Swift IOS - Using UIPickerView AND Keyboard -

in app when user clicks on uitextfield should able pick value uipickerview or enter own value using keyboard.

what's best way of doing in terms of user experience , ease of implementation?

uipickerview toolbar implemented.

i'd appreciate both advice on best way of doing , example code of switching keyboard <-> pickerview.

i've tried adding button "show keyboard" on pickerview's toolbar , adding following code:

func showkeyboard() {     selectedtextfield.inputview = nil } 

but clicking button doesn't anything. i'm not sure it's way in terms of ux.

here's solution:

var usekeyboard:bool = true func showkeyboard() {     if usekeyboard {         usekeyboard = false         selectedtextfield.inputview = nil         selectedtextfield.reloadinputviews()         selectedtextfield.keyboardappearance = uikeyboardappearance.default         selectedtextfield.keyboardtype = uikeyboardtype.default     } else {         usekeyboard = true         selectedtextfield.inputview = nil         selectedtextfield.reloadinputviews()         createpicker(selectedtextfield)         selectedtextfield.resignfirstresponder()         selectedtextfield.becomefirstresponder()     } }  // that's custom picker - adjust whatever need func createpicker(sender: uitextfield){     selectedtextfield = sender      // create picker view     var newpickerview: uipickerview     newpickerview = uipickerview(frame: cgrectmake(0, 200, view.frame.width, 300))     newpickerview.backgroundcolor = .whitecolor()      // uipickerview     newpickerview.showsselectionindicator = true     newpickerview.delegate = self     newpickerview.datasource = self      // create toolbar     var toolbar = uitoolbar()     toolbar.barstyle = uibarstyle.default     toolbar.translucent = true     toolbar.tintcolor = uicolor(red: 76/255, green: 217/255, blue: 100/255, alpha: 1)     toolbar.sizetofit()      // create buttons     var donebutton = uibarbuttonitem(title: "done", style: uibarbuttonitemstyle.plain, target: self, action: "donepicker")     var spacebutton = uibarbuttonitem(barbuttonsystemitem: uibarbuttonsystemitem.flexiblespace, target: nil, action: nil)     var cancelbutton = uibarbuttonitem(title: "cancel", style: uibarbuttonitemstyle.plain, target: self, action: "cancelpicker")     var custombutton = uibarbuttonitem(title: "keyboard", style: uibarbuttonitemstyle.plain, target: self, action: "showkeyboard")      // assign buttons toolbar     toolbar.setitems([cancelbutton, spacebutton, custombutton, donebutton], animated: false)     toolbar.userinteractionenabled = true      // add pickerview , toolbar textfield     sender.inputview = newpickerview     sender.inputaccessoryview = toolbar } func donepicker() {     usekeyboard = true     selectedtextfield.resignfirstresponder() } func cancelpicker() {     usekeyboard = true     selectedtextfield.resignfirstresponder() }