partial void ChangeViewScroll(double?horizontalOffset, double?verticalOffset, bool disableAnimation)
{
if (_scrollableContainer != null)
{
// iOS doesn't limit the offset to the scrollable bounds by itself
var point = new CGPoint(horizontalOffset ?? HorizontalOffset, verticalOffset ?? VerticalOffset);
var newOffset = point.Clamp(CGPoint.Empty, _scrollableContainer.UpperScrollLimit);
_scrollableContainer.SetContentOffset(newOffset, !disableAnimation);
}
}
private bool ChangeViewScrollNative(double?horizontalOffset, double?verticalOffset, float?zoomFactor, bool disableAnimation)
{
if (_scrollableContainer != null)
{
// iOS doesn't limit the offset to the scrollable bounds by itself
var point = new CGPoint(horizontalOffset ?? HorizontalOffset, verticalOffset ?? VerticalOffset);
var newOffset = point.Clamp(CGPoint.Empty, _scrollableContainer.UpperScrollLimit);
_scrollableContainer.SetContentOffset(newOffset, !disableAnimation);
if (zoomFactor is { } zoom)
{
ChangeViewZoom(zoom, disableAnimation);
}
// Return true if successfully scrolled to asked offsets
return((horizontalOffset == null || horizontalOffset == newOffset.X) &&
(verticalOffset == null || verticalOffset == newOffset.Y));
}
return(false);
}