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WebRequest加载streamingAssetsPath文件夹中的图片来动态修改Image的Sprite

程序员文章站 2022-04-03 22:21:17
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using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Networking;
using UnityEngine.UI;

public class WebRequest加载图片 : MonoBehaviour
{
    public Image image;
    public Sprite sprite;
    private string path;
    void Start()
    {
        
        
    }

    IEnumerator GetText(int index)
    {
        switch (index)
        {
            case 0:
                path = "file://" + Application.streamingAssetsPath + "/1.jpg";
                break;
            case 1:
                path = "file://" + Application.streamingAssetsPath + "/2.jpg";
                break;
        }
        //path = "file://" + Application.streamingAssetsPath + "/1.jpg";
        using (UnityWebRequest uwr = UnityWebRequestTexture.GetTexture(path))
        {
            yield return uwr.SendWebRequest();

            if (uwr.isNetworkError || uwr.isHttpError)
            {
                Debug.Log(uwr.error);
            }
            else
            {
                // Get downloaded asset bundle
                var texture = DownloadHandlerTexture.GetContent(uwr);
                sprite = Sprite.Create(texture, new Rect(0, 0, texture.width, texture.height), new Vector2(0.5f, 0.5f));
                image.sprite = sprite;
            }
        }
    }

    public void Button0()
    {
        StartCoroutine(GetText(0));
    }

    public void Button1()
    {
        StartCoroutine(GetText(1));
    }
相关标签: unity