Category

Xamarin

Fixing AppCenter Android Build Error: /usr/bin/jarsigner failed with return code: 1

Error: /usr/bin/jarsigner failed with return code: 1 This issue bugged me for an entire day. The real sad thing about it is, is that I faced this same issue some months ago… So after I set up my AppCenter Android… Continue Reading →

Using Android Linkify to add inline links to a Xamarin Forms Label

A loooong time ago (at least, this is what it feels like…), I created this custom Xamarin Forms control HyperlinkLabel (Blog post, GitHub repo) that can show one or multiple hyperlinks inline with other text. The links can be defined… Continue Reading →

Image classification with Azure Custom Vision Service and CoreML

In my previous blogpost I created a small PoC to show you how to work with the Azure Custom Vision Service and WinML. In this blogpost we are going to take the same model that I have trained back then,… Continue Reading →

Creating a HyperlinkLabel in Xamarin Forms

I needed a simple control that could show a hyperlink inline with other text and I’d like the link to be defined in markdown. In short, something like this: HyperlinkLabel In Xamarin.Forms, I created a HyperlinkLabel class which isn’t anything more… Continue Reading →

Demos talk “Realm, the cool new kid in Xamarin town”

Last week I gave a talk about Realm at the Xamarin Expert Day in Cologne, Germany. Some people asked me if I could put the code of the demos, that I used in this talk, on a public GitHub Repo. Sharing is caring, of… Continue Reading →

Sharing a Realm via a QR code using ZXing

Realm offers a nice technique to share Realms with other users using the PermissionOffer and the PermissionOfferResponse objects. The idea is that you can provide a token that an other user can use to connect to your data store. In this blogpost we will use this… Continue Reading →

Bind to Xamarin Picker but only update value after hitting Done on iOS

Sometimes you stumble upon these gems that you didn’t know they existed. Like I did today… The ‘problem’ with the Picker You might have noticed that when you are binding to the SelectedItem of a Picker in Xamarin Forms, that on iOS… Continue Reading →

Dynamically binding RESX Resources in Xamarin Forms

Localizing your app isn’t the most fun thing to do. In the last couple of years I’ve seen and tried various ways of implementing multi language support. In this blogpost I would like to share how I recently set up localization… Continue Reading →

Trigger PropertyChanged of indexed property in Xamarin Forms

Xamarin Forms supports binding to indexed properties. But do you know how to trigger a PropertyChanged event on such a property so that the binding engine gets the updated value? Binding to indexed properties Binding to an indexed property in… Continue Reading →

Setting up a Realm Object Server in Azure and connect to it with Xamarin Forms

Lately I’ve been playing around with Realm. Realm is a very cool platform that allows us to easily build mobile apps that use things like local data storage, two-way data synchronisation, real time collaboration, … Things that typically require some coding… Continue Reading →

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