OpacityProvider class abstract

Interface for a component that can be affected by opacity effects. Value of opacity must be in the range of 0-1 (both inclusive).

It is allowed for implementers of this interface to use an integer for internal representation. In such cases, opacity get/set are expected to perform necessary conversions from integer to double and vice versa. As a side effect of this, setting the opacity to some x value would not necessarily produce the same x when reading it back.

See HasPaint for an example implementation.

Implementers

• HasPaint

Constructors

OpacityProvider()

Properties

hashCode → int

The hash code for this object.

no setter, inherited

opacity ↔ double

getter/setter pair

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

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.

inherited