https://github.com/xamarin/monotouch-samples/blob/master/TransitionsDemo/TransitionsDemo/InteractionControllers/CEHorizontalSwipeInteractionController.cs#L27

Should read HandleGesture:

So should https://github.com/xamarin/monotouch-samples/blob/master/TransitionsDemo/TransitionsDemo/InteractionControllers/CEVerticalSwipeInteractionController.cs#L33

How would you change the StreamingPlayback to start playing another track? I have tried a singleton wrapper around StreamingPlayback which disposes and creates a new StreamingPlayback when tracks change but this causes memory/GC issues on the phone.

Would it be possible to pass in a new stream? Can you update the example please as, without being able to change tracks, the player is not very useful.

I am trying to convert the message label to message textview so that i can have links, text-copy and many other features which are supported by UITextView but not by UIlabelView

I tried several time to use this sample to add reminder in my app but reminder is not working .

I've seen this in the simulator and a connected device. The appearance of items, both selected and non selected, seems pretty random. See attached image:

Also worthy of note is I attempted to customize a UIPickerView myself before looking at these samples, and I'm facing similar issues with the appearance of the picker. Could this be an issue with overriding GetView()?

Hi. I have been experiencing a crash in my app when I select a contact from the address book in the simulator. I’m getting a similar crash when I use the QuickContacts sample (http://developer.xamarin.com/samples/monotouch/ios8/QuickContacts/). These are the steps after starting the QuickContacts app in the simulator:

1. Select Display Picker
2. Select John Appleseed
3. Select the first mobile number
4. The app crashes with the stack trace below

Has anyone else experienced a similar problem? It there a workaround? Any help would be much appreciated.

This is my Xamarin setup:
Xamarin Studio
Version 5.9.3 (build 1)
Runtime:
Mono 4.0.1 ((detached/ed1d3ec)
GTK+ 2.24.23 (Raleigh theme)

Package version: 400010044

Apple Developer Tools
Xcode 6.3.2 (7718)
Build 6D2105

Xamarin.iOS
Version: 8.10.1.64 (Indie Edition)
Hash: e6ebd18
Branch: master
Build date: 2015-05-21 21:55:09-0400

Stack Trace:
2015-06-04 13:30:50.664 QuickContacts[1322:44259] critical: Stacktrace:

