Re: Unrecognized Selector Exception from IBAction's?
Re: Unrecognized Selector Exception from IBAction's?
- Subject: Re: Unrecognized Selector Exception from IBAction's?
- From: David Durkee <email@hidden>
- Date: Thu, 03 Sep 2015 08:18:01 -0500
It looks like the buttons may be hooked up to an object of the wrong class? Your actions aren’t defined in NSConcreteHashTable. Check your connections.
David
> On Sep 3, 2015, at 7:09 AM, Dave <email@hidden> wrote:
>
> Hi,
>
> This is a Mac Project.
>
> I’m getting an Unrecognized Selector Exceptions when clicking on a Button Control:
>
> 2015-09-03 12:46:04.464 LTWTest1[1970:896242] -[NSConcreteHashTable leftButtonAction:]: unrecognized selector sent to instance 0x6000001221c0
> 2015-09-03 12:46:04.464 LTWTest1[1970:896242] -[NSConcreteHashTable leftRightAction:]: unrecognized selector sent to instance 0x6000001221c0
> 2015-09-03 12:46:04.464 LTWTest1[1970:896242] -[NSConcreteHashTable toggleDisclosureAction:]: unrecognized selector sent to instance 0x6000001221c0
>
> I’ve checked in IB and the controls in question seem to be wired up correctly.
>
> The way this works is that I have a WindowController that has a NIB file which contains a View Hierarchy. The WindowController then creates an Instance of a View Controller (LTWDetailViewController) and adds its View to a StackView which is inside a Scroll View. The View Outlets seem to be wired up ok, but the IBAction’s cause an Exception.
>
> Please see the following code:
>
> LTWDisclosureViewController.h
>
> @interface LTWDisclosureViewController : NSViewController
> {
> NSView* _disclosedView;
> BOOL _disclosureIsClosed;
> }
>
> @property (nonatomic,weak) IBOutlet NSTextField* titleTextField;
> @property (nonatomic,weak) IBOutlet NSButton* disclosureButton;
> @property (nonatomic,weak) IBOutlet NSView* headerView;
>
>
> -(IBAction) toggleDisclosureAction:(id) theSender; //***** Causes Exception when Clicked (the methods are defined in the corresponding .m file).
>
> @end
>
> ——————————————————————————————————————————————
> LTWDetailViewController.h
>
> @interface LTWDetailViewController : LTWDisclosureViewController
> {
> }
>
> -(id) initWithWindowKind:(NSString*) theWindowKind;
> -(NSView*) startup;
>
> @property (nonatomic,weak) IBOutlet NSView* pDetailView;
>
>
> -(IBAction) leftButtonAction:(id) theSender; //***** Causes Exception when Clicked (the methods are defined in the corresponding .m file).
> -(IBAction) rightButtonAction:(id) theSender; //***** Causes Exception when Clicked (the methods are defined in the corresponding .m file).
>
> @end
>
>
>
>
> ——————————————————————————————————————————————
>
> This code is in the Window Controller, setupStackView is called from awakeFromNib.
>
> -(void) setupStackView
> {
> CGFloat myMinunumWidth;
> NSView* myDetailView;
> BOOL myClipStackViewHorizFlag;
> NSMutableDictionary* myViewsDictionary;
> NSNotificationCenter* myNotificationCenter;
> LTWDetailViewController* myValidationDetailViewController;
>
> myNotificationCenter = [NSNotificationCenter defaultCenter];
>
> myValidationDetailViewController = [[LTWDetailViewController alloc] initWithWindowKind:@"Validation"];
>
> [myValidationDetailViewController setTitle:@"***** Test Title 1 *****"];
> myDetailView = myValidationDetailViewController.view;
>
>
> [self.pValidationListStackView addView:myDetailView inGravity:NSStackViewGravityTop];
>
> //**
> //** Use the size of this view as an Minimum
> //**
> myMinunumWidth = myDetailView.frame.size.width;
>
> //**
> //** Vertically Centered Stack
> //**
> self.pValidationListStackView.orientation = NSUserInterfaceLayoutOrientationVertical;
> self.pValidationListStackView.alignment = NSLayoutAttributeTop;
> self.pValidationListStackView.spacing = 0;
>
> //**
> //** Do Not Hug Horizontally - Let the Fixed Width Subviews Float Centrally
> //**
> [self.pValidationListStackView setHuggingPriority:NSLayoutPriorityDefaultLow forOrientation:NSLayoutConstraintOrientationHorizontal];
>
> //**
> //** Allow StackView Clipping
> //**
> myClipStackViewHorizFlag = YES;
>
> //**
> //** Do Not Resist clipping Horizontally
> //**
> //** NSScrollView Wrapper Will Allow the Clipped View to be Scrolled into View.
