immich/mobile/lib/utils/draggable_scroll_controller.dart

import 'package:flutter/material.dart';
import 'package:flutter_hooks/flutter_hooks.dart';

/// Creates a [DraggableScrollableController] that will be disposed automatically.
///
/// See also:
/// - [DraggableScrollableController]
DraggableScrollableController useDraggableScrollController({List<Object?>? keys}) {
  return use(_DraggableScrollControllerHook(keys: keys));
}

class _DraggableScrollControllerHook extends Hook<DraggableScrollableController> {
  const _DraggableScrollControllerHook({super.keys});

  @override
  HookState<DraggableScrollableController, Hook<DraggableScrollableController>> createState() =>
      _DraggableScrollControllerHookState();
}

class _DraggableScrollControllerHookState
    extends HookState<DraggableScrollableController, _DraggableScrollControllerHook> {
  late final controller = DraggableScrollableController();

  @override
  DraggableScrollableController build(BuildContext context) => controller;

  @override
  void dispose() => controller.dispose();

  @override
  String get debugLabel => 'useDraggableScrollController';
}