2015-06-04 13:30:50.664 QuickContacts[1322:44259] critical: at <0xffffffff>
2015-06-04 13:30:50.664 QuickContacts[1322:44259] critical: at (wrapper managed-to-native) AddressBook.ABRecord.ABRecordCopyValue (intptr,int) <IL 0x0002e, 0xffffffff>
2015-06-04 13:30:50.686 QuickContacts[1322:44259] critical: at AddressBook.ABRecord.CopyValue (int) [0x00000] in /Users/builder/data/lanes/1503/e6ebd18b/source/maccore/src/AddressBook/ABRecord.cs:190
2015-06-04 13:30:50.687 QuickContacts[1322:44259] critical: at AddressBook.ABRecord.PropertyToString (int) [0x00000] in /Users/builder/data/lanes/1503/e6ebd18b/source/maccore/src/AddressBook/ABRecord.cs:214
2015-06-04 13:30:50.687 QuickContacts[1322:44259] critical: at AddressBook.ABPerson.get_FirstName () [0x00000] in /Users/builder/data/lanes/1503/e6ebd18b/source/maccore/src/AddressBook/ABPerson.cs:709
2015-06-04 13:30:50.687 QuickContacts[1322:44259] critical: at QuickContacts.QuickContactsViewController.HandlePerformAction2 (object,AddressBookUI.ABPeoplePickerPerformAction2EventArgs) [0x00007] in /Users/MChipeta/Downloads/QuickContacts/QuickContacts/QuickContactsViewController.cs:220
2015-06-04 13:30:50.688 QuickContacts[1322:44259] critical: at AddressBookUI.ABPeoplePickerNavigationController.OnPerformAction2 (AddressBookUI.ABPeoplePickerPerformAction2EventArgs) [0x00012] in /Users/builder/data/lanes/1503/e6ebd18b/source/maccore/src/AddressBookUI/ABPeoplePickerNavigationController.cs:232
2015-06-04 13:30:50.688 QuickContacts[1322:44259] critical: at AddressBookUI.InternalABPeoplePickerNavigationControllerDelegate.DidSelectPerson (AddressBookUI.ABPeoplePickerNavigationController,AddressBook.ABPerson,int,int) [0x0002e] in /Users/builder/data/lanes/1503/e6ebd18b/source/maccore/src/AddressBookUI/ABPeoplePickerNavigationController.cs:128
2015-06-04 13:30:50.688 QuickContacts[1322:44259] critical: at (wrapper runtime-invoke) .runtime_invoke_void__this___object_object_int_int (object,intptr,intptr,intptr) <IL 0x00082, 0xffffffff>
2015-06-04 13:30:50.688 QuickContacts[1322:44259] critical: at <0xffffffff>
2015-06-04 13:30:50.689 QuickContacts[1322:44259] critical: at (wrapper managed-to-native) UIKit.UIApplication.UIApplicationMain (int,string[],intptr,intptr) <IL 0x000ae, 0xffffffff>
2015-06-04 13:30:50.690 QuickContacts[1322:44259] critical: at UIKit.UIApplication.Main (string[],intptr,intptr) [0x00005] in /Users/builder/data/lanes/1503/e6ebd18b/source/maccore/src/UIKit/UIApplication.cs:63
2015-06-04 13:30:50.690 QuickContacts[1322:44259] critical: at UIKit.UIApplication.Main (string[],string,string) [0x00038] in /Users/builder/data/lanes/1503/e6ebd18b/source/maccore/src/UIKit/UIApplication.cs:47
2015-06-04 13:30:50.690 QuickContacts[1322:44259] critical: at QuickContacts.Application.Main (string[]) [0x00008] in /Users/MChipeta/Downloads/QuickContacts/QuickContacts/Main.cs:17
2015-06-04 13:30:50.690 QuickContacts[1322:44259] critical: at (wrapper runtime-invoke) .runtime_invoke_void_object (object,intptr,intptr,intptr) <IL 0x00060, 0xffffffff>
2015-06-04 13:30:50.691 QuickContacts[1322:44259] critical:
Native stacktrace:

2015-06-04 13:30:50.691 QuickContacts[1322:44259] critical:
Got a SIGSEGV while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries
used by your application.

Not sure why this only happens sometimes but when launching the NewBox app to a simulator this line:

NSFileManager.DefaultManager.CreateDirectory (DocumentStorageUrl, true, null, out error);

in FileProvider.cs (in the ctor) occasionally throws:

UIKit.UIKitThreadAccessException: UIKit Consistency error: you are calling a UIKit method that can only be invoked from the UI thread.
at UIKit.UIApplication.EnsureUIThread () [0x00023] in /Users/builder/data/lanes/2689/962a0506/source/maccore/src/UIKit/UIApplication.cs:86
at UIKit.NSFileProviderExtension.get_DocumentStorageUrl () [0x00000] in /Users/builder/data/lanes/2689/962a0506/source/maccore/src/build/ios/native/UIKit/NSFileProviderExtension.g.cs:248
at NBoxFileProvider.FileProvider..ctor () [0x00017] in /Users/apple/Documents/Xamarin/XamSupport/NewBox/NBoxFileProvider/FileProvider.cs:19

I resolved it by using InvokeOnMainThread:

        InvokeOnMainThread (() => {
            NSFileManager.DefaultManager.CreateDirectory (DocumentStorageUrl, true, null, out error);

        });

According to this guide from Xamarin's guide, I think the sample with SimpleCollectionView should reuses cell but it doesn't.

I ran the demo with flowLayout, it always call to AnimalCell' constructor to init new Cell instead of reuse from reusable cell.

In Apple example https://developer.apple.com/library/ios/#samplecode/LazyTableImages/Introduction/Intro.html images are loads when UITableView stops scrolling.
In xamarin / monotouch-samples / LazyTableImages any images are loads consequentially after cells are showing.

