Mobile@Heart

This is the first post in a series that covers creating a Xamarin.Forms app and an API, both secured by Azure AD B2C, detailing the Azure configuration and the necessary code. The first part of this process is setting up AD B2C. To keep the number of variables in

Wow - it's been so long since I blogged that I had to jump through security barriers to get back into my account! I'm stepping back into the fray with a series of posts covering authentication using Azure AD B2C, integrating this into a Xamarin.Forms app and using it

If you’re using ListViews and are targeting Android then read on. There are some things that may be impacting you, namely: “ListView blank cells when CachingStrategy=”RetainElement” on Android: https://github.com/xamarin/Xamarin.Forms/issues/6721 …which has been closed by this one: https://github.com/xamarin/Xamarin.

Async programming in C# is something that's been covered in detail by a number of people (google Brandon Minnick or Filip Ekberg), but it's still something I see misused on a regular basis, so here is a very brief overview of a couple of traps to avoid. Consider the following

A common scenario in apps is to want users to sign in before they get access to the features and functions of the app. In order to sign in, users must first register, may want to change their password, and at some stage some of them will forget their password

A short while back, fellow Xamarin MVP Michael Ridland (@rid00z) published a great post here: http://www.michaelridland.com/xamarin/taskcompletionsource-xamarin-beautiful-async/ on using TaskCompletionSource to 'mimic' async functionality and allow you to await things that you otherwise wouldn't be able to. If you're using this to wrap calls to web

Wow - it's been a long time since my last post. I've been very busy with something that I hope to chat about before too long... In the meantime, here are some thoughts on using the Xamarin.Forms SearchBar control with Mvvm. Firstly, there's a great, simple explanation of the

If you're trying to do this as per my previous post here GHOST_URL /post/2014/07/26/using-messageingcenter-in-xamarin-forms-for-viewmodel-to-viewmodel-navigation.aspx and are getting this error: *System.InvalidOperationException: Collection was modified; enumeration operation may not execute. * ...then you may be tripping over this: https://bugzilla.xamarin.com/show_bug.cgiand ?id=

If you're using Xamarin.iOS and are working with the Unified API (which you should be!) you may be having issues with the current SQLite NuGet packages. There's an issue that you may have already worked around, but in case you haven't and are seeing the error below when trying

It was great fun speaking on Xamarin at TechEd last week. Thanks to all who were able to attend, and extra thanks to those who completed the evaluation and left some feedback. Special thanks also to the staff at White Clarke and the regulars at #SydMobNet who sat through my

Some great sessions today- here are some of the highlights: Think Like a Hacker! This was one of the most eye opening for many, with Darren Cathey going into great detail on security and protection against app hacking techniques to a packed room. These figures were quoted: Off the top

So here are today's announcements, along with links to find out more about each. Partnership with IBM Fruits of this partnership include: * IBM MobileFirst SDK for Xamarin, a pre-built library that Xamarin and IBM devs can include in their apps to connect, secure and manage apps using IBM Worklight * IBM

Today's sessions went into a lot more detail, which was great. Several of them were standing room only. The Enterprise Track talks on cloud services, data synchronisation and mobile security were particularly useful, as were the corridor / breakfast / lunch chats with Xamarin techies and other users. There's nothing like having

A great start to the conference with day 1 of the training today. Everything's very slick and well organised - even the snacks supplied are healthy. If I have enough of those I might even be up to joining Craig Dunn on his organised run on Thursday morning (no promises

At last month’s meetup of #SydMobNet in North Sydney I spoke about some of the updates and new features available in Xamarin 3, and Filip Ekberg (@fekberg) gave a great presentation on Xamarin.Forms. You can see videos of the presentations here: Introduction to Xamarin and New Features in

This post: http://blog.alectucker.com/post/2014/05/02/cross-platform-azure-mobile-services-with-xamarin-and-mvvmcross.aspx [https://blog.alectucker.com/post/2014/05/02/cross-platform-azure-mobile-services-with-xamarin-and-mvvmcross.aspx] detailed how to set up and use Azure Mobile Services from a portable class library (PCL) in a Xamarin project with the help of MvvmCross. Since I wrote

When following the MVVM pattern your viewmodels should not communicate with each other directly, meaning no interdependencies. Navigation on the different platforms is from one view to another but we generally want to take control of the navigation structure at viewmodel level when coding cross platform apps (although admittedly, Xamarin

Introduction and Prerequisites The aim of this article is to get an app up and running across the three platforms, with all calls to Azure Mobile Services made from a cross platform portable class library (PCL), highlighting and resolving all the gotchas you might hit on the way. It assumes