AsyncImageInput class abstract

{@macro image_size_getter.image_input}

Unlike ImageInput, the methods of this class are asynchronous.

Constructors

AsyncImageInput()

Provide a data source for ImageSizeGetter to get image size.

const

AsyncImageInput.input(ImageInput input)

Provide a data source for ImageSizeGetter to get image size.

factory

Properties

hashCode → int

The hash code for this object.

read-only, inherited

length → Future<int>

Get a range of bytes from the input data.

read-only

runtimeType → Type

A representation of the runtime type of the object.

read-only, inherited

Methods

delegateInput() → Future<HaveResourceImageInput>

When asynchronous reading is not supported, an input for real reading will be cached in memory(web) or file(dart.io).

exists() → Future<bool>

Check if the input data exists.

getRange(int start, int end) → Future<List<int>>

Get a range of bytes from the input data.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

supportRangeLoad() → Future<bool>

Whether partial loading is supported.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited