Unity Standalone File Browser，Unity打开文件选择器

下载地址：GitHub链接：

https://github.com/gkngkc/UnityStandaloneFileBrowser

简单的示例代码

using SFB;
using System;
using System.IO;
using UnityEngine;
using UnityEngine.UI;public class NewBehaviourScript : MonoBehaviour
{/// <summary>/// 用于显示图片的image/// </summary>public Image myimage;/// <summary>/// 图片选择按钮/// </summary>public Button btnSelect;/// <summary>/// 图片读取按钮/// </summary>public Button btnRead;private void Start(){btnSelect.onClick.AddListener(OnSelectImageButtonClicked);btnRead.onClick.AddListener(LoadAndDisplayBase64Image);}public void OnSelectImageButtonClicked(){//        // Open file with filter//        var extensions = new[] {//    new ExtensionFilter("Image Files", "png", "jpg", "jpeg" ),//    new ExtensionFilter("Sound Files", "mp3", "wav" ),//    new ExtensionFilter("All Files", "*" ),//};// Open file with filtervar extensions = new[] {new ExtensionFilter("Image Files", "png", "jpg", "jpeg" )};string[] paths = StandaloneFileBrowser.OpenFilePanel("Select Image", "", extensions, false);if (paths.Length > 0){string imagePath = paths[0];byte[] imageData = File.ReadAllBytes(imagePath);// 将图像数据转换为Base64字符串string base64ImageString = Convert.ToBase64String(imageData);// 将Base64字符串写入文本文件File.WriteAllText(Application.streamingAssetsPath + "/image_data.txt", base64ImageString);}}public void LoadAndDisplayBase64Image(){if (File.Exists(Application.streamingAssetsPath + "/image_data.txt")){// 从文件读取Base64字符串string base64ImageString = File.ReadAllText(Application.streamingAssetsPath + "/image_data.txt");// 将Base64字符串解码回字节数组byte[] imageData = Convert.FromBase64String(base64ImageString);// 创建Texture2D并加载图像数据Texture2D texture = new Texture2D(100, 100);texture.LoadImage(imageData);// 将Texture2D转换为Sprite并设置到Image组件上myimage.sprite = CreateSpriteFromTexture(texture);}}private Sprite CreateSpriteFromTexture(Texture2D texture){Rect rect = new Rect(0, 0, texture.width, texture.height);Vector2 pivot = new Vector2(0.5f, 0.5f);return Sprite.Create(texture, rect, pivot);}
}

场景布局
在这里插入图片描述

代码解析：
引用命名空间： using SFB;
两个按钮实现功能，一个image用于显示图片

        // Open file with filtervar extensions = new[] {new ExtensionFilter("Image Files", "png", "jpg", "jpeg" )};

添加过滤条件，效果如下图，在右下角
在这里插入图片描述

多条件过滤，

        // Open file with filtervar extensions = new[] {new ExtensionFilter("Image Files", "png", "jpg", "jpeg" ),new ExtensionFilter("Sound Files", "mp3", "wav" ),new ExtensionFilter("All Files", "*" ),};