NativeListExample.cs

using UnityEngine;
using Unity.Collections;
using Unity.Jobs;

public class NativeListExample : MonoBehaviour
{
    JobHandle handle;
    NativeQueue<int> queue;
    NativeList<int> list;

    private void Awake()
    {
        queue = new NativeQueue<int>(Allocator.Persistent);
        list = new NativeList<int>(8, Allocator.Persistent);
    }

    private void OnDestroy()
    {
        handle.Complete();

        queue.Dispose();
        list.Dispose();
    }

    void Update()
    {
        handle.Complete();

        ResetCollections();

        handle = new AddJob { queue = queue, list = list }.Schedule();

        handle = new UpdateJob {
            array = list.AsDeferredJobArray()   // AsDeferredJobArrayでNativeArrayにする
        }.Schedule(list, 4, handle);            // 要素数の部分にはlistを登録

        handle = new ShowLogJob{ list = list }.Schedule(list, 1, handle);

        JobHandle.ScheduleBatchedJobs();
    }

    void ResetCollections()
    {
        // Listに登録する要素を追加
        queue.Enqueue(3); queue.Enqueue(2);
        queue.Enqueue(4); queue.Enqueue(5);

        // リストをクリア
        list.Clear();
    }


    struct AddJob : IJob
    {
        public NativeQueue<int> queue;
        public NativeList<int> list;

        public void Execute()
        {
            while (queue.TryDequeue(out int item))
            {
                if (item % 2 == 0) // 2で割り切れる要素だけ追加
                    list.Add(item);
            }
        }
    }

    struct UpdateJob : IJobParallelFor
    {
        public NativeArray<int> array;

        public void Execute(int index)
        {
            array[index] += 1;
        }
    }

    struct ShowLogJob : IJobParallelFor
    {
        [ReadOnly] public NativeList<int> list;

        public void Execute(int index)
        {
            Debug.Log(list[index]);
        }
    }
}