Struct AnyView 

pub struct AnyView { /* private fields */ }

A dynamically-typed view handle that can be downcast to a specific Entity<V>.

This is the type-erased counterpart to [ViewElement]: it holds an entity plus a function pointer to its render, and is itself a View, so embedding it as an element goes through the same [ViewElement] machinery as any other view.

Implementations

impl AnyView

pub fn cached(self, style: StyleRefinement) -> ViewElement<AnyView>

Embed this view as a cached [ViewElement] laid out at style.

The rendered subtree is recycled from the previous frame unless Context::notify was called on the backing entity since it was rendered (or Window::refresh is called, which ignores caching).

pub fn downgrade(&self) -> AnyWeakView

Convert this to a weak handle.

pub fn downcast<T: 'static>(self) -> Result<Entity<T>, Self>

Convert this to a Entity of a specific type. If this handle does not contain a view of the specified type, returns itself in an Err variant.

pub fn entity_type(&self) -> TypeId

Gets the TypeId of the underlying view.

pub fn entity_id(&self) -> EntityId

The EntityId of this view.

Trait Implementations

impl Clone for AnyView

fn clone(&self) -> AnyView

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for AnyView

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for AnyView

impl<V: Render> From<Entity<V>> for AnyView

fn from(value: Entity<V>) -> Self

Converts to this type from the input type.

impl IntoElement for AnyView

type Element = ViewElement<AnyView>

The specific type of element into which the implementing type is converted. Useful for converting other types into elements automatically, like Strings

fn into_element(self) -> Self::Element

Convert self into a type that implements Element.

fn into_any_element(self) -> AnyElement

Convert self into a dynamically-typed AnyElement.

impl PartialEq for AnyView

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl View for AnyView

AnyView is the type-erased View: its render is a function pointer rather than a concrete type, but it participates in the reactive graph exactly like any other view via [ViewElement].

fn entity_id(&self) -> Option<EntityId>

This view’s identity, if it has one. A view typically holds the backing entity as a field and returns its EntityId here.

fn render(self, window: &mut Window, cx: &mut App) -> impl IntoElement

Render this view into an element tree, consuming self.