Question

I’m trying to implement something in my app, I need to show an image, and let the user pinch in and out of the images.

I think its possible using the ScrollViewer, but I couldnt get it to work, help?

Answer 1

I hate to oversimplify this, but the WinRT XAML ScrollViewer has gesture manipulation built in.

You can see what I mean here. This might not be what you want. But it’s sure a simple approach and might fit a certain % of scenarios. Maybe even yours.

Controls that incorporate a ScrollViewer in compositing often set a value for ZoomMode in the default template and starting visual states, and it is this templated value that you will typically start with. Controls with a ScrollViewer as part of their composition typically use template binding such that setting the attached property at the level of the control will change the scroll behavior of the ScrollViewer part within the control. Otherwise, it may be necessary to replace the template in order to change the scroll behavior of a ScrollViewer part.