These examples have different behavior.

I run samples using MPMoviePlayerController!
http://developer.xamarin.com/samples/MoviePlayback/
But video not play!
and view log i recive error "property list invalid for format 200 (property lists cannot contain null)"

Please help me! thank!

Hi,
I built the ImageProtocol sample with X.iOS 6.2.7.1 - XCode 4.6.3 - IPhoneSimulator 6.1 and after launch WebView shows just clear white area. No errors while loading test.html are pushed through UIWebView's LoadError event. Seems that ImageProtocol GetCanonicalRequest&StartLoading methods never called. Port of this sample code to obj-c works as expected.

Any help would be appreciated.

What should I do to get it working?

Hello,
When I open and build monocatalog-md solution (and all other monodevelop solutions),
50% of the xib file generate this error on build process :
XXXXViewController.xib: Error: Unknown char: . (monocatalog)
I use new version of MonoDevelop v 2.4 (SVN revision 159698).
Do you have an idea ? Could you help me ?
Thanks
Julien

monotouch-samples

Upon trying to build AstroLayout I get about 84 build errors. A lot of missing assembly references.

Class
UILayoutGuide

Methods:
SetIdentifier which should be attached to NSLayoutConstraint.

Properties:
HeightAnchor on UIImageView
CenterXAnchor on UIImageView
WidthAnchor on UIImageView

What am I missing?

You call getprograminfolog instead of getshaderinfolog. here's the updated function (found in GLProgram.cs) that fixes the bug:

string getLog (int obj) {
  string log;
  if (GL.IsShader( obj )) {
    log = GL.GetShaderInfoLog( obj );
  } else {
    log = GL.GetProgramInfoLog (obj);
  }

  return log;
}

I made a slightly modified version of SimpleTextInput and it used to work with voice dictation.

Lately, I think since iOS 8, InsertText is still getting called by voice dictation actions, but strings of spaces-only are getting passed to the: string text parameter, not the actual text spoken (which did used to happen). textView.text is however still getting set, sometimes and somehow, I'm not clear how.

If you look in
monotouch-samples/WatchKit/WatchKitCatalog/WatchkitExtension/WatchkitExtension.csproj
monotouch-samples/WatchKit/WatchKitCatalog/WatchKitCatalog/WatchKitCatalog.csproj
and
monotouch-samples/WatchKit/WatchKitCatalog/WatchApp/WatchApp.csproj

You will see that the CodeSign key is set to:
iPhone Distribution: Peter Beaman (ZYWNCWEKU5)

should be:
iPhone Developer
or
iPhone Distribution

as the defaults.
in the Release|iPhone and/or AppStore|iPhone configurations. This might cause some confusion for customers working from this sample when they build for Release or AppStore iPhone configurations.

I am looking to work with audio and many of the iOS samples are working with xcode 6.

avTouch - XIB has an error won't compile
converter demo - never finishes rendering (I didn't bother debugging)
APTapQueue - I can't get any sound to play (although it looks like it's processing data)

maybe it's just me, but these are kind of old and might need updating.

See https://bugzilla.xamarin.com/show_bug.cgi?id=37341

Should add public override UIWindow Window { get; set; } to AppDelegate to make it work !!

Hi,
I built the MediaPlayer sample with MT 4.0 / XCode 4.0 / ioS 4.3 and when I click "Local" and "Play Movie" nothing happens.

The console spits out the URL for the movie, then says "Content Preload Finished"... No movie, on Simulator or Phone?

Am I doing something wrong?

In FourInARow, Board.Copy(NSZone) cannot return null.

If it returns null, the GKMinMaxStrategist does not properly evaluate potential moves.

To reproduce: add a static counter to Board.ScoreForPlayer and you will see that it is only called a single time.

If you rewrite Board.Copy(NSZone) to return a clone, it will be called dozens of times, similarly as to how it is called in Apple's version.

Partial solution: Board.Copy(NSZone) should return a clone of this, similar to Apple's 👍

• (__nonnull id)copyWithZone:(nullable NSZone *)zone {
  AAPLBoard *copy = [[[self class] allocWithZone:zone] init];
  [copy setGameModel:self];
  return copy;
  }

Problem: When I did this, it appears that several AI moves are executed simultaneously.