> //**
> if (myClipStackViewHorizFlag == YES)
> [self.pValidationListStackView setClippingResistancePriority:NSLayoutPriorityDefaultLow forOrientation:NSLayoutConstraintOrientationHorizontal];
>
> //**
> //** The StackView Min Width Will Match the SubView Minimum Width
> //**
> else
> [self.pValidationListStackView setClippingResistancePriority:NSLayoutPriorityDefaultHigh forOrientation:NSLayoutConstraintOrientationHorizontal];
>
> //**
> //** Hug vertically
> //**
> [self.pValidationListStackView setHuggingPriority:NSLayoutPriorityDefaultHigh forOrientation:NSLayoutConstraintOrientationVertical];
>
> //**
> //** Do Not Resist Clipping Vertically
> //**
> [self.pValidationListStackView setClippingResistancePriority:NSLayoutPriorityDefaultLow forOrientation:NSLayoutConstraintOrientationVertical];
>
> self.pValidationIssueScrollView.translatesAutoresizingMaskIntoConstraints = NO;
> NSAssert(self.pValidationIssueScrollView.contentView.isFlipped,@"ScrollView Clip View must be flipped?");
>
>
> //**
> //** Add stack view to the scrollview
> //**
> [self.pValidationIssueScrollView setDocumentView:self.pValidationListStackView];
>
> //**
> //** the StackView Width is Constrained to Match the ScrollView Width.
> //**
> //** Note: this arrangement will not not show the horizontal scroller when clippng as the stackview width matches the scrollvew width.
> //** to show the horiz scroller remove these constraints when the view size hits the minWidth limit.
> //**
> myViewsDictionary = [[NSMutableDictionary alloc] init];
> [myViewsDictionary setObject:self.pValidationListStackView forKey:@"stackView"];
>
> self.stackViewConstraints = [NSLayoutConstraint constraintsWithVisualFormat:@"H:|-0-[stackView]-0-|" options:0 metrics:nil views:myViewsDictionary];
> [self.pValidationIssueScrollView addConstraints:self.stackViewConstraints];
> self.horizontalConstraintsApplied = YES;
>
> if (myClipStackViewHorizFlag == YES)
> {
>
> //**
> //** Observe the scroll view frame and update the horizontal constraint as required
> //**
> self.frameObserver = [myNotificationCenter addObserverForName:NSViewFrameDidChangeNotification
> object:self.pValidationIssueScrollView queue:nil
> usingBlock:^(NSNotification* theNotification)
> {
> if (self.pValidationIssueScrollView.frame.size.width < myMinunumWidth)
> {
> if (self.horizontalConstraintsApplied == YES)
> {
> [self.pValidationIssueScrollView removeConstraints:self.stackViewConstraints];
> self.horizontalConstraintsApplied = NO;
> }
>
> }
> else
> {
> if (!self.horizontalConstraintsApplied)
> {
> [self.pValidationIssueScrollView addConstraints:self.stackViewConstraints];
> self.horizontalConstraintsApplied = YES;
> }
> }
> }];
> }
> }
>
>
> //*****************************************************************************************
> //**
> //** initWithWindowKind:
> //**
> //*****************************************************************************************
> -(instancetype) initWithWindowKind:(NSString*) theWindowKind
> {
> NSString* myNIBName;
>
> myNIBName = @"ValidationWindow";
> self = [super initWithWindowNibName:myNIBName];
> if (self == nil)
> return nil;
>
> return self;
> }
>
>
> //*****************************************************************************************
> //**
> //** awakeFromNib
> //**
> //*****************************************************************************************
> -(void) awakeFromNib
> {
> [self validationSetupStackView];
> }
>
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