ios - Changing label text to what user inputs into UITextField -


this basic question i'm not sure problem is. i'm trying make simple "hello world" program user inputs want textfield , whatever enter goes label. however, nothing seems happening , i'm unsure why since push function worked how expected to. 

import uikit  class viewcontroller: uiviewcontroller {     @iboutlet var popup: uitextfield!     @iboutlet weak var helloworld: uilabel!      @ibaction func push(_ sender: uibutton) {         popup.ishidden = false         popup.text = "hello world"     }      @ibaction func send(_ sender: uitextfield) {         helloworld.text = sender.text     } }

based on code provided, func send unknown me, whether or not firing. func send might called, might not, either way, strange see _ sender: uitextfield ibaction.

what event firing related uitextfield? trying update helloworld uilabel user types in uitextfield?

to update uilabel whatever has been typed in uitextfield, need uibutton touch inside ibaction. think can delete ibaction func send completely, unless trying update uilabel user types in uitextfield. make sure remove ibaction outlet storyboard if correct point.

based on code provided push func not set text in uilabel. assuming push uibutton touch inside ibaction. can set helloworld uilabel text, in func push, not need use sender of event, try , see helloworld uilabel text populated:

@ibaction func push(_ sender: uibutton) {      //popup.ishidden = false //why doing this? uitextfield popup should visible if typing text it, code superfluous value of popup.ishidden false     helloworld.text = popup.text     popup.text = "hello world" }

if trying have uilabel display text type uitextfield should clarify question. , if case need make uiviewcontroller uitextfielddelegate


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