Re: Setting the Selected Segment of a Segmented Control
Re: Setting the Selected Segment of a Segmented Control
- Subject: Re: Setting the Selected Segment of a Segmented Control
- From: Daniel Blakemore <email@hidden>
- Date: Wed, 15 Oct 2014 09:46:40 -0600
I can understand that it might behave that way. It's not in and of itself
unreasonable, although in my opinion if the selected segment changes
visually, it's kind of weird not to send the message since the key isn't
UIControlEventValueChangedButReallyIOnlyCareAboutWhenTheChangeCameFromATouch.
The irksome thing is that it used to work and now doesn't and there's no
API diff around selectedSegment and the wording in the documentation didn't
change between iOS 7 and 8.
So I don't know if it's an intentional decision or an oversight.
--
Daniel Blakemore
Pixio Software
On Tue, Oct 14, 2014 at 9:20 PM, Richard Charles <email@hidden>
wrote:
> Not sure about iOS but on OS X programmatically calling
>
> [NSSegmentedControl setSelectedSegment:]
>
> does not trigger the target / action message.
>
> You need to programmatically respond after setting the selected segment.
>
> Richard Charles
>
> On Oct 14, 2014, at 6:55 PM, Daniel Blakemore <email@hidden>
> wrote:
>
> > I have a simple problem. I am programmatically setting the selected
> > segment of a segmented control. Then the segmented control is changing
> > which segment appears selected on screen.
> >
> > You might be saying to yourself, "this seems correct". You would also be
> > correct.
> >
> > What is incorrect is that while the control *appears* to have changed, my
> > code knows nothing of this.
> >
> > I have an action added for the control event UIControlEventValueChanged
> > which is called as expected when you tap the control.
> >
> > HOWEVER, when changing the control programmatically, no such event is
> > generated. This leaves my app in an inconsistent state.
> >
> > For reference, see this example project
> > https://github.com/danblakemore/SegmentedNope.
> >
> > This worked in iOS 7. It now does not. What has changed?
> >
> > --
> > Daniel Blakemore
> > Pixio Software
> > _______________________________________________
>
>
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