【Unity】Native File Pickerを使用してローカルから選択したファイルを読み込む

using System.IO;
using UnityEngine;
using UnityEngine.UI;

public class Test : MonoBehaviour
{
    public RawImage image = default;

    void Update()
    {
        if (Input.GetMouseButtonDown(0))
        {
            if (NativeFilePicker.IsFilePickerBusy())
                return;

#if UNITY_IOS
	    string[] fileTypes = new string[] { "public.image" };
#else
            string[] fileTypes = new string[] { "image/*" };
#endif
            NativeFilePicker.PickFile((path) =>
            {
                if (path == null)
                    return;

                DisplayImage(path);
            }, fileTypes);
        }
    }

    private void DisplayImage(string path)
    {
        var rawImage = ReadFile(path);
        var texture = BytesToTexture2D(rawImage);
        SetTexture(texture);
    }

    private void SetTexture(Texture texture)
    {
        if(image.texture != null)
        {
            Destroy(image.texture);
        }

        image.texture = texture;
    }

    private byte[] ReadFile(string path)
    {
        var rawData = File.ReadAllBytes(path);
        return rawData;
    }

    private Texture2D BytesToTexture2D(byte[] bytes)
    {
        Texture2D texture = new Texture2D(0, 0);
        texture.LoadImage(bytes);
        return texture;
    }
}