SortableData<T> class

Immutable data wrapper for sortable items in drag-and-drop operations.

SortableData wraps the actual data being sorted and provides identity for drag-and-drop operations. Each sortable item must have associated data that uniquely identifies it within the sorting context.

The class is immutable and uses reference equality for comparison, ensuring that each sortable item maintains its identity throughout drag operations. This is crucial for proper drop validation and handling.

Type parameter T represents the type of data being sorted, which can be any type including primitive types, custom objects, or complex data structures.

Example:

// Simple string data
SortableData<String>('item_1')

// Complex object data
SortableData<TodoItem>(TodoItem(id: 1, title: 'Task 1'))

// Map data
SortableData<Map<String, dynamic>>({'id': 1, 'name': 'Item'})

Implementers

• TabPaneData

Annotations

• @immutable

Constructors

SortableData(T data)

Creates a SortableData wrapper for the given data.

const

Properties

data → T

The actual data being wrapped for sorting operations.

final

hashCode → int

The hash code for this object.

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

toString() → String

A string representation of this object.

override

Operators

operator ==(Object other) → bool

The equality operator.

override