Xamarin.Forms and panorama in a Windows Phone app
One common scenario when building an app is that we want to use tabs on iOS and Android and a Panorama on Windows Phone. Xamarin.Forms has a control called TabbedPage that render tabs on iOS and...
View ArticleCrossplatform and storage strategies
Many applications need to store data related to the application. If you’re building applications for multiple platforms the APIs for storage is different. Following five storage types is the most...
View ArticleMonitor an app with Xamarin Insights
I Think it’s really important to monitor apps. Of course the most important part is to log errors in the app. But I also like to track how my users uses my apps. For the lastest app I have built I have...
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Grouping a ListView – Xamarin.Forms
In many cases when you want a list of items you want to group them in the list. To use groups in a ListView with Xamarin.Forms is very easy. Below are screenshots from Android, iOS and Windows Phone...
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Using Context Actions in Xamarin.Forms ListView
One of the news in Xamarin.Forms 1.3 is what Xamarin call context actions. With context actions you can make a ListView much more richer. What you can do is to add a menu to every row in the ListView....
View ArticleBuilding a ScreenshotManager to capture the screen with code
This blog post will show you how to build a screenshot manager to use from shared code when building apps with Xamarin for Windows Phone, Android and iOS. First of all we need to create an interface in...
View ArticleXamarin.Forms: Placeholder text color password box Windows Phone
When using the Entry control in Xamarin.Forms with IsPassword set to true the text color property will not affect placeholder text on Windows Phone. To solve this you need to create a custom renderer...
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Get started with Xamarin.Forms for Windows
Xamarin has finally released support for Windows apps using WinRT. This make it possible to write apps for Windows Phone 8.1 (the stable release uses Windows Phone 8 Silverlight but can be upgraded to...
View ArticleTechDays 2015
Den 20 oktober börjar TechDays med förkonferens, jag och Johan Karlsson kommer att dela med oss av våra kunskapar gällande cross-platformutveckling. Att bygga cross-platformlösningar är alltid en stor...
View ArticleHow to succeed with Xamarin.Forms
Xamarin.Forms makes it possible to write UI for all the major mobile platforms, iOS, Android and Windows Phone with one shared code base. Many developers think that Xamarin.Forms isn’t is good enough...
View ArticleDeveloping apps with mono
WordRoom started as a Windows Phone project, the third client we started to develop and the first one we released was for Windows 8. We developed the windows 8 relative fast because we could reuse a...
View ArticleSize limit on app download when using 3G
iOS and Windows Phone has size limit on how big apps you can downloaded when you’re not connected to a Wi-Fi-network. Windows Phone has a limit on 20 Mb and iOS has 50 Mb. Android has not that type of...
View ArticleBeyond the Tiles
Monday was me, Johan (@johankson) and David(@d_andersson) visiting Microsoft for a seminar about design, primary for Windows 8 and Windows Phone. Arturo Toledo (@arturot), Alex Toledo (@toledoal) and...
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Travelling with my Lumia
For a couple of weeks was me, my girlfriend and a friend visiting Unites States, we visiting New York and drove around by car at the west side of the country. Under the two weeks we was there we...
View ArticleModern UI icons
If you searching for icons for your app or website, check out http://modernuiicons.com/. There are over 1000 icons designed for your app or website. It is a very good library when building modern UI...
View ArticleGlyphicons on Windows Phone
If you using Twitter Bootstrap and glyphicons and having problem that the glyphicons is not showing up on Windows Phone you need to add the MIME-type to your web.config. <System.webServer>...
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Windows Azure Mobile Services in Portable Class Library
In my current project, a multiplayer game for mobile devices I only using Windows Azure Mobile Services as backend. The game will be available for multiple platforms and I will use Xamarin for iOS and...
View ArticleWorkaround for invalid markup problems when developing for Windows Phone
Every time I open up a Windows Phone Project in Visual Studio 2013 I got a lots of errors in the XAML markup. The designer shows “Invalid markup” and the error list is long. I found a workaround for...
View ArticleBuild 2014
Now we are in San Francisco for the BUILD Conference that starts on Wednesday. It was a long flight from Sweden yesterday, but I used the time for coding. Have to say that Surface Pro is an excellent...
View ArticleAuthentication for REST calls with HTTPClient to Azure MobileServies
In a current project I working with an app that uses a .NET Backend in Azure Mobile Services. Backend is a WebAPI. On client side I have all the code for networking in portable class library so I can...
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Running Windows Phone emulator in Parallels on OS X
If you’re developing apps for all the major mobile platforms i guess you are using a Mac since that is the only way you can build iOS apps. If you’re using Parallels to run Windows for Windows Phone...
View ArticleTechDays 2014
Den 19-20 november (17-20 november med pre-conf inkluderat) anordnas utvecklarkonferensen TechDays av Microsoft. Jag och min Sogeti- och IO2GameLabs kollega Johan Karlsson har fått äran att vara med på...
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Building a tabbed app using Xamarin.Forms
Xamarin.Forms is one of the biggest news with Xamarin 3. With Xamarin.Forms you can build UI for 3 platforms (Windows Phone, iOS and Android) with one shared codebase. What is unique for Xamarin.Forms...
View ArticleHandle Windows Phone back button pressed when using MVVM
When I building an app with a MVVM framework I want to have my view models in a portable class library so I can use same view models for the Windows Phone app as for the iOS and Android app when...
View ArticleExtend Label in Xamarin.Forms with a font color property
The label control in Xamarin.Forms does not have a FontColor property. But the control is easy to extend. First create a new class that inherits from Label. Create a FontColor property of type string....
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