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Questions tagged [first-responder]

In Apple Cocoa programing, the first responder is the first object in a chain of NSResponder subclasses to be called upon receiving an even such as keypress, mouseclick, etc.

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Questions about setting the First Responder in Xcode

I'm just reading Apples' developer document of Xcode (http://developer.apple.com/library/mac/#documentation/ToolsLanguages/Conceptual/Xcode4UserGuide/InterfaceBuilder/InterfaceBuilder.html) We know that the difference between the two event handling…
user1284864
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NSTextField events and resigning first responder

I want to implement an NSTextField where when I click it, it selects all the text. (to give the user easy way to delete all current text) when I finish editing it, either by pressing enter/tab or moving the mouse outside of it's rect, I will move …
Idan
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How to NOT dismiss keyboard when switching between two first responder textfields in SwiftUI

So I have a SwiftUI gesture that causes a state change to switch between two different views. In each of these views, the central component is a TextField (in this case a CocoaTextField, which was imported with SwiftUIX (a GitHub module). Each text…
nickcoding2
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Setting the inputAccessoryView of a UITextField to its superview

I have a UITableView with an Add cell... row and would like to have a keyboard pop up with a view above it like in the "Messages" application, where the user can type the name of the new cell. I realize that there are several other ways to get user…
Julian Ceipek
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Objective C: Can I set a subview to be firstResponder?

I have a situation whereby I am adding a view from another viewcontroller to an existing viewcontroller. For example: //set up loading page self.myLoadingPage = [[LoadingPageViewController alloc]init ]; self.myLoadingPage.view.frame =…
Zhen
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Mac Catalyst textfield first responder

On Mac Catalyst my app feature with textfield becomeFirstResponder() doesn't work. I try to put this code in viewwillappear: override func viewWillAppear(_ animated: Bool) { super.viewWillAppear(animated) …
alexsmith
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TextField rejected resignFirstResponder when being removed from hierarchy

I'm trying to make a custom textfield/sendbutton view that overrides inputAccessoryView, but I'm having 2 problems I can't seem to solve: When the custom view becomes the first responder, I get this warning twice: CustomKeyboardProject[5958:3107074]…
Wilson Desimini
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Scrolling NSTextView in OSX Today Widget with scrollwheel

I have the following view hierarchy in Today Widget app: NSScrollView NSClipView NSTextView When the text in NSTextView is bigger than it's size, I am able to scroll by highlighting text with a mouse, or by using arrow keys. But when I try to…
Richard Topchii
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UITextField resign first responder iOS4

I have a simple piece of code that works on every system except iOS4. It's about resigning first responder for a UITextField. The text field is all wired up, and here's the code for the delegate: - (BOOL)textFieldShouldReturn:(UITextField…
dusker
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Why does my NSWindow only receive mouseOver events the first time?

I have an application where a borderless window is shown and hidden, using orderOut and orderFront. When it is visible, I want the it to become the key window when the mouse moves over it. So far I've done this: In awakeFromNib I have set its first…
DanieL
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Forwarding a gesture to superview

So I have got this scenario: -NavigationController -PageViewController -MapViewController -UIView -MKMapView (Full Screen) -OtherViewController So basically, I want it to switch pages (viewcontrollers) when catching the…
jonypz
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Can't Call resignFirstResponder from textFieldDidBeginEditing ? (iPhone)

[myTextField becomeFirstResponder]; [myTextField resignFirstResonder]; When I do this -(BOOL)textFieldShouldReturn:(UITextField *)textField , it works. But when I use the same code inside -(void)textFieldDidBeginEditing:(UITextField *)textField ,…
Chris
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Why does UITextField begin editing when view controller is popped off the navigation stack?

I have a single UINavigationController, with an arbitrary root view controller. Then, I push the following subclassed UITableViewController onto the nav stack: @interface BugViewController : UITableViewController…
Emmett
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"Fixed" Strange "unrecognized selector sent to instance" crash happens on iOS8 beta5

My app works fine on iOS7,but crashes on iOS8. I've seen various question on this topic but never found a good solution for it. I have an App that's using UITableViewController and UITableViewController has an SearchDisplayController instance call…
ylovesy
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Need to click twice on NSTextField to become active

I have an NSTextField which is by default non editable and is first responder. I would like to make the NSTextField editable/active as soon as I click on it. I subclassed it and used the mousedown event: - (void)mouseDown:(NSEvent *)theEvent { …
Laurent Crivello
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