public PageContainer(Context context, IVisualElementRenderer child, bool inFragment = false) : base(context)
{
Id = Platform.GenerateViewId();
Child = child;
IsInFragment = inFragment;
AddView(child.View);
}
protected virtual void OnElementSet(Shell shell)
{
Profile.FrameBegin();
Profile.FramePartition("Flyout");
_flyoutRenderer = CreateShellFlyoutRenderer();
Profile.FramePartition("Frame");
_frameLayout = new CustomFrameLayout(AndroidContext)
{
LayoutParameters = new LP(LP.MatchParent, LP.MatchParent),
Id = Platform.GenerateViewId(),
};
Profile.FramePartition("SetFitsSystemWindows");
_frameLayout.SetFitsSystemWindows(true);
Profile.FramePartition("AttachFlyout");
_flyoutRenderer.AttachFlyout(this, _frameLayout);
Profile.FramePartition("AddAppearanceObserver");
((IShellController)shell).AddAppearanceObserver(this, shell);
// Previewer Hack
Profile.FramePartition("Previewer Hack");
if (AndroidContext.GetActivity() != null && shell.CurrentItem != null)
{
SwitchFragment(FragmentManager, _frameLayout, shell.CurrentItem, false);
}
Profile.FrameEnd();
}
protected override void OnElementChanged(ElementChangedEventArgs <Stepper> e)
{
base.OnElementChanged(e);
if (e.OldElement == null)
{
_downButton = new AButton(Context)
{
Text = "-", Gravity = GravityFlags.Center, Tag = this, Focusable = true
};
_downButton.SetHeight((int)Context.ToPixels(10.0));
_downButton.SetOnClickListener(StepperListener.Instance);
_upButton = new AButton(Context)
{
Text = "+", Tag = this, Focusable = true
};
_upButton.SetOnClickListener(StepperListener.Instance);
_upButton.SetHeight((int)Context.ToPixels(10.0));
_downButton.NextFocusForwardId = _upButton.Id = Platform.GenerateViewId();
var layout = CreateNativeControl();
layout.AddView(_downButton);
layout.AddView(_upButton);
SetNativeControl(layout);
}
UpdateButtonEnabled();
}
public static void CreateStepperButtons <TButton>(IStepperRenderer renderer, out TButton downButton, out TButton upButton)
where TButton : AButton
{
downButton = (TButton)renderer.CreateButton();
downButton.Id = Platform.GenerateViewId();
downButton.Focusable = true;
upButton = (TButton)renderer.CreateButton();
upButton.Id = Platform.GenerateViewId();
upButton.Focusable = true;
downButton.Gravity = GravityFlags.Center;
downButton.Tag = renderer as Java.Lang.Object;
downButton.SetOnClickListener(StepperListener.Instance);
upButton.Gravity = GravityFlags.Center;
upButton.Tag = renderer as Java.Lang.Object;
upButton.SetOnClickListener(StepperListener.Instance);
// IMPORTANT:
// Do not be decieved. These are NOT the same characters. Neither are a "minus" either.
// The Text is a visually pleasing "minus", and the description is the phonetically correct "minus".
// The little key on your keyboard is a dash/hyphen.
downButton.Text = "－";
downButton.ContentDescription = "−";
// IMPORTANT:
// Do not be decieved. These are NOT the same characters.
// The Text is a visually pleasing "plus", and the description is the phonetically correct "plus"
// (which, unlike the minus, IS found on your keyboard).