There is a line as given below in the file CallHistoryController.cs.May i know what is CallHistoryCell and should i need to create a Xib file or not required? Please reply.

static NSString callHistoryCellId = new NSString ("CallHistoryCell");

Using the Zoomable pdf viewer worked great at first, but then I noticed a small subsect of pdf that can't be display. I Looked around the code and the one thing I noticed is that CGPDFDocument is reading the file just fine, but when it is time to create the subsampling image the view shows a white page.

I exported the pdfs to pdf on my mac and now the file is bigger and they can be view on the device. Is it a compression issues? or is the formatting for the original pdf different?

// make the initial view 'fit to width'
            CGRect pageRect = page.GetBoxRect (CGPDFBox.Media);
            //scale = Frame.Width / pageRect.Width;
            scale = Frame.Width / pageRect.Width;
            pageRect.Size = new CGSize (pageRect.Width * scale , pageRect.Height * scale);

            // create bitmap version of the PDF page, to be used (scaled)
            // when no other (tiled) view are visible
            UIGraphics.BeginImageContext (pageRect.Size);
            CGContext context = UIGraphics.GetCurrentContext ();
            //CGColorSpace colorSpace = CGColorSpace.CreateDeviceRGB();
            //CGBitmapContext context = new CGBitmapContext(null, (int)pageRect.Size.Width, (int)pageRect.Size.Height, 8, (int)pageRect.Size.Width * 4, colorSpace , CGImageAlphaInfo.PremultipliedLast);

            // fill with white background
            context.SetFillColor (1.0f, 1.0f, 1.0f, 1.0f);
            context.FillRect (pageRect);
            context.SaveState ();

I'm trying to run MotionActivityDemo on iOS 10 (iphone SE) and i get following stack trace.
New Xamarin Studio version (Community) , 6.1.1 build 15

2016-10-17 17:20:06.355 MotionActivityDemo[1189:871273] critical: 0 MotionActivityDemo 0x00076f11 mono_handle_native_sigsegv + 240
2016-10-17 17:20:06.355 MotionActivityDemo[1189:871273] critical: 1 libsystem_platform.dylib 0x1ac2b26d _sigtramp + 24
2016-10-17 17:20:06.355 MotionActivityDemo[1189:871273] critical: 2 libsystem_kernel.dylib 0x1ab77d8f + 64
2016-10-17 17:20:06.355 MotionActivityDemo[1189:871273] critical: 3 libsystem_kernel.dylib 0x1ab77dd9 system_set_sfi_window + 0
2016-10-17 17:20:06.355 MotionActivityDemo[1189:871273] critical: 4 TCC 0x1d280e85 + 228
2016-10-17 17:20:06.355 MotionActivityDemo[1189:871273] critical: 5 TCC 0x1d280da1 + 0
2016-10-17 17:20:06.355 MotionActivityDemo[1189:871273] critical: 6 TCC 0x1d28357b + 276
2016-10-17 17:20:06.355 MotionActivityDemo[1189:871273] critical: 7 libxpc.dylib 0x1ac6115f + 46
2016-10-17 17:20:06.355 MotionActivityDemo[1189:871273] critical: 8 libxpc.dylib 0x1ac61101 + 26
2016-10-17 17:20:06.355 MotionActivityDemo[1189:871273] critical: 9 libdispatch.dylib 0x1aa8649b + 604
2016-10-17 17:20:06.356 MotionActivityDemo[1189:871273] critical: 10 libdispatch.dylib 0x1aa87a91 + 378
2016-10-17 17:20:06.356 MotionActivityDemo[1189:871273] critical: 11 libdispatch.dylib 0x1aa878b7 + 106
2016-10-17 17:20:06.356 MotionActivityDemo[1189:871273] critical: 12 libsystem_pthread.dylib 0x1ac2d947 _pthread_wqthread + 1168
2016-10-17 17:20:06.356 MotionActivityDemo[1189:871273] critical: 13 libsystem_pthread.dylib 0x1ac2d49c start_wqthread + 8
#2016-10-17 17:20:06.356 MotionActivityDemo[1189:871273] critical:

Got a SIGABRT while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries

used by your application.

