Recently, I had to implement an Azure Topic subscription within my Xamarin app. AzureTopicListener The code below is what I built to get my Xamarin app to subscribe to Azure topic that relies on a filter rule: Test Here's a test that I wrote:
Implementing a custom Checkbox control
Building a Custom Checkbox Control This post is a code dump for a custom checkbox control. There's four main parts for this: Custom Control * Bindings * XAML Host Page * XAML * Viewmodel Bindings XAML Host Page Viewmodel
Azure Functions with Azure Service Bus
Intro Azure Functions can be executed via an Azure Service Bus trigger. In this post I provide an example for how I was able to publish a message to a queue as well as a topic. AppConfig An app config file is great for hosting connection strings as well as other key/value pairs. Here’s an …
Deploying EventStore to Azure Kubernetes
Prerequisites I used this link as a guide to install the tools required for deploying EventStore to Azure. A description of the tools needed are as follows: Kubectl: Kubernetes command-line tool Helm: Kubernetes package manager Azure CLI: Azure command-line tool EventStore Deployed on Azure I observed the following resources created in Azure after executing the …
Xamarin.Forms: Ratings Interface
I recently implemented a Ratings user interface for a Xamarin.Forms app: Here's the XAML for the Rate interface: Here's the ValueConverter implementation: Here's the viewmodel property and command:
Xamarin.Forms: ShellContent Navigation
Intro I came across a scenario in which my app exposed multiple methods for navigating to a particular page. Method 1: XAML One exposed method was from the app menu in which the navigation was implemented in XAML: Method 2: Code-behind of Initial page Another exposed method was to perform navigation from another page's code-behind: Method …
F#: Implementing a Countdown Timer
I wrote the following F# code to implement a countdown timer: Here's the UI that reflects the countdown timer:
Xamarin.Forms: Conditional StringFormat
The following is a technique used for formatting data-bound text within XAML: Here's the result:
F#: GPS Midpoint and Distance functions
I scoured the internet and hacked together some F# functions. These functions include the following: 1. Calculate distance between two coordinates 2. Calculate midpoint between two coordinates Here's the code I cobbled together:
Talking to John (A) De Goes
Discussing Functional Programming:
