A simple developer's journey

  iOS 15, transparent TabBar Since the release of iOS 15, some people had regression with their app, particularly because of the TabBar component . In iOS 15, by default (while using Xamarin Forms), the TabBar comes with a Transparent background and the page's content can scroll behind this TabBar. So it's not user friendly  and I presume for all existing apps, it's not beautiful. See the next picture: iOS 15, transparent TabBar You can solve this problem by many ways, but the fastest solution / workaround that I found is the following: => manage iOS SafeArea directly into your XAML to constrain page's content to fit the free space of the page.  You can do that in XAML in 2 lines of code: <?xml version="1.0" encoding="UTF-8" ?> <ContentPage xmlns:ios="clr-namespace:Xamarin.Forms.PlatformConfiguration.iOSSpecific;assembly=Xamarin.Forms.Core" ios:Page.UseSafeArea="True" ... iOS 15 using Page.UseSafeArea = true As Ta

I already talk about the really convenient and powerful lib FFLoadingImage for Xamarin Forms (here: FFLoadingImage for Xamarin Forms (quick overview) ).  This library gives you a lot of tools to display and manage your application's pictures. Loading pictures from a shared assembly You can load pictures from different sources like:  - an HTTP Url  - An iOS or Android embedded resource picture. In this case you will need to duplicate the pictures for each specific platform project.  But did you know that you can also load images from a custom assembly like a SHARED Xamarin Forms assembly ?  It's pretty simple: Set your picture's build action to: Embedded Resource Shared assembly containing your pictures Picture's build action: Embedded Resource Then use the following syntax In your xaml file where you want to display the picture, just use the following syntax. FFLoadingImage library will do the rest to load and display correctly images for each native platforms:

[Xamarin Forms Shell App + Firebase iOS Auth plugin v. 6.9.2] Last day I added the Google Firebase functionalities to my project, but unfortunately I add some errors just after installing the Firebase Plugin. > Xamarin Forms (Shell app) + iOS Firebase errors adding latest package: ....iOS/MTOUCH: Error MT5210: Native linking failed, undefined symbol: _GULIsLoggableLevel. Please verify that all the necessary frameworks have been referenced and native libraries are properly linked in. (MT5210) (*.iOS)  I found some solutions, and finally the iOS SDK worked with my Xamarin Forms Shell app... Unfortunately, with Xamarin Forms, we still take too much time to solve this kind of problem.  What did I do ? iOS project properties => Set the "entitlements file property" to a default file (the *.plist file can be empty): => iOS Build options: - Add 'mtouch' argument: --registrar:static - and try to set linker behavior to SDKs only Then initialize Firebase in your code:

I- Introduction II- Docker presentation III- A simple [MySQL / phpMyAdmin] docker example IV- Docker in Windows, how to ? V- Simple Docker glossary VI- Links I- Introduction There are enough websites to introduce to you Docker in detail. This presentation will just remind you the key concepts of Docker. In my posts, I will always talk about Docker embedded in the Windows environment but I presume, all given information will also be valid for Linux and other OS. So, what are we going to see in this post ? As I said, we will remind the key concept of Docker, then we will list some common use cases and all the basic related commands. I will share some links at the end of the post if you want to go deeper with Docker. Let's go ! II- Presentation Docker is 'just' a technology used to virtualize environments (named containers ) in order to run specific applications. It acts like traditional virtual machine but it's much more lightweight. Take

If as me, you don't really understand all subtleties between .NET Core and .NET Standard , I suggest you to have a look at the following article. It explains some history about .NET Framework and how .NET Standard is born. >>  Xamarin blog: A brief history of .NET Standard Which version to use ? For me, an important point to master for my own projects, is to know which platforms I can reach with a specific .NET Standard or .NET Core library. The following table illustrate the compatibility between each .NET implementation: For instance, - if you build a Xamarin Android v. 7.0 application, you could use versions 1.0 up to 1.6 .NET Standard librairies into your project - or if you have a .NET Standard v. 1.4 library, you could only build Android  v. 7.0  applications ( not v. 8.0) Intersting References about .NET Standard: Xamarin blog: A brief history of .NET Standard .NET Standard official website .NET Standard, table version video

New 'Xamarin' menu available If you are a Xamarin developer, you will be happy to know that the "full" Xamarin Platform's documentation is now available on microsoft.com website.  This website looks really clear , so it should be easy to find what you need... Microsoft documentation portal:   https://docs.microsoft.com If you select the "Xamarin" menu, you will be redirected to the following page: This is the entry point to many chapters describing the platform like: - technical / language documentation - UI (with XAML) documentation but you will also find: - deployement tutorials - mobile continuous delivery tutorials - data / database articles - code samples - and so much more ! So let's go coding Xamarin !

This post is made for those (like me) who like image processing , web development and maybe, for those who want to learn new programming technics ... - I will make you discover p5.js , a javascript library specialized in graphical creation for your web browser ! - I will also talk about the the Youtube channel "The Coding Train" presented by Daniel Shiffman. A lot of its videos are based on P5.js. It was for me a great source of inspiration and made me discover javascript (because I'm a newbie with JS...) So I'm pretty sure, you will learn a lot too... - Finally I will present you my personnal example of what I did with P5.js. It's about an old retro fire effect (used in demoscene few years ago) :) So let's begin with p5.js ! I- What is P5.js ? a- Presentation As I mentionned it previously, P5.js is a graphical Javascript library. With it, you will be able to make great effects in your web pages in a few minutes.  This lib