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René Ruppert - Senior Content Developer at Microsoft

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Category: Coding

Read secrets from Azure Key Vault in a .NET Core Console app

Posted onJuly 31, 2019July 31, 2019Leave a comment

Azure Key Vault, the thing on Azure that allows you to store secrets, certificates and manage private/public keys – I reckon you heard about it? If not, go check it out by looking at this wonderful free (yes, really FREE) >>>

CategoriesCoding, UncategorizedTagsazure, c#

Changing audio volume with Xamarin.Forms

Posted onDecember 14, 2018December 15, 20181 Comment

All platforms allow controlling the audio level and mobile devices have got hardware buttons and soft keys to do so. But how would you change the audio volume from within a Xamarin.Forms app? Recently, I had a discussion with somebody >>>

CategoriesCoding, XamarinTagsandroid, custom renderer, iOS, xamarin.forms

Allowing one specific controller inside of UINavigationController to rotate

Posted onSeptember 14, 2018Leave a comment

Time for an iOS related post about a requirement that bugged me in the past and it seems, quite a few people out there have similar issues: How can I have a UINavigationController based app, where all controllers are forced >>>

CategoriesCoding, XamarinTagsiOS, iPhone, orientation, xamarin

Say hello at the Dutch Mobile .NET Developers Meetup on Sep 27

Posted onSeptember 13, 2018September 13, 2018Leave a comment

On September 27 I will be presenting in beautiful Amsterdam at the Dutch Mobile .NET Developers Meetup! Details Join us for a fun evening during the Q3 Meetup! This time, Xamarin.University lecturer from Microsoft René Ruppert (@rene_ruppert) is our first >>>

CategoriesCoding, XamarinTagsazure, bots, dutch, microsoft, mobile, talk

Xamarin.Forms Slider: dynamically changing Minimum and Maximum value on Android won’t update indicator position

Posted onAugust 21, 20181 Comment

“Something’s wrong with the Slider in Xamarin.Forms…”, I heard somebody say. “…changing the min and max value does not correctly update the position of the knob on Android”, they continued. A bug in Xamarin.Forms? Who knows? It was enough to >>>

CategoriesCoding, XamarinTagsandroid, bug, dynamic, forms, slider, xamarin.forms

Programmatically connecting your Xamarin.iOS app to a wifi network using NEHotspotConfigurationManager

Posted onJuly 10, 20185 Comments

At Xamarin.University we offer office hours for our students. These are 30 minute sessions where we trainers discuss topics that are beyond the scope of our classes. Often, the questions are about a very specific topic and sometimes the initial >>>

CategoriesCoding, XamarinTagsapple, iOS, wifi, xamarin

A closer look at Xamarin.Essential’s SecureStorage

Posted onJune 21, 2018Leave a comment

If you are serious about mobile development with Xamarin/.NET or code sharing in general and have not heard or read about Xamarin.Essentials, you have definitely missed out on a great Nuget package. What’s it all about? Xamarin.Essentials is a collection >>>

CategoriesCoding, XamarinTagsencryption, essentials, password, security, xamarin

Android – handling screen rotation and different layouts using Fragments with Xamarin

Posted onJune 19, 2018Leave a comment

When I was asked if I could demo how to handle different screen sizes and rotation in Android, I created a small project which I’d like to share here. You can find the complete repo at Github. The demo uses >>>

CategoriesCoding, XamarinTagsandroid, rotation, screen size, xamarin

Launching an Android Activity of another APK

Posted onJune 19, 2018Leave a comment

We have discussed Android and its Activity system today. It is quite hard to grasp for an iOS guy like me; it feels…special. I certainly know how to start an activity within my own app and I understand the difference >>>

CategoriesCoding, XamarinTagsandroid, xamarin

My Personal Digital Treasure Chest – how Dosbox keeps Memories alive

Posted onJune 19, 2018June 19, 2018Leave a comment

I don’t know if this is only happening to me. But from time to time I find myself digging in my archived digital life. I have a folder on my hard drive called “Old Stuff” which resides under “Development”. It >>>

CategoriesCoding, Fun projectsTagsborland, c64, gaming, pascal, retro

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