Struct BackdropKey 

pub struct BackdropKey(/* private fields */);

A key that identifies a group of backdrop filters that share one backdrop.

Every BackdropFilterLayer with the same key blurs the scene once, as of the first of them, which is what Flutter’s BackdropGroup trades for the cost of one filter pass.

Implementations

impl BackdropKey

pub fn new() -> BackdropKey

Create a new BackdropKey.

pub fn id(self) -> u64

dart:ui’s backdropId for SceneBuilder::push_backdrop_filter.

Trait Implementations

impl Clone for BackdropKey

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for BackdropKey

impl Debug for BackdropKey

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

Formats the value using the given formatter.

impl Eq for BackdropKey

impl Hash for BackdropKey

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for BackdropKey

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for BackdropKey