = uiimage()     }      required public init?(coder adecoder: nscoder) {         super.init(coder: adecoder)     }       let bottomline = cashapelayer()     var bottomlinecolor = uicolor.clearcolor()      override public func layoutsubviews() {         super.layoutsubviews()          view in subviews {             if let searchfield = view as? uitextfield { setsearchfieldappearance(searchfield); break }             else {                 sview in view.subviews {                     if let searchfield = sview as? uitextfield { setsearchfieldappearance(searchfield); break }                 }             }         }          bottomline.path = uibezierpath(rect: cgrectmake(0.0, frame.size.height - 1, frame.size.width, 1.0)).cgpath         bottomline.fillcolor = bottomlinecolor.cgcolor         layer.addsublayer(bottomline)     }      func setsearchfieldappearance(searchfield: uitextfield) {         searchfield.frame = cgrectmake(5.0, 5.0, frame.size.width - 10.0, frame.size.height - 10.0)         searchfield.font = preferredfont ?? searchfield.font         searchfield.textcolor = preferredtextcolor ?? searchfield.textcolor         //searchfield.backgroundcolor = uicolor.clearcolor()         //backgroundimage = uiimage()     }  } 

init example:

searchcontroller = dsearchcontroller(searchresultscontroller: ls,                                      searchresultsupdater: self,                                      delegate: self,                                      dimsbackgroundduringpresentation: true,                                      hidesnavigationbarduringpresentation: true,                                      searchbardelegate: ls,                                      searchbarframe: cgrectmake(0.0, 0.0, screen_width, 44.0),                                      searchbarstyle: .minimal,                                      searchbarplaceholder: nslocalizedstring("search location...", comment: ""),                                      searchbarfont: nil,                                      searchbartextcolor: nil,                                      searchbarbartintcolor: uicolor.whitecolor(),                                      searchbartintcolor: iconscolor) searchcontroller.searchbar.keyboardappearance = .dark definespresentationcontext = true tableview.tableheaderview = searchcontroller.searchbar