upButton.Text = "＋";
upButton.ContentDescription = "+";
downButton.NextFocusForwardId = upButton.Id;
}
public static void EnsureId(this AView view)
{
if (view.IsDisposed())
{
return;
}
if (view.Id == AView.NoId)
{
view.Id = Platform.GenerateViewId();
}
}
public override AView OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
var shellSection = ShellSection;
if (shellSection == null)
{
return(null);
}
var root = inflater.Inflate(Resource.Layout.RootLayout, null).JavaCast <CoordinatorLayout>();
_toolbar = root.FindViewById <Toolbar>(Resource.Id.main_toolbar);
var scrollview = root.FindViewById <NestedScrollView>(Resource.Id.main_scrollview);
_tablayout = root.FindViewById <TabLayout>(Resource.Id.main_tablayout);
_viewPager = new FormsViewPager(Context)
{
LayoutParameters = new LP(LP.MatchParent, LP.MatchParent),
};
_viewPager.AddOnPageChangeListener(this);
_viewPager.Id = Platform.GenerateViewId();
_viewPager.Adapter = new ShellFragmentPagerAdapter(shellSection, ChildFragmentManager);
_viewPager.OverScrollMode = OverScrollMode.Never;
_tablayout.SetupWithViewPager(_viewPager);
var currentPage = ((IShellContentController)shellSection.CurrentItem).GetOrCreateContent();
var currentIndex = ShellSection.Items.IndexOf(ShellSection.CurrentItem);
_toolbarTracker = _shellContext.CreateTrackerForToolbar(_toolbar);
_toolbarTracker.Page = currentPage;
_viewPager.CurrentItem = currentIndex;
scrollview.AddView(_viewPager);
if (shellSection.Items.Count == 1)
{
_tablayout.Visibility = ViewStates.Gone;
}
_tabLayoutAppearanceTracker = _shellContext.CreateTabLayoutAppearanceTracker(ShellSection);
_toolbarAppearanceTracker = _shellContext.CreateToolbarAppearanceTracker();
HookEvents();
scrollview.Dispose();
return(_rootView = root);
}
protected override void OnElementChanged(ElementChangedEventArgs <Page> e)
{
base.OnElementChanged(e);
if (Id == NoId)
{
Id = Platform.GenerateViewId();
}
UpdateBackground(false);
Clickable = true;
}
public override AView OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
var shellSection = ShellSection;
if (shellSection == null)
{
return(null);
}
if (shellSection.CurrentItem == null)
{
throw new InvalidOperationException($"Content not found for active {shellSection}. Title: {shellSection.Title}. Route: {shellSection.Route}.");
}
var root = inflater.Inflate(Resource.Layout.RootLayout, null).JavaCast <CoordinatorLayout>();
_toolbar = root.FindViewById <Toolbar>(Resource.Id.main_toolbar);
_viewPager = root.FindViewById <FormsViewPager>(Resource.Id.main_viewpager);
_tablayout = root.FindViewById <TabLayout>(Resource.Id.main_tablayout);
_viewPager.EnableGesture = false;
_viewPager.AddOnPageChangeListener(this);
_viewPager.Id = Platform.GenerateViewId();
_viewPager.Adapter = new ShellFragmentPagerAdapter(shellSection, ChildFragmentManager);
_viewPager.OverScrollMode = OverScrollMode.Never;
_tablayout.SetupWithViewPager(_viewPager);
var currentPage = ((IShellContentController)shellSection.CurrentItem).GetOrCreateContent();
var currentIndex = SectionController.GetItems().IndexOf(ShellSection.CurrentItem);
_toolbarTracker = _shellContext.CreateTrackerForToolbar(_toolbar);
_toolbarTracker.Page = currentPage;
_viewPager.CurrentItem = currentIndex;
if (SectionController.GetItems().Count == 1)
{
_tablayout.Visibility = ViewStates.Gone;
}
_tabLayoutAppearanceTracker = _shellContext.CreateTabLayoutAppearanceTracker(ShellSection);
_toolbarAppearanceTracker = _shellContext.CreateToolbarAppearanceTracker();
HookEvents();
return(_rootView = root);
