Re: Access object from another view
Re: Access object from another view
- Subject: Re: Access object from another view
- From: Steve Wetzel <email@hidden>
- Date: Tue, 21 Sep 2010 16:03:16 -0500
Thanks Everyone.
I could not get the
[self.viewController1.label2.text
or the
[self view addSubview:viewController2.view];
to work for some reason. Then it dawned on me that I could set the value right before I added the Subview!
[viewController2.label2 setText:label1.text];
[self.view addSubview:viewController2.view];
This works, although for some reason the label does not update unless I reload the view. I will figure out what is going on there.
Thanks for the suggestions.
Steve
On Sep 21, 2010, at Sep 21:3:25 PM, Conrad Shultz wrote:
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> On 9/21/10 11:57 AM, Steve Wetzel wrote:
>> How do I access and object on one view from another view? I cannot
>> figure it out.
>>
>> I have two view controllers and two views. Lets call them
>> viewController1 and viewController2 and view1 and view2.
>> ViewController1 loads the second view by:
>>
>> [self.view addSubview:viewController2.view];
>>
>> There is a label in view1 that I want to get the value of the text
>> from in the code for viewController2. How do I do this?
>
> Caveat: you ought to listen to Quincey's advice, since it will give a
> more robust, or at least a cleaner, implementation.
>
> That said, for the specific situation at hand, UIView has a superview
> property that returns a reference to, well, the view's superview (if it
> exists). If you have the label as a property of view1 ("theLabel"), you
> could do something like the following (in viewController2):
>
> UILabel *theLabel = [[[self view] superview] theLabel];
>
> If it's a tagged view, you could do something like:
>
> NSInteger labelTag = (whatever you set, probably in IB);
> UILabel *theLabel = [[[self view] superview] viewWithTag:labelTag];
>
> (Since properties are involved, you are of course free to use dot syntax
> in many places above if that's your preference.)
>
> - --
> Conrad Shultz
>
> Synthetiq Solutions
> www.synthetiqsolutions.com
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