Xamarin on Sam Debruyn

James Montemagno on Euro Tour

Thu, 24 Oct 2019 00:00:00 +0000

In 2019 James Montemagno, Microsoft’s Xamarin evangelist did a through Europe. I organized this event in Mechelen together with MADN and VISUG .

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Tips for developing Android JobScheduler Jobs

Wed, 17 Oct 2018 08:01:27 +0100

If your app has to sync some data in the background, you’ll definitely want to use the Android JobScheduler API to schedule a background job.

There are a few helpful libraries that make this task easier, but you can get away with using the JobScheduler API itself.

Xamarin.Forms: The Now and Future & Building Fast Mobile Apps Fast

Thu, 04 Oct 2018 00:00:00 +0000

On October 4th, 2018, I organized a Xamarin meetup in Edegem. I also gave a talk at this meetup about building mobile apps fast with MugenMvvmToolkit.

On this meetup I was joined by Microsoft’s own David Ortinau. He gave a talk about the current state and future of Xamarin.Forms.

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Xamarin Dev Days 2017 Edegem

Sat, 18 Nov 2017 00:00:00 +0000

In 2017 I organized a local edition of the Xamarin Dev Days in Edegem. I organized the event, gave a technical talk and led the workshops. Developers from all over Belgium attended to learn about Xamarin.

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Workshop: getting started with Xamarin

Tue, 27 Jun 2017 00:00:00 +0000

In 2017 I gave a workshop (in Dutch) about getting started with Xamarin. The workshop was part of a series of workshops named Summer of Technology.

Optimize memory usage in Xamarin apps

Fri, 02 Jun 2017 16:32:42 +0200

This post has been translated to Russian by Denis Gordin . You can read the Russian version on the Russian website TechMedia . Thanks, Denis!

Xamarin is amazing in how it allows .NET developers to write apps for Android, iOS, MacOS… in C#. But that amazing capability comes with a prize and even the most simple apps can suffer from high memory usage. Let’s find out what happens and what we can do about it. The majority of my examples are based on Xamarin.Android, but you’ll quickly notice how this also applies to Xamarin.iOS.

A few common issues with .csproj files in Xamarin apps

Thu, 25 May 2017 21:21:16 +0200

Usually you don’t need to manually edit .csproj files for your apps and most developers don’t even know what’s going on inside this file. However, sometimes you might run into issues related to this file where Visual/Xamarin Studio can’t help you.

The case of the missing references

At my current client our solution consists of more than 10 projects:

Beautiful Xamarin.Forms and Serious Tech talk

Tue, 14 Mar 2017 00:00:00 +0000

In 2017 I hosted this edition of the Belgian Xamarin meetup group with 2 talks about Xamarin.Forms and Xamarin.Android.

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Diagnosing memory issues with the Xamarin profiler

Sun, 04 Sep 2016 16:29:47 +0200

The Xamarin profiler is a must-have tool for every Xamarin developer. The profiler comes with a Xamarin business or enterprise license and is available as a standalone installer at xamarin.com/profiler .

To get started, make sure a debug version of your app is installed on a device or a simulator (works both for Android and iOS). Another way to start the profiler is to open the profiler via Run > Start Profiling in Xamarin Studio or Analyze > Xamarin Profiler in Visual Studio. Choose the Memory profiling template, make sure the correct app/activity is selected and press the red record button to start profiling.

Creating a Xamarin.iOS binding project for dummies

Mon, 29 Aug 2016 11:10:40 +0200

What you need

Experience with Xamarin.iOS
Xamarin Studio for Mac
An empty binding project (just create a new project in Xamarin Studio)

A very short intro to Objective-C for C# developers

Oh god, Obj-C, the most incomprehensible programming language in the app dev world. You simply can’t create an iOS binding project without some very basic knowledge of Obj-C. So here goes, an intro to Obj-C for C# developers.

Fix common binding errors with MVVM Light on Xamarin

Tue, 22 Mar 2016 20:02:53 +0100

There isn’t much documentation available for MVVM Light when it comes to Xamarin.Android and Xamarin.iOS. There are several overloads for the SetBinding method and using the wrong overload causes TargetInvocationException or TargetException like this one . It’s also possible that your bindings don’t update anymore after you set one binding using an incorrect syntax.

Dependency injection with Autofac and MVVM Light in Xamarin

Mon, 22 Feb 2016 18:59:37 +0100

You gotta have MVVM

A developer and his tools are inseparable. We all like SOLID and every (.NET) developer has his or her favourite dependency injection tool. There is a lot to choose from. I like Autofac because of the way it handles modules, the lifetime of a type and how it registers types.