Xamarin Blueprints

Building a CustomRenderer for native gestures

Now we need to handle swipe left and right gestures for each mobile platform. Unfortunately, Xamarin.Forms doesn't offer a cross-platform feature for swipe gestures, so we need to implement this ourselves. In order to do this, we are going to build a CustomRenderer. Start by adding a new file to the Controls folder called GestureView.cs and implement the following:

public class GestureView : View { public event EventHandler SwipeLeft; public event EventHandler SwipeRight; public event EventHandler Touch; public void NotifySwipeLeft() { if (SwipeLeft != null) { SwipeLeft (this, EventArgs.Empty); } } public void NotifySwipeRight() { if (SwipeRight != null) { SwipeRight (this, EventArgs.Empty); } } public ...