[MonoTouch] SDK 5 issue

[Nic Wise]

ignore the bit about __mt_window :) I thought you were using a XIB and
a partial class, which does this for you. (ie, how the default
template does it)

On Mon, Oct 17, 2011 at 16:06, Nic Wise <nicw at fastchicken.co.nz> wrote:
> Try moving all the declarations out of FinishedLaunching, eg:
>
>
>>               private MonoTouch.UIKit.UIWindow __mt_window;
>>               private UITextField _txtField;
>>
>>>>>>> THEY should be here!
>
>      MyController ctrl1;
>      UIView mainView;
>      UIToolbar toolbar;
>
>
>
>>               public override bool FinishedLaunching (UIApplication app, NSDictionary
>> options)
>>               {
>>                       __mt_window = new UIWindow(UIScreen.MainScreen.Bounds);
>>                       __mt_window.BackgroundColor = UIColor.White;
>>
>
> why are you using __mt_window? use the window property, which talks to
>
>>                       MyController ctrl1 = new MyController();
>>
>>                       UIView mainView = new UIView(UIScreen.MainScreen.Bounds);
>>
>>>>> NOT HERE!
>
>
>>                       UIToolbar toolbar = new UIToolbar(new RectangleF(0, 0, 320, 30));
>>                       toolbar.Items = new[]
>>                       {
>>                               new UIBarButtonItem(UIBarButtonSystemItem.FlexibleSpace),
>>                               new UIBarButtonItem(UIBarButtonSystemItem.Done, HandleDoneButton)
>>                       };
>>
>>>>> OR HERE - move UIToolbar out into a class-level variable
>
>
>
>> Native stacktrace:
>>
>>       0   MTFailure                           0x000d5c18
>> mono_handle_native_sigsegv + 408
>
> SIGSEGV is a Signal for a Segment Violation.
>
> AKA a Null Pointer Exception.
>
> All those things above will be getting GC'ed before you get to use
> them. The GC in the newer version of MT is (I beleive) a LOT more
> agressive, so things going out of scope get cleaned up quickly.
> Putting them in as class var's stops that.
>
>
>
> N
>
> --
> Nic Wise
> t.  +44 7788 592 806 | @fastchicken | http://www.linkedin.com/in/nicwise
> b. http://www.fastchicken.co.nz/
>
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> http://goo.gl/IuBU
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>



-- 
Nic Wise
t.  +44 7788 592 806 | @fastchicken | http://www.linkedin.com/in/nicwise
b. http://www.fastchicken.co.nz/

Nearest Bus: find when the next bus is coming to your stop. http://goo.gl/Vcz1p
mobileAgent (for FreeAgent): get your accounts in your pocket.
http://goo.gl/IuBU
Trip Wallet: Keep track of your budget on the go: http://goo.gl/ePhKa
London Bike App: Find the nearest Boris Bike, and get riding! http://goo.gl/Icp2