Since Q3 2011 we have changed the default drag API used. It allows creating more complex scenario as well as building MVVM friendly drag behaviors. However, it does not support drag arrow which, although not very popular feature is still used. Thus, when arrow was required, we have suggesting using legacy execution mechanism.
In this blog I will write how to create your own drag arrow using DragDropManager events. So, basically we will use AddDragInitialize, GiveFeedback and DragDropCompleted to create and control the arrow. We also use Popup to display it on the screen.
The arrow itself is located in Arrow class which derives from Content control and has its own template defined. Thus you can create custom arrow by simply adding new style to this control.
So, in order to use it you can just add the following lines in your code:
- Initialize ArrowService:
private void Application_Startup(object sender, StartupEventArgs e)
this.RootVisual = new MainPage();
ArrowService.DisplayDragArrow = true;
That way you have full control of arrow appearance and behavior. I hope you’ll like it.
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Tsvyatko Konov is the Lead of UI for Xamarin and UI for UWP team. He is keen on sharing technical experience through mentoring and team development as well as in publications and lectures. In his spare time, TK loves sailing and skiing.