}
protected override void OnElementChanged(ElementChangedEventArgs <Page> e)
{
Page view = e.NewElement;
base.OnElementChanged(e);
if (Id == NoId)
{
Id = Platform.GenerateViewId();
}
UpdateBackgroundColor(view);
UpdateBackgroundImage(view);
Clickable = true;
}
protected virtual void OnElementSet(Shell shell)
{
_flyoutRenderer = CreateShellFlyoutRenderer();
_frameLayout = new CustomFrameLayout(AndroidContext)
{
LayoutParameters = new LP(LP.MatchParent, LP.MatchParent),
Id = Platform.GenerateViewId(),
};
_frameLayout.SetFitsSystemWindows(true);
_flyoutRenderer.AttachFlyout(this, _frameLayout);
((IShellController)shell).AddAppearanceObserver(this, shell);
SwitchFragment(FragmentManager, _frameLayout, shell.CurrentItem, false);
}
public static void SetLabeledBy(this global::Android.Views.View Control, Element Element)
{
if (Element == null)
{
return;
}
var elemValue = (VisualElement)Element.GetValue(AutomationProperties.LabeledByProperty);
if (elemValue != null)
{
var id = Control.Id;
if (id == -1)
{
id = Control.Id = Platform.GenerateViewId();
}
var renderer = elemValue?.GetRenderer();
renderer?.SetLabelFor(id);
}
}
internal static void UpdateMenuItem(AToolbar toolbar,
ToolbarItem item,
int?menuItemIndex,
Context context,
Color?tintColor,
PropertyChangedEventHandler toolbarItemChanged,
List <IMenuItem> menuItemsCreated,
List <ToolbarItem> toolbarItemsCreated,
Action <Context, IMenuItem, ToolbarItem> updateMenuItemIcon = null)
{
IMenu menu = toolbar.Menu;
item.PropertyChanged -= toolbarItemChanged;
item.PropertyChanged += toolbarItemChanged;
IMenuItem menuitem;
Java.Lang.ICharSequence newTitle = null;
if (!String.IsNullOrWhiteSpace(item.Text))
{
if (item.Order != ToolbarItemOrder.Secondary && tintColor != null && tintColor != Color.Default)
{
var color = item.IsEnabled ? tintColor.Value.ToAndroid() : tintColor.Value.MultiplyAlpha(0.302).ToAndroid();
SpannableString titleTinted = new SpannableString(item.Text);
titleTinted.SetSpan(new ForegroundColorSpan(color), 0, titleTinted.Length(), 0);
newTitle = titleTinted;
}
else
{
newTitle = new Java.Lang.String(item.Text);
}
}
else
{
newTitle = new Java.Lang.String();
}
if (menuItemIndex == null)
{
menuitem = menu.Add(0, Platform.GenerateViewId(), 0, newTitle);
menuItemsCreated?.Add(menuitem);
toolbarItemsCreated?.Add(item);
}
else
{
if (menuItemsCreated == null || menuItemsCreated.Count < menuItemIndex.Value)
{
return;
}
menuitem = menuItemsCreated[menuItemIndex.Value];
if (!menuitem.IsAlive())
{
return;
}
menuitem.SetTitle(newTitle);
}
menuitem.SetEnabled(item.IsEnabled);
menuitem.SetTitleOrContentDescription(item);
if (updateMenuItemIcon != null)
{
updateMenuItemIcon(context, menuitem, item);
}
else
{
UpdateMenuItemIcon(context, menuitem, item, tintColor);
}
if (item.Order != ToolbarItemOrder.Secondary)
{
menuitem.SetShowAsAction(ShowAsAction.Always);
}
menuitem.SetOnMenuItemClickListener(new GenericMenuClickListener(((IMenuItemController)item).Activate));
if (item.Order != ToolbarItemOrder.Secondary && !Forms.IsOreoOrNewer && (tintColor != null && tintColor != Color.Default))
{
var view = toolbar.FindViewById(menuitem.ItemId);
if (view is ATextView textView)
{
if (item.IsEnabled)
{
textView.SetTextColor(tintColor.Value.ToAndroid());
}
else
{
textView.SetTextColor(tintColor.Value.MultiplyAlpha(0.302).ToAndroid());
}
}
}
}
public FlyoutPageContainer(FlyoutPage parent, bool isFlyout, Context context) : base(context)
{
Id = Platform.GenerateViewId();
_parent = parent;
_isFlyout = isFlyout;
}