Due to deprecation of the AudioSession class, samples such as StreamingAudio and AudioGenerator fail to run on iOS7.

This contains some more information on the issue:
https://github.com/software-mariodiana/AudioBufferPlayer/wiki/Replacing-C-functions-deprecated-in-iOS-7

README.md says:

"The Apache License 2.0 applies to all samples in this repository."

While LICENSE says:

"All of the samples in this directory are licensed under the terms of the MIT X11 license"

Which one is it?

NonConsumables not support iOS7?

why storekit have not got Receipt Verification code

Hey,

This is a first-draft at porting to async/await using CancellationTokens to help handle proper cleanup/destruction of the player and related resources. It makes it very very nice to use :)

https://gist.github.com/alanmcgovern/9275bf1159630756cebe

I am getting a not implimented error on the MidiPort MessageReceived handler in the Xamarin CoreMidi sample app. I am running iOS 6.0.1 on my iPad. Messages are being generated via network interface from Logic Pro (using the caps lock keyboard). Let me know if you need additional details.

thanks,
mark

The sound example which I am using for my app is no longer working with the latest iOS SDK 8.

The PrepareToRecord method returns false and the app errors out.

Any updates coming?

The CloudCaptions [1] sample throws an error due to a NullReferenceException in PrepareForSegue when you select the option to "Select from Cloudkit".

When you choose "Select from CloudKit", this is the method that is called:

UIAlertAction selectExisting = UIAlertAction.Create (selectButton, UIAlertActionStyle.Default, action => {
PerformSegue("selectExisting", null);
});

As you can see, null is passed in for the "sender" argument to the PerformSegue call, which triggers the PrepareForSegue method with those arguments, IOW null is being passed in as the sender. Anyway, they issue is that you should not need to call base in this override. IOW, just remove this line in the PrepareForSegue method:

base.PrepareForSegue (segue, sender);

According to Apple's docs: "The default implementation of this method does nothing."
so there is no need to call it.

[1] https://docs.xamarin.com/samples/monotouch/ios8/CloudCaptions/

Has hard-coded IPv4 addresses. See https://blog.xamarin.com/making-your-ios-apps-ipv6-ready/

Followed the steps mentioned in the readme: executed make command and ran the application. Got the following exception:

ObjCRuntime.RuntimeException: The registrar found a signature mismatch in the method 'XMBindingLibrarySample.XMUtilities.Multiply' - the selector 'multiply:and' indicates the method takes 1 parameters, while the managed method has 2 parameters.

Application Terminated

I am running Xamarin Studio on Mac.

I think it is a common bug in Xamarin, but RowSelected event is not being fired.

If using the iOS Background upload or download, there is a CompletionHandler that must be called - it updates the APP snapshot that users see when switching apps. However, my experience with this method is that when the task completes in the background, the app screenshot is NOT updated.

How would we modify this BackgroundExecution example to support updating the app screenshot in the background?

I'm running the latest alpha of Xamarin Studio and receiving "Could not load project 'Hello-tvOS/Hello-tvOS.csproj' with unknown item type '{06FA79CB-D6CD-4721-BB4B-1BD202089C55}'" error message.

I'm running Xamarin Studio 5.10 (build 860), from the alpha channel. I was hoping Alpha would pull in what I needed. Anybody else having this issue?

I can't find the GLImageProcessing example project from the Apple documentation:

http://developer.apple.com/library/ios/#samplecode/GLImageProcessing/Introduction/Intro.html

A MonoTouch version of that would be very useful to learn, allowing fast image processing of UIImages using the iPhone and iPad GPU, making filters like blur or to 24 times faster.

If I get the latest code and try to run the solution in MonoCatalog-MonoDevelop I get a tableview that has no items in it. It seems like GetCell() is never called on DataSource.

I'm currently on the beta channel, not sure if that has anything to do with it.

