Android 12 introduced some breaking changes on its security stack. Google is slowly dropping Bauncy Castle java security stack in favor of Conscrypt security java layer. At one of my clients I had some strange situation: on the latest Android 12 (API level 31) testing, some apps stop working and start throwing following exception: Key […]
In this blog post, I will show you how to open external application from Xamarin.Forms application. My demo application will try to open locally installed application, otherwise it will open app store web page where app can be downloaded and installed. So, let’s start. First, I create Xamarin Forms application targeting Android and iOS. In […]
Today, I will present Xamarin Forms (XF) mobile application (iOS and Android) which talks to the vehicle. I will present demo app which reads vehicle speed, engine revolutions per minute-RPM and some other data, such as engine temperature. For that I will use: Xamarin Forms as mobile development framework, On-board diagnostics – ODB2 as car […]
A little bit of background. Bluetooth is a wireless technology standard used for exchanging data between fixed and mobile devices over short distances using short-wavelength UHF radio waves in the industrial, scientific and medical radio bands, from 2.402 GHz to 2.480 GHz, and building personal area networks. It was originally conceived as a wireless alternative to […]
Every application need some kind of logging or monitoring system. Monitoring can be used for tracing errors and exceptions, for analyzing of app usage, for finding hard-to-trace bugs in “production environment”, for storing some other runtime data interested for later analysis, and similar. In general and very commonly, .NET desktop apps use some kind of […]
Xamarin Forms development stack is awesome framework for developing cross-platform mobile applications. On one hand, being Xamarin developer has many benefits over other mobile development stacks. But, on the other hand, developing cross-platform application can be frustrating, because I need to know internals and tricks for all targeting platforms. One of the tasks every developer […]
The Android App Bundle (AAB) is Android’s new, official publishing format. It offers a more efficient way to build and release your apps. AAB enables easier deliver of a great experience in a smaller app size, which can improve installation process.
In this blog post I will show how to install AAB-based Android application onto locally connected device.
To start with – what is Android App Bundle (AAB)? According to Google, the Android App Bundle is Android’s new, official publishing format that offers a more efficient way to build and release your app. The Android App Bundle lets you more easily deliver a great experience in a smaller app size, which can improve […]
Android ecosystem has huge numbers of libraries which can be used in Android-based applications. Technically, these libraries are files with .jar or .aar extensions. When developing Android application with Java these libraries can be directly included/linked in the application and used. Of course, re-usage of these java-based libraries in Xamarin Forms is possible, but the […]
When unit testing Xamarin Forms, sooner or later you hit at “You MUST call Xamarin.Forms.Init()” problem. In this blog post I will investigate one way how to deal with this issue.