[MonoTouch] Now that I can post : Extending the UINavigationController??

[Nic Wise]

Can you be iOS5 only (well, fall back is using a tint color for older ones)??

if so:

UINavigationBar.Appearance.SetBackgroundImage(Resources.NavBarHeaderBackground,
UIBarMetrics.Default);

Works perfectly for me :) And I put an iOS check around the calls, so
it just defaults back to a tint color on iOS 4.2



On Thu, Mar 15, 2012 at 16:40, jhandel at gmail.com <jhandel at gmail.com> wrote:
> Ok, so in Objectionable C I could Swizzle my way into replacing the
> background of a NavigationBar inside a NavigationController (since the
> NavigationBar is read only, I can't replace it either :-P)..
>
> The technique I used to use can be found here
> http://sebastiancelis.com/2009/12/21/adding-background-image-uinavigationbar/
>
> What is a MonoTouch appropriate way to place a custom background image in
> the Navigation Bar of a NavigationController?
>
> because swizzling is right out :-P
>
> Thanks
> Josh
> ________________________________
> From: Jason Awbrey [jason at awbrey.net]
> Sent: Thursday, March 15, 2012 11:25 AM
> To: jhandel at gmail.com
> Cc: MonoTouch Forums
> Subject: Re: [MonoTouch] Now that I can post : Extending the
> UINavigationController??
>
>
> Apple does not recommend subclassing the Nav controller
>
> http://stackoverflow.com/questions/3029959/steps-in-subclassing-uinavigationcontroller
>
> On Thu, Mar 15, 2012 at 11:23 AM, jhandel at gmail.com <jhandel at gmail.com>
> wrote:
>>
>> Howdy all,
>>   Is there a known reason why inheriting UINavigationController would not
>> work the same as directly using the UINavigationController?
>>
>> this very simple class below (with the constructors just passing to the
>> base and doing nothing else) loads a blank (black) screen.. where as
>> directly creating a UINavigationController works just fine..
>>
>> public class MyNavViewControllerBase: UINavigationController
>>    {
>>        public MyNavViewControllerBase (UIViewController
>> viewController):base(viewController)
>>        {
>>            //setBackground(this);
>>        }
>>
>>        public MyNavViewControllerBase (NSCoder coder):base(coder)
>>        {
>>            //setBackground (this);
>>        }
>>
>>        public MyNavViewControllerBase ():base()
>>        {
>>            //setBackground (this);
>>        }
>>
>>        public MyNavViewControllerBase (IntPtr ptr):base(ptr)
>>        {
>>            //setBackground (this);
>>        }
>>
>>        public MyNavViewControllerBase (NSObjectFlag flag):base(flag)
>>        {
>>            //setBackground (this);
>>        }
>>
>>        public MyNavViewControllerBase (string nibName, NSBundle
>> bundle):base(nibName,bundle)
>>        {
>>            //setBackground (this);
>>        }
>> }
>>
>> We are initializing our UINavigationController in code in our AppDelegate
>> so there isn't an issue with the NIB here. Ergo
>>
>> UINavigationController myNavController = new
>> UINavigationController(myfirstViewController);
>>
>> works fine but
>>
>> MyNavViewControllerBase myNavController = new
>> MyNavViewControllerBase(myfirstViewController);
>>
>> just shows a black screen.
>>
>>
>> Thanks
>> Josh
>>
>> _______________________________________________
>> MonoTouch mailing list
>> MonoTouch at lists.ximian.com
>> http://lists.ximian.com/mailman/listinfo/monotouch
>
>
>
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> MonoTouch at lists.ximian.com
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>



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Nic Wise
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