100 lines
2.3 KiB
C#
100 lines
2.3 KiB
C#
using System;
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using System.Collections;
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using UnityEngine;
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using UnityEngine.AddressableAssets;
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using UnityEngine.ResourceManagement.AsyncOperations;
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using UnityEngine.UI;
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public class DownAddress : MonoBehaviour
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{
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public string preloadLabel = "XJMH";
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public Image image;
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public void Awake()
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{
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image = GetComponent<Image>();
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}
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public void XZ()
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{
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StartCoroutine(StartDownload());
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}
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IEnumerator StartDownload()
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{
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// 1. 获取大小
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long size = 0;
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yield return DownloadManager.Instance.GetSize(preloadLabel, s => size = s);
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if (size <= 0)
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{
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Debug.Log("无需下载");
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yield break;
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}
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Debug.Log($"需要下载 {size / 1024f / 1024f:F2} MB");
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// 2. 下载
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yield return DownloadManager.Instance.DownloadLabel(
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preloadLabel,
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progress =>
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{
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image.fillAmount = progress;
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},
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success =>
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{
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Debug.Log(success ? "下载完成" : "下载失败");
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}
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);
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}
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}
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public class DownloadManager : Singleton<DownloadManager>
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{
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/// <summary>
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/// 获取某个 Label 的下载大小（字节）
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/// </summary>
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public IEnumerator GetSize(string label, Action<long> callback)
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{
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var handle = Addressables.GetDownloadSizeAsync(label);
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yield return handle;
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long size = 0;
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if (handle.Status == AsyncOperationStatus.Succeeded)
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size = handle.Result;
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else
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Debug.LogError($"GetSize 失败：{label}");
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callback?.Invoke(size);
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Addressables.Release(handle);
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}
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/// <summary>
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/// 下载某个 Label 的所有资源
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/// </summary>
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public IEnumerator DownloadLabel(string label, Action<float> onProgress, Action<bool> onFinished)
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{
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// 不要自动释放
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var handle = Addressables.DownloadDependenciesAsync(label, false);
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while (!handle.IsDone)
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{
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onProgress?.Invoke(handle.PercentComplete);
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yield return null;
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}
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bool success = handle.Status == AsyncOperationStatus.Succeeded;
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if (!success)
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Debug.LogError($"下载失败：{label}");
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onFinished?.Invoke(success);
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Addressables.Release(handle);
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}
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}
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