61 lines
2.3 KiB
C#
61 lines
2.3 KiB
C#
using System;
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using System.Collections;
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using System.Collections.Generic;
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using TapTap.UI;
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using UnityEngine;
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using UnityEngine.Networking;
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namespace TapTap.Common.Runtime.Internal.Utils {
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public class TdsImage : MonoSingleton<TdsImage> {
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private static Dictionary<string, Texture2D> cacheDict = new Dictionary<string, Texture2D>();
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public void Load(string url, int maxLoadingTime, Action<Texture2D> callback) {
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if (cacheDict.TryGetValue(url, out var value)) {
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callback?.Invoke(value);
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}
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else {
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StartCoroutine(DownloadImage(url, maxLoadingTime, callback));
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}
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}
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private static IEnumerator DownloadImage(string url, float maxLoadingTime, Action<Texture2D> callback) {
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UnityWebRequest www = UnityWebRequestTexture.GetTexture(url);
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DateTime startTime = DateTime.Now;
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www.SendWebRequest();
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TapLogger.Debug($"开始下载图片! url: {url}");
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yield return new WaitForSeconds(maxLoadingTime / 1000.0f);
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if (www.isNetworkError || www.isHttpError) {
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callback?.Invoke(null); // 下载错误，返回空
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TapLogger.Warn($"下载图片的时候发生错误!: {www.error}");
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}
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else if (www.isDone) {
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OnDownloadSuccess(www, url, callback);
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TapLogger.Debug($"下载图片顺利完成! url: {url}");
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}
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else {
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TapLogger.Debug($"下载超时,直接返回空! url: {url}");
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callback?.Invoke(null); // 下载超时,直接返回空
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while (!www.isDone) {
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yield return null;
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}
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if (!www.isNetworkError && !www.isHttpError) {
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OnDownloadSuccess(www, url, null);
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TapLogger.Debug($"下载超时完成! url: {url}");
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}
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}
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}
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private static void OnDownloadSuccess(UnityWebRequest www, string url, Action<Texture2D> callback) {
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Texture2D texture = ((DownloadHandlerTexture)www.downloadHandler).texture;
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// 添加到缓存
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cacheDict.Add(url, texture);
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callback?.Invoke(texture); // 返回加载成功的图片
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}
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}
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} |