protected override bool DrawChild(Canvas canvas, AView child, long drawingTime)
{
bool returnValue = base.DrawChild(canvas, child, drawingTime);
if (_scrimPaint != null && ((LayoutParams)child.LayoutParameters).Gravity == (int)GravityFlags.NoGravity)
{
if (_previousHeight != Height || _previousWidth != Width)
{
_scrimPaint.UpdateBackground(_scrimBrush, Height, Width);
_previousHeight = Height;
_previousWidth = Width;
}
_scrimPaint.Alpha = _scrimOpacity;
canvas.DrawRect(0, 0, Width, Height, _scrimPaint);
}
if (!_flyoutFirstDrawPassFinished && _flyoutContent != null)
{
if (child == _flyoutContent?.AndroidView)
{
_flyoutFirstDrawPassFinished = true;
}
if (this.IsDrawerOpen(_flyoutContent.AndroidView) != _shellContext.Shell.FlyoutIsPresented)
{
UpdateDrawerState();
}
}
return(returnValue);
}
void UpdateScrim(Brush backdrop)
{
_scrimBrush = backdrop;
if (_behavior == FlyoutBehavior.Locked)
{
SetScrimColor(Colors.Transparent.ToPlatform());
_scrimPaint = null;
}
else
{
if (backdrop is SolidColorBrush solidColor)
{
_scrimPaint = null;
var backdropColor = solidColor.Color;
if (backdropColor == null)
{
unchecked
{
SetScrimColor((int)DefaultScrimColor);
}
}
else
{
SetScrimColor(backdropColor.ToPlatform());
}
}
else
{
_scrimPaint = _scrimPaint ?? new Paint();
_scrimPaint.UpdateBackground(_scrimBrush, Height, Width);
SetScrimColor(Colors.Transparent.ToPlatform());
}
}
}
protected override bool DrawChild(Canvas canvas, AView child, long drawingTime)
{
bool returnValue = base.DrawChild(canvas, child, drawingTime);
if (_scrimPaint != null && ((LayoutParams)child.LayoutParameters).Gravity == (int)GravityFlags.NoGravity)
{
if (_previousHeight != Height || _previousWidth != Width)
{
_scrimPaint.UpdateBackground(_scrimBrush, Height, Width);
_previousHeight = Height;
_previousWidth = Width;
}
_scrimPaint.Alpha = _scrimOpacity;
canvas.DrawRect(0, 0, Width, Height, _scrimPaint);
}
return(returnValue);
}