Most of your home kit intro sample files seem to be .cs files rather than the correct type

I have found that the Zooming Pdf Viewer sample crashes if you zoom in and out really fast and often.

After experiencing this issue on an app where I implemented this sample I came to the conclusion that the TiledLayerDelegate : CALayerDelegate class is the one responsible. To be more precise it is the Dispose(bool is disposing) method the one causing it. I ran my app for about 30 minutes switching pages, zooming in and out multiple times and not once did it crashed after I did the following to the Dispose method.

for more details refer to this post from stackoverflow

    ` class TiledLayerDelegate : CALayerDelegate{       
    TiledPdfView view;
    CGRect bounds;

    public TiledLayerDelegate (TiledPdfView view)
    {
        try {
            this.view = view;
            bounds = view.Bounds;
        } catch(Exception e) {
            System.Console.Write (e);
        }
    }

    public override void DrawLayer (CALayer layer, CGContext context)
    {
        // fill with white background
        context.SetFillColor(1.0f, 1.0f, 1.0f, 1.0f);
        //context.SetStrokeColor (0.18f, 0.37f, 0.50f, 1.0f);
        //layer.BackgroundColor = UIColor.FromRGBA(0.87f, 0.93f, 1.0f, 0.5f).CGColor;
        context.FillRect (bounds);
        context.SaveState ();

        // flip page so we render it as it's meant to be read
        context.TranslateCTM (0.0f, bounds.Height);
        context.ScaleCTM (1.0f, -1.0f);

        // scale page at the view-zoom level
        context.ScaleCTM (view.Scale, view.Scale);
        context.DrawPDFPage (view.Page);
        context.RestoreState ();
    }

    protected override void Dispose (bool disposing)
    {
        try{
            view = null;
            GC.Collect (2);
            //base.Dispose (disposing);
        }catch(Exception e) {
            //System.Console.Write(e);
        }
    }

}`

The Touches_GestureRecognizers project doesn't load in MonoDevelop 2.6. It gives me the following error:

Could not load project '/Users/Emanuele/Projects/xamarin-monotouch-samples/Touches/Touches_GestureRecognizers/Touches_GestureRecognizers/Touches_GestureRecognizers.csproj' with unknown item type '{6BC8ED88-2882-458C-8E55-DFD12B67127B};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}'

Per apple docs this will no longer work when on a local wifi :(

https://developer.apple.com/library/content/samplecode/Reachability/Listings/ReadMe_md.html#//apple_ref/doc/uid/DTS40007324-ReadMe_md-DontLinkElementID_11

Fixed this inside connectivity plugin

Was digging through old mail when I saw that this issue had been brought up ages ago, but clearly remembered seeing it just that day. I've dug around since then and, sure enough, Apply copybugs are everywhere in iOS[8|9] directories. Might be elsewhere, too. These should probably be removed, and whatever translation tool is being used should be updated to not put the copybugs in.

Cheers!

The ViewTransitions.csproj does not load, MD gives a error:

