protected virtual void UpdateFlyoutFooter()
{
if (_footerView != null)
{
var oldFooterView = _footerView;
_rootView.RemoveView(_footerView.PlatformView);
_footerView = null;
oldFooterView.TearDown();
}
var footer = ((IShellController)_shellContext.Shell).FlyoutFooter;
if (footer == null)
{
return;
}
_footerView = new ShellViewRenderer(_shellContext.AndroidContext, footer, MauiContext);
_rootView.AddView(_footerView.PlatformView);
if (_footerView.PlatformView.LayoutParameters is CoordinatorLayout.LayoutParams cl)
{
cl.Gravity = (int)(GravityFlags.Bottom | GravityFlags.End);
}
UpdateFooterLayout();
UpdateContentLayout();
UpdateContentBottomMargin();
}
protected override void Dispose(bool disposing)
{
if (_disposed)
{
return;
}
_disposed = true;
if (disposing)
{
_shellContext.Shell.PropertyChanged -= OnShellPropertyChanged;
if (_flyoutHeader != null)
{
_flyoutHeader.MeasureInvalidated -= OnFlyoutHeaderMeasureInvalidated;
}
if (_appBar != null)
{
_appBar.RemoveOnOffsetChangedListener(this);
_appBar.RemoveView(_headerView);
}
if (_rootView != null && _footerView?.PlatformView != null)
{
_rootView.RemoveView(_footerView.PlatformView);
}
if (View != null && View is ShellFlyoutLayout sfl)
{
sfl.LayoutChanging -= OnFlyoutViewLayoutChanged;
}
_contentView?.TearDown();
_flyoutContentView?.Dispose();
_headerView.Dispose();
_footerView?.TearDown();
_rootView.Dispose();
_defaultBackgroundColor?.Dispose();
_bgImage?.Dispose();
_contentView = null;
_flyoutHeader = null;
_rootView = null;
_headerView = null;
_shellContext = null;
_appBar = null;
_flyoutContentView = null;
_defaultBackgroundColor = null;
_bgImage = null;
_footerView = null;
}
base.Dispose(disposing);
}
protected virtual void OnViewSet(View view)
{
if (_shellContentView == null)
{
_shellContentView = new ShellViewRenderer(this.Context, view, _mauiContext);
}
else
{
_shellContentView.OnViewSet(view);
}
if (_shellContentView.PlatformView != null)
{
AddView(_shellContentView.PlatformView);
}
}
AView CreateFlyoutContent(ViewGroup rootView)
{
_rootView = rootView;
if (_contentView != null)
{
var oldContentView = _contentView;
_contentView = null;
oldContentView.View = null;
}
DisconnectRecyclerView();
var content = ((IShellController)ShellContext.Shell).FlyoutContent;
if (content == null)
{
var lp = new CoordinatorLayout.LayoutParams(CoordinatorLayout.LayoutParams.MatchParent, CoordinatorLayout.LayoutParams.MatchParent);
lp.Behavior = new AppBarLayout.ScrollingViewBehavior();
var context = ShellContext.AndroidContext;
var recyclerView = new RecyclerViewContainer(context)
{
LayoutParameters = lp
};
recyclerView.SetAdapter(new ShellFlyoutRecyclerAdapter(ShellContext, OnElementSelected));
return(recyclerView);
}
_contentView = new ShellViewRenderer(ShellContext.AndroidContext, content, MauiContext);
_contentView.PlatformView.LayoutParameters = new CoordinatorLayout.LayoutParams(LP.MatchParent, LP.MatchParent)
{
Behavior = new AppBarLayout.ScrollingViewBehavior()
};
return(_contentView.PlatformView);
}
protected override void Dispose(bool disposing)
{
if (_disposed)
{
return;
}
_disposed = true;
if (disposing)
{
Disconnect();
if (_appBar != null)
{
_appBar.RemoveOnOffsetChangedListener(this);
if (_headerFrameLayout != null)
{
_appBar.RemoveView(_headerFrameLayout);
}
}
if (_rootView != null && _footerView != null)
{
_rootView.RemoveView(_footerView);
}
if (View != null && View is ShellFlyoutLayout sfl)
{
sfl.LayoutChanging -= OnFlyoutViewLayoutChanging;
}
if (_headerView != null)
{
_headerView.LayoutChange -= OnHeaderViewLayoutChange;
}
if (_contentView != null)
{
_contentView.View = null;
}
_flyoutContentView?.Dispose();
_headerView?.Dispose();
_rootView?.Dispose();
_defaultBackgroundColor?.Dispose();
_bgImage?.Dispose();
_contentView = null;
_rootView = null;
_headerView = null;
_shellContext = null;
_appBar = null;
_flyoutContentView = null;
_defaultBackgroundColor = null;
_bgImage = null;
_footerView = null;
}
base.Dispose(disposing);
}