Creating a Scorecard App with .NET MAUI – Part 1: Initial Creation

This is the first in a series of blogs about creating an app using .NET MAUI. All code can be found in my GitHub repo. I haven’t yet had the chance to create a full app using .NET MAUI, the evolution of Xamarin Forms. So I thought a scorecard app would be a good starting […]

Using ngrok to debug your API’s from your Xamarin Forms App

Sometimes, you want to see what is going on when your nice shiny new App is supposed to connect to your awesome API and get some data from it/to it. Unfortunately – your App will (mostly) not connect to your API when it’s running on localhost. Android provides a nice little get around by using […]

Xamarin.Forms Build Errors

This post is for me to track issues (and hopefully solutions) to build errors that occur when trying to build and publish apps. iOS “codesign” exited with code 1 This usually pops up when the certificate or provisioning profile being used to build the app has expired. Check your KeyChain or Apple account and generate […]

DDO Puzzles

The “XamlCTask” task failed unexpectedly

I started seeing this error while setting up my Azure DevOps build pipeline to run under different environments. And I found a lot of posts about it while searching for the cause of the issue. Quite a few mentioned that the Xaml had an error causing the issue. But I could build the app fine […]

Recognising when an item updates within an Observable[Range]Collection

I’m currently working on an app that needs to show the pictures and videos held on the user’s device for them to select from. I came across this great post by @XamBoy that I have used to get the media and save it in an ObservableRangeCollection. NB an ObservableRangeCollection is an object that inherits from […]

Xamarin Forms Converters

I love Converters in Xamarin Forms. They give you a nice, easy way to display something through your XAML based on a value in your binding data. And they are so easy to set up. All converters inherit from IValueConverter and must implement two methods: Convert and ConvertBack.

Mimicking a modal in Xamarin.Forms

Control Templates are a versatile element in Xamarin Forms. A good description can be found in the Microsoft documentation. Recently I wanted to try and save some screen space on an app where I have some help text that, especially on smaller phones, takes up more room than I would like. Using a Control Template […]

Xamarin.Forms & a Cheat Flyout

I’ve been brought in to help on a customer app, written in Xamarin Forms. The app is pretty much complete and ready to go live. On the home page, I was asked to add a flyout menu. Normally, a flyout menu would suggest a Master-Detail setup or even the new AppShell, but the app is […]

Xamarin.Forms Shell – Expanding with tabs

In my previous post, I set up a Xamarin Forms Shell project and had the basic Flyout Menu working. Now I want to expand on that. This post will look at how tabs are implemented with Shell. I’ve fleshed out my Flyout Menu items to include the remaining categories for the puzzles, adding the associated […]