System.InvalidOperationException: Unknown solution item type.
at MonoDevelop.Projects.Formats.MSBuild.MSBuildProjectHandler.CreateSolutionItem (System.String language, System.String typeGuids, System.String itemType, System.Type itemClass) [0x00000] in :0
at MonoDevelop.Projects.Formats.MSBuild.MSBuildProjectHandler.Load (IProgressMonitor monitor, System.String fileName, System.String language, System.Type itemClass) [0x00000] in :0
at MonoDevelop.Projects.Extensions.DotNetProjectNode.LoadSolutionItem (IProgressMonitor monitor, System.String fileName, System.String itemGuid) [0x00000] in :0
at MonoDevelop.Projects.Formats.MSBuild.MSBuildProjectService.LoadItem (IProgressMonitor monitor, System.String fileName, System.String typeGuid, System.String itemGuid) [0x00000] in :0
at MonoDevelop.Projects.Formats.MSBuild.MSBuildFileFormat.ReadFile (FilePath file, System.Type expectedType, IProgressMonitor monitor) [0x00000] in :0
at MonoDevelop.Projects.ProjectService.ReadFile (IProgressMonitor monitor, System.String file, System.Type expectedType, MonoDevelop.Projects.FileFormat& format) [0x00000] in :0
at MonoDevelop.Projects.ProjectService+c__AnonStoreyAC.<>m__6F (IProgressMonitor , System.String ) [0x00000] in :0
at MonoDevelop.Projects.DefaultProjectServiceExtension.LoadSolutionItem (IProgressMonitor monitor, System.String fileName, MonoDevelop.Projects.Extensions.ItemLoadCallback callback) [0x00000] in :0
at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem (IProgressMonitor monitor, System.String fileName) [0x00000] in :0
at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem (IProgressMonitor monitor, System.String fileName, MonoDevelop.Projects.Extensions.ItemLoadCallback callback) [0x00000] in :0
at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem (IProgressMonitor monitor, System.String fileName) [0x00000] in :0
at MonoDevelop.Autotools.MakefileProjectServiceExtension.LoadSolutionItem (IProgressMonitor monitor, System.String fileName) [0x00000] in :0
at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem (IProgressMonitor monitor, System.String fileName, MonoDevelop.Projects.Extensions.ItemLoadCallback callback) [0x00000] in :0
at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem (IProgressMonitor monitor, System.String fileName) [0x00000] in :0
at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem (IProgressMonitor monitor, System.String fileName, MonoDevelop.Projects.Extensions.ItemLoadCallback callback) [0x00000] in :0
at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem (IProgressMonitor monitor, System.String fileName) [0x00000] in :0
at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem (IProgressMonitor monitor, System.String fileName, MonoDevelop.Projects.Extensions.ItemLoadCallback callback) [0x00000] in :0
at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem (IProgressMonitor monitor, System.String fileName) [0x00000] in :0
at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem (IProgressMonitor monitor, System.String fileName, MonoDevelop.Projects.Extensions.ItemLoadCallback callback) [0x00000] in :0
at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem (IProgressMonitor monitor, System.String fileName) [0x00000] in :0
at MonoDevelop.Projects.CompiledAssemblyExtension.LoadSolutionItem (IProgressMonitor monitor, System.String fileName) [0x00000] in :0
at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem (IProgressMonitor monitor, System.String fileName, MonoDevelop.Projects.Extensions.ItemLoadCallback callback) [0x00000] in :0
at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem (IProgressMonitor monitor, System.String fileName) [0x00000] in :0
at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem (IProgressMonitor monitor, System.String fileName, MonoDevelop.Projects.Extensions.ItemLoadCallback callback) [0x00000] in :0
at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem (IProgressMonitor monitor, System.String fileName) [0x00000] in :0
at MonoDevelop.Projects.ProjectServiceExtension.LoadSolutionItem (IProgressMonitor monitor, System.String fileName, MonoDevelop.Projects.Extensions.ItemLoadCallback callback) [0x00000] in :0
at MonoDevelop.Projects.ProjectService.ReadSolutionItem (IProgressMonitor monitor, System.String file) [0x00000] in :0
at MonoDevelop.Projects.SolutionFolder.AddItem (IProgressMonitor monitor, System.String filename, Boolean createSolutionConfigurations) [0x00000] in :0
at MonoDevelop.Ide.ProjectOperations.AddSolutionItem (MonoDevelop.Projects.SolutionFolder folder, System.String entryFileName) [0x00000] in :0
at MonoDevelop.Ide.ProjectOperations.AddSolutionItem (MonoDevelop.Projects.SolutionFolder parentFolder) [0x00000] in :0

The binding capabilities of Xamarin/MonoTouch are a key feature for developers using third-party iOS SDKs, typically written in Obj-C. Very little Obj-C code is presented in the official docs to correspond to the C# example code, which presents problems for developers using Xamarin who have not previously worked in Obj-C.

It would be great if the monotouch-samples/BindingSample project were more of a complete demonstration of binding to all kinds of Obj-C constructs, as outlined in the official docs, with corresponding Obj-C code for the C# binding examples (perhaps have the Obj-C definitions in comments before the C# code that binds to them, for comparison).