protected virtual void Dispose(bool disposing)
{
if (_disposed || !disposing)
{
return;
}
_disposed = true;
SetVisualElement(_visualElement, null);
_defaultShape = null;
if (_shapeManager != null)
{
_shapeManager.Dispose();
_shapeManager = null;
}
if (_renderer != null)
{
_renderer.ElementChanged -= OnRendererElementChanged;
_renderer = null;
}
if (_inkTouchController != null)
{
_inkTouchController.CancelInkTouchProcessing();
_inkTouchController?.Dispose();
_inkTouchController = null;
}
}
InkView GetInkViewAtTouchLocation(InkTouchController inkTouchController, CGPoint location)
{
var indexPath = CollectionView.IndexPathForItemAtPoint(location);
if (indexPath == null)
{
return(new InkView());
}
var cell = CollectionView.CellForItem(indexPath);
return(GetInkView(cell));
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
// Perform any additional setup after loading the view, typically from a nib.
Title = "Material Components for iOS";
if (UIDevice.CurrentDevice.CheckSystemVersion(11, 0))
{
CollectionView.ContentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentBehavior.Always;
}
CollectionView.BackgroundColor = UIColor.FromWhiteAlpha(0.9f, 1);
inkTouchController = new InkTouchController(CollectionView)
{
DelaysInkSpread = true,
Delegate = this
};
inkTouchController.AddInkView();
}
private void UpdateRipple()
{
if (_renderer.NativeView is Card || _renderer.NativeView is ChipView || _renderer.NativeView is MButton)
{
return;
}
_shapeManager?.SetIsRippleEnabled(_backgroundElement.IsRippleEnabled);
if (_backgroundElement.IsRippleEnabled)
{
if (_inkTouchController == null)
{
_inkTouchController = new InkTouchController(_renderer.NativeView);
_inkTouchController.AddInkView();
}
InvalidateShape();
if (_inkTouchController?.DefaultInkView == null)
{
return;
}
_inkTouchController.DefaultInkView.UsesLegacyInkRipple = false;
if (_backgroundElement.RippleColor != Color.Default)
{
_inkTouchController.DefaultInkView.InkColor = _backgroundElement.RippleColor.ToUIColor();
}
}
else if (_inkTouchController != null && !_backgroundElement.IsRippleEnabled)
{
_inkTouchController.CancelInkTouchProcessing();
_inkTouchController?.DefaultInkView?.RemoveFromSuperview();
_inkTouchController?.Dispose();
_inkTouchController = null;
}
}
public bool ShouldProcessInkTouches(InkTouchController inkTouchController, CGPoint location) => CollectionView.IndexPathForItemAtPoint(location) != null;
