public static async ETTask <Sprite> HttpGetImage(this ImageOnlineComponent self, string url, Dictionary <string, string> headers = null, Dictionary <string, string> extparams = null, bool islocal = false)
{
if (headers == null)
{
headers = new Dictionary <string, string>();
}
var asyncOp = HttpManager.Instance.HttpGetImageOnline(url, islocal, headers);
while (!asyncOp.isDone)
{
await TimerComponent.Instance.WaitAsync(1);
}
Sprite res = null;
if (asyncOp.result == UnityWebRequest.Result.Success)
{
var texture = DownloadHandlerTexture.GetContent(asyncOp);
res = Sprite.Create(texture, new Rect(0, 0, texture.width, texture.height), new Vector2(0.5f, 0.5f));
if (!islocal)
{
self.SaveImageToLocal(url, texture);
}
if (texture != null)
{
GameObject.Destroy(texture);
}
}
asyncOp.Dispose();
return(res);
}
static void CallBackAll(this ImageOnlineComponent self, string image_path, Sprite res)
{
if (self.callback_queue.TryGetValue(image_path, out var queue))
{
while (queue.Count > 0)
{
queue.Dequeue()?.Invoke(res);
}
self.callback_queue.Remove(image_path);
}
}
//释放
public static void ReleaseOnlineSprite(this ImageOnlineComponent self, string image_path)
{
if (string.IsNullOrEmpty(image_path))
{
return;
}
if (self.m_cacheOnlineSprite.TryGetValue(image_path, out var value))
{
value.ref_count--;
if (value.ref_count <= 0)
{
self.m_cacheOnlineSprite.Remove(image_path);
}
}
}
/// <summary>
/// 加载图片失败递归重试
/// </summary>
/// <param name="image_path"></param>
/// <param name="retryCount"></param>
/// <param name="islocal"></param>
/// <returns></returns>
static async ETTask <Sprite> LoadImageOnline(this ImageOnlineComponent self, string image_path, int retryCount = 3, bool islocal = true)
{
if (retryCount <= 0)
{
return(null);
}
retryCount--;
Sprite res;
if (islocal)//先从本地取
{
res = await self.HttpGetImage(image_path, null, null, true);
if (res != null)
{
self.m_cacheOnlineSprite[image_path] = new ImageOnlineInfo
{
sprite = res,
ref_count = 1
};
self.CallBackAll(image_path, res);
return(res);
}
Log.Debug("online_image_info path: " + image_path + " || msg:get img from local fail ");
}
// 从网上取
res = await self.HttpGetImage(image_path);
if (res != null)
{
self.m_cacheOnlineSprite[image_path] = new ImageOnlineInfo
{
sprite = res,
ref_count = 1
};
self.CallBackAll(image_path, res);
return(res);
}
else
{
return(await self.LoadImageOnline(image_path, retryCount, false));// 失败重试
}
}
/// <summary>
/// 获取线上图片精灵
/// </summary>
/// <param name="image_path">图片地址</param>
/// <param name="callback">完成回调</param>
/// <param name="reload">是否重新下载</param>
public static async ETTask <Sprite> GetOnlineImageSprite(this ImageOnlineComponent self, string image_path, bool reload = false, Action <Sprite> callback = null)
{
if (!reload && self.m_cacheOnlineSprite.TryGetValue(image_path, out var value))
{
value.ref_count++;
callback?.Invoke(value.sprite);
}
else if (self.callback_queue.TryGetValue(image_path, out var queue) && queue != null)
{
queue.Enqueue(callback);
}
else
{
self.callback_queue[image_path] = new Queue <Action <Sprite> >();
self.callback_queue[image_path].Enqueue(callback);
return(await self.LoadImageOnline(image_path, 3, !reload));//没有找到就去下载
}
return(null);
}
public static void SaveImageToLocal(this ImageOnlineComponent self, string url, Texture2D texture)
{
GameUtility.SafeWriteAllBytes(HttpManager.Instance.LocalImage(url), texture.EncodeToPNG());
}
