/// <summary>
/// 安卓解包过程
/// </summary>
private IEnumerator StartAndroidUnPack(AssetBundleDownloadTaskModel taskModel, Action onComplete)
{
string resDicUrl = ABDataConfig.AppAssetBundleDirName; //安卓包资源路径
string targetDicUrl = ABDataConfig.localABFullName; //目标路径
string[] copyFile = new string[]
{
ABDataConfig.localCacheFileName,
ABDataConfig.localDepFileName,
};
//先拷贝cache.txt 与dep.file文件
taskModel.taskMessage = "解压配置文件";
yield return(CopyAssetBundle(resDicUrl, targetDicUrl, copyFile));
//解析dep文件 得到所有的ab 名字
var abNames = AssetBundleDepFileManager.ResolveDepFile(targetDicUrl + copyFile[1]);
//添加mainfest文件
int count = abNames.Count;
for (int i = 0; i < count; ++i)
{
abNames.Add(abNames[i] + ABDataConfig.assetBundleManifestFilePostfixName);
}
//在拷贝所有ab文件
taskModel.taskMessage = "解压ab文件";
yield return(CopyAssetBundle(resDicUrl, targetDicUrl, abNames));
DebugManager.Log("解包完成！");
taskModel.taskMessage = "解包完成";
yield return(0);
onComplete();
}
/// <summary>
/// 解包过程 参数1：任务model 参数2：回调
/// </summary>
private void StartUnPack(AssetBundleDownloadTaskModel taskModel, Action onComplete)
{
taskModel.taskMessage = "检查安装包资源";
var localAbFullName = ABDataConfig.localABFullName;
if (!Directory.Exists(localAbFullName))
{
taskModel.taskMessage = "开始解包";
Directory.CreateDirectory(localAbFullName);
DebugManager.Log(localAbFullName + "文件夹不存在，自动创建！开始解包！");
if (Application.platform == RuntimePlatform.Android)
{
//安卓环境下必须用www访问StreamingAssets文件夹下的文件
StartCoroutine(StartAndroidUnPack(taskModel, onComplete));
}
else
{
Util.CopyDirectoryToOtherDir(ABDataConfig.AppAssetBundleDirName, localAbFullName);
DebugManager.Log("解包完成！");
taskModel.taskMessage = "解包完成";
onComplete();
}
}
else
{
DebugManager.Log(localAbFullName + "文件夹存在！不需要解包！");
onComplete();
}
}
/// <summary>
/// 启动任务下载器
/// </summary>
private void StarDownloadTaskManage(AssetBundleDownloadTaskModel task)
{
if (task == null || downloadTaskMangageState || task.downloadNOModels == null)
{
return;
}
if (task.downloadNOModels.Count == 0)
{
task.taskState = TaskState.TaskOk;
task.taskMessage = "下载完成";
downloadSuccessTasks.Add(task);
return;
}
try
{
task.taskState = TaskState.Tasking;//任务开启中
task.taskMessage = "开始下载资源";
StartCoroutine(DownloadTaskMangage(task));
}
catch (Exception e)
{
task.taskMessage = "下载出错！";
DebugManager.LogError(task + "任务下载出错！" + e.Message);
downloadErrorTasks.Enqueue(task);
downloadTaskMangageState = false;//出错将下载状态设置为false
}
}
/// <summary>
/// 开始更新ab 返回ab任务model
/// </summary>
public AssetBundleDownloadTaskModel StarUpdateAssetBundle()
{
AssetBundleDownloadTaskModel taskModel = new AssetBundleDownloadTaskModel();
//检测是否是第一次安装apk，是就先解包
StartUnPack(taskModel, () =>
{
taskModel.taskMessage = "获取更新资源中";
//获取ab更新资源
AssetBundleCacheFileManager.Instance.GetUpdateDownLoadAssetBundles((waitDownloadAssetBundleList) =>
{
if (waitDownloadAssetBundleList != null)
{
taskModel.downloadNOModels = waitDownloadAssetBundleList;
}
taskModel.taskMessage = "需要更新资源数：" + taskModel.downloadNOModels.Count;
//将当前任务压入资源下载栈
downloadTasks.Enqueue(taskModel);
});
});
return(taskModel);
}
/// <summary>
/// 任务下载器
/// </summary>
private IEnumerator DownloadTaskMangage(AssetBundleDownloadTaskModel task)
{
downloadTaskMangageState = true;//状态位标志
string downLoadUrl = ABDataConfig.GetAssetBundleUrl + ABDataConfig.getAssetBundleApiName;
DebugManager.Log("任务开始下载：" + task.ToString());
AssetBundleDownloadModel tempABModel = null;//中间变量
#region 遍历未下载列表资源，开启下载
for (int i = 0; i < task.downloadNOModels.Count; ++i)
{
tempABModel = task.downloadNOModels[i];
DownloadModel downModel = new DownloadModel();
//下载资源文件
task.taskMessage = "下载资源" + tempABModel.assetBundleFileName;
downModel.postDatas = System.Text.Encoding.UTF8.GetBytes(tempABModel.assetBundleFileName);
yield return(DownloadABFile(downLoadUrl, downModel));
tempABModel.assetBundleData = downModel.resultDatas;
//下载资源mainfest文件
task.taskMessage = "下载资源" + tempABModel.assetBundleManifestFileName;
downModel.postDatas = System.Text.Encoding.UTF8.GetBytes(tempABModel.assetBundleManifestFileName);
yield return(DownloadABFile(downLoadUrl, downModel));
tempABModel.assetBundleManifestData = downModel.resultDatas;
if (tempABModel != null && tempABModel.assetBundleManifestData != null && tempABModel.assetBundleData != null)
{
DebugManager.Log("资源：" + tempABModel.assetBundleName + "下载成功！准备写入本地文件！");
//TODO 写入文件
bool result = FileManager.CreateFile(ABDataConfig.localABFullName + tempABModel.assetBundleFileName, tempABModel.assetBundleData);
if (result)
{
result = FileManager.CreateFile(ABDataConfig.localABFullName + tempABModel.assetBundleManifestFileName, tempABModel.assetBundleManifestData);
}
if (result)
{
task.downloadOKModels.Add(tempABModel);//添加到成功队列中
}
else
{
DebugManager.Log("资源：" + tempABModel.assetBundleName + "下载成功，写入文件异常！");
task.downloadErrorModels.Add(tempABModel);//添加到失败队列中
}
}
else
{
DebugManager.Log("资源：" + tempABModel.assetBundleName + "下载异常！数据错误！");
task.downloadErrorModels.Add(tempABModel);//添加到失败队列中
}
task.downloadNOModels.RemoveAt(i--);//移出未下载队列
tempABModel = null;
}
#endregion
//判断任务是否成功或者失败
if (task.downloadErrorModels != null && task.downloadErrorModels.Count > 0)
{
DebugManager.LogWarning("任务：" + task.ToString() + "下载失败！");
task.taskState = TaskState.TaskError;
task.taskMessage = task.downloadErrorModels.Count + "个资源下载失败！重新下载！";
downloadErrorTasks.Enqueue(task);
}
else
{
DebugManager.LogWarning("任务：" + task.ToString() + "下载成功！");
task.taskState = TaskState.TaskOk;
task.taskMessage = "下载完成";
downloadSuccessTasks.Add(task);
}
//当前任务下载结束
downloadTaskMangageState = false;
}
