public bool HandleMotionEvent(IViewParent parent, MotionEvent motionEvent)
{
if (_isInViewCell || _element.InputTransparent || motionEvent.Action == MotionEventActions.Cancel)
{
return(false);
}
var renderer = parent as VisualElementRenderer <Xamarin.Forms.View>;
if (renderer == null)
{
return(false);
}
var type = parent.GetType();
if (type.Name.Contains("DefaultRenderer"))
{
try
{
// Let the container know that we're "fake" handling this event
var method = type.GetTypeInfo().GetDeclaredMethod("NotifyFakeHandling");
if (method != null)
{
method.Invoke(parent, null);
return(true);
}
}
catch (Exception) { }
}
return(true);
}
public bool HandleMotionEvent(IViewParent parent, MotionEvent motionEvent)
{
if (_isInViewCell || _element.InputTransparent || motionEvent.Action == MotionEventActions.Cancel)
{
return(false);
}
var rendererType = parent.GetType();
if (!_platformDefaultRendererType.IsAssignableFrom(rendererType))
{
return(false);
}
try
{
// Let the container know that we're "fake" handling this event
if (_platformDefaultRendererTypeNotifyFakeHandling != null)
{
_platformDefaultRendererTypeNotifyFakeHandling.Invoke(parent, null);
return(true);
}
}
catch { }
return(false);
}
public bool RequestFocus(global::Android.Views.View control, Func <bool> baseRequestFocus)
{
IViewParent ancestor = control.Parent;
var previousFocusability = DescendantFocusability.BlockDescendants;
LinearLayout cfl = null;
// Work our way up through the tree until we find a ConditionalFocusLayout
while (ancestor is ViewGroup)
{
cfl = ancestor as LinearLayout;
var found = ancestor.GetType().Name == "ConditionalFocusLayout";
if (cfl != null && found)
{
previousFocusability = cfl.DescendantFocusability;
// Toggle DescendantFocusability to allow this control to get focus
cfl.DescendantFocusability = DescendantFocusability.AfterDescendants;
break;
}
ancestor = ancestor.Parent;
}
// Call the original RequestFocus implementation for the View
bool result = baseRequestFocus();
if (cfl != null)
{
// Toggle descendantfocusability back to whatever it was
cfl.DescendantFocusability = previousFocusability;
}
return(result);
}
