ItemBuilder<T> class

A delegate that builds items on demand using a builder function.

Allows lazy generation of items, useful for large or infinite lists.

Example:

ItemBuilder<int>(
  itemCount: 100,
  itemBuilder: (index) => index * 2,
)

Inheritance

• Object
• ItemChildDelegate<T>
• ItemBuilder

Constructors

ItemBuilder({int? itemCount, required T? itemBuilder(int index)})

Creates an ItemBuilder.

const

Properties

hashCode → int

The hash code for this object.

no setter, inherited

itemBuilder → T? Function(int index)

Builder function that returns an item for the given index.

final

itemCount → int?

The total number of items, or null if infinite.

final

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

operator [](int index) → T?

Retrieves the item at the specified index.

override