void Destroy()
{
((IShellController)_shellContext.Shell).RemoveAppearanceObserver(this);
if (_shellContent != null)
{
((IShellContentController)_shellContent).RecyclePage(_page);
_page.Handler = null;
}
if (_shellPageContainer != null)
{
_shellPageContainer.RemoveAllViews();
if (_root is ViewGroup vg)
{
vg.RemoveView(_shellPageContainer);
}
_shellPageContainer.Dispose();
}
_root?.Dispose();
_toolbarTracker?.Dispose();
_appearanceTracker?.Dispose();
_appearanceTracker = null;
_toolbarTracker = null;
_toolbar = null;
_root = null;
_viewhandler = null;
_shellContent = null;
_shellPageContainer = null;
}
public override AView OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
if (_shellContent != null)
{
_page = ((IShellContentController)_shellContent).GetOrCreateContent();
}
_root = inflater.Inflate(Controls.Resource.Layout.shellcontent, null).JavaCast <CoordinatorLayout>();
var shellContentMauiContext = MauiContext.MakeScoped(layoutInflater: inflater, fragmentManager: ChildFragmentManager);
Maui.IElement parentElement = (_shellContent as Maui.IElement) ?? _page;
var shellToolbar = new Toolbar(parentElement);
ShellToolbarTracker.ApplyToolbarChanges(_shellContext.Shell.Toolbar, shellToolbar);
_toolbar = (AToolbar)shellToolbar.ToPlatform(shellContentMauiContext);
var appBar = _root.FindViewById <AppBarLayout>(Resource.Id.shellcontent_appbar);
appBar.AddView(_toolbar);
_viewhandler = _page.ToHandler(shellContentMauiContext);
_shellPageContainer = new ShellPageContainer(Context, _viewhandler);
if (_root is ViewGroup vg)
{
vg.AddView(_shellPageContainer);
}
_toolbarTracker = _shellContext.CreateTrackerForToolbar(_toolbar);
_toolbarTracker.SetToolbar(shellToolbar);
_toolbarTracker.Page = _page;
// this is probably not the most ideal way to do that
_toolbarTracker.CanNavigateBack = _shellContent == null;
_appearanceTracker = _shellContext.CreateToolbarAppearanceTracker();
((IShellController)_shellContext.Shell).AddAppearanceObserver(this, _page);
if (_shellPageContainer.LayoutParameters is CoordinatorLayout.LayoutParams layoutParams)
{
layoutParams.Behavior = new AppBarLayout.ScrollingViewBehavior();
}
return(_root);
}
