MemorySource class final

A DataSource backed by an in-memory byte buffer.

The simplest source — wrap a Uint8List you already hold (a download, an asset, a clipboard paste) and read from it. Random access is a plain sublist view, so reads are zero-copy and O(1).

final doc = await pdf.open(MemorySource(pdfBytes));

For data that doesn't fit in memory, back the source with a file or an HTTP range reader instead so the input streams in chunks rather than sitting fully in RAM.

Implemented types

• DataSource

Constructors

MemorySource(Uint8List _bytes)

Wraps bytes without copying. The buffer must not be mutated for the lifetime of any operation reading from this source.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

length → int

Total size in bytes.

no setter, override

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

readAt(int offset, int count) → Uint8List

Read count bytes starting at offset.

override

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited