Since you elided your header file, this begs a question – is this iOS or OS X?
If I’m not mistaken, subclasses of NSView do not get -initWithCoder:, but
rather -initWithFrame:, which begs the question of have you confirmed that your
-initWithCoder: method is being called?
> On Feb 6, 2015, at 6:22 PM, N!K <pu56ucl...@alumni.purdue.edu> wrote:
>
>
> I would like to connect a button to MyView class, but Xcode 6.1.1 only allows
> control-dragging a button to AppDelegate to create an IBAction. I have not
> encountered this previously. Looking for a workaround, I found this
> recommendation in a couple of Stack Overflow and other web pages as well as a
> YouTube video. It enables the button to work, but unfortunately it zeros all
> the integers in MyView.
>
> The recommendation is:
> 1. Drag an empty Object from the IB library to the column of blue icons.
> 2. Set its class to MyView.
> 3. Control-drag from the button to MyView.m
> 4. Fill in the name (“act”) in the popup.
> This puts the IBAction template into MyView, ready to fill in.
>
> #import "MyView.h"
>
> @implementation MyView
>
> - (id)initWithCoder:(NSCoder *)aDecoder
> {
> self = [super initWithCoder:aDecoder];
> if (self) {
> iii=1000;
> k=99;
> }
> return self;
> }
>
> - (IBAction)act:(id)sender {
> iii=iii+1;
> NSLog(@" iba i= %i",iii);
> }
>
>
> In MyView.m, iii=1000 is initialized in initWithCoder. At the breakpoint
> after IBAction, iii is seen in both places to have the value 1, not 1001, by
> hovering. It was zeroed and then incremented after clicking on Button in the
> View. Similarly, k is initialized to 99 and then zeroed. Both are ivars in
> MyView.h.
>
> Clearly, zeroing all the integers is not acceptable. Can this approach be
> saved? Having the IBAction in MyView is desirable for directly relating its
> functions to the rest of MyView, rather than indirectly from AppDelegate. On
> the other hand, Xcode may have very good reasons – unknown to me – for
> restricting IBAction to AppDelegate. Maybe timing?
>
> Thanks in advance,
>
> Nick
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David Duncan
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