How to create a Module in Xcode with a View for Titanium Mobile?

Accepted Answer

Finally figured this out. You don't have access to the current view controller, but you do have access to the app delegate, and it has a showModalController method that handles figuring out the view context for you. In this case, where "reader" was a view controller subclassed from UIImagePickerController, we used the following:

[[TiApp app] showModalController:reader animated:YES];

Note: we had to make sure the module (in ComDevelopmentnowTestModule.h) had implemented a couple protocols, like so:

@interface ComDevelopmentnowTestModule : TiModule 
    <UINavigationControllerDelegate, UIImagePickerControllerDelegate>

And we had to have these lines before that in the function, to make sure that the function has access to the UI thread and the controller knows where to delegate.

ENSURE_UI_THREAD(functionName,args);
[reader setDelegate:self];

Finally, to DISMISS the modal view when we got what we wanted, we had to do so by addressing it rather than the app:

[reader dismissModalViewControllerAnimated: YES];

You may not need all this if you're not doing the same thing we did. Good luck!

— answered July 30th 2010 by Ben Strackany
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3 Comments

Sorry for my late reply. Yes, this is the solution to our problem, we did quite the same approach some weeks ago when we tried to integrate a barcode scanner. Unfortunatelly the documentation of Module SDK wasn't sufficent in our case. After finsing the needle in the haystack we now have released a how-to for usage of the integrated Module as our prototype development TiBar.
Thank you for your answer.

— commented August 6th 2010 by Martin Lasak
Working perfectly… Main thig is in TiModule main file, you need to use [TiApp app] and for the method you are performing ViewController to load, call ENSURE_UI_THREAD

— commented April 17th 2012 by Paresh Thakor

My code is not working on device, could anyone please help..?

- (id) TweetPost : (id) args {
    NSArray *arr = args;
    _post = [args objectAtIndex: 0];
    NSLog(_post, nil);
    [_post retain];
    ENSURE_UI_THREAD(Tweet, args);
}

- (id) Tweet : (id) args {
        NSLog(@"Routine Twitter Module", nil)
        if (![_engine isAuthorized]) {
            UIViewController *controller = [SA_OAuthTwitterController controllerToEnterCredentialsWithTwitterEngine:_engine delegate:self];
            if (controller) {
                [[TiApp app] showModalController:controller animated: YES];
            }
        } else {
            [_engine sendUpdate: _post];
        }
}

While executing this code, on simulator, it works fine but on device the App crashes, instantly after NSLog(_post, nil); in TweetPost method. I think this is due to ENSURE_UI_THREAD(Tweet, args);. Can anyone help me out..?

— commented April 23rd 2012 by Paresh Thakor

We're having exactly this problem right now–[self parentViewController] and [[TiApp app] parentViewController] aren't it, apparently. The documentation on ViewProxies is wildly out of date. We'd be grateful if anyone can provide an answer, and we'll definitely post one here ourselves if we figure it out.

That guide is our most current documentation on SDK module development. If you're struggling to get a module running, you can try swinging by #titanium_dev on irc.freenode.net - this is the channel for people working on Titanium internals and extensions. You might be able to catch one of the devs there as well.

Thank you for your answer Kevin. We will of course follow your advice and ask on irc. But nevertheless i try to precise my question, maybe to help some other developers as well.

Question:
How to get access to current viewcontroller from within TiModule for creating new subviews.

Thank you.

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How to create a Module in Xcode with a View for Titanium Mobile?

4 Answers

Accepted Answer