DelegateRegistry class

Typed map of component contracts to the theme's implementations.

Keys are contract types (ButtonDelegate), never implementation types.

Annotations

• @immutable

Constructors

DelegateRegistry([Map<Type, ComponentDelegate> delegates = const {}])

Creates a registry from delegates, keyed by contract type.

const

DelegateRegistry.empty()

An empty registry.

const

Properties

hashCode → int

The hash code for this object.

no setter, override

isEmpty → bool

Whether no delegates are registered.

no setter

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

maybeGet<D extends ComponentDelegate>() → D?

Returns the delegate registered for D, or null if none is present.

mergeWith(DelegateRegistry other) → DelegateRegistry

Returns a registry where this instance overwrites other on key overlap.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

override