public Xamarin.Forms.Point GetTranslationInView(VisualElement view)
{
var renderer = view.GetRenderer();
if (renderer == null || renderer.NativeView == null)
{
//TODO -not sure why this isn't working on iOS. very weird.
return(new Xamarin.Forms.Point(0, 0));
}
return(NativeRecognizer.TranslationInView(renderer.NativeView).ToPoint());
}
public Point LocationOfTouch(int touchIndex, VisualElement view)
{
if (NativeRecognizer != null)
{
var renderer = view.GetRenderer();
return(NativeRecognizer.LocationOfTouch(touchIndex, renderer.NativeView).ToPoint());
}
else
{
return(Point.Zero);
}
}
public Point LocationInView(VisualElement view)
{
if (NativeRecognizer != null)
{
var renderer = view.GetRenderer();
return(NativeRecognizer.LocationInView(renderer.NativeView).ToPoint());
}
else
{
return(Point.Zero);
}
}
/// <summary>
/// The constructor which take an array of the enabled application gestures.
/// </summary>
/// <param name="enabledApplicationGestures"></param>
public GestureRecognizer(IEnumerable <ApplicationGesture> enabledApplicationGestures)
{
_nativeRecognizer = NativeRecognizer.CreateInstance();
if (_nativeRecognizer == null)
{
//just verify the gestures
NativeRecognizer.GetApplicationGestureArrayAndVerify(enabledApplicationGestures);
}
else
{
//
// we only set this if _nativeRecognizer is non null
// (available) because there is no way to use this state
// otherwise.
//
SetEnabledGestures(enabledApplicationGestures);
}
}
public void SetTranslationInView(Xamarin.Forms.Point translation, VisualElement view)
{
var renderer = view.GetRenderer();
NativeRecognizer.SetTranslation(new CGPoint(translation.X, translation.Y), renderer.NativeView);
}
public Xamarin.Forms.Point GetVelocityInView(VisualElement view)
{
var renderer = view.GetRenderer();
return(NativeRecognizer.VelocityInView(renderer.NativeView).ToPoint());
}
