public static void loadFaceSyncxxx(string face, RequestPicEvent callBack)
{
bool isFaceExit = false;
foreach (var item in texturesList)
{
if (item == null)
{
Debug.Print("item为空");
callBack(null);
return;
}
if (face == null)
{
Debug.Print("face为空");
callBack(null);
return;
}
if (item.EndsWith(face))
{
isFaceExit = true;
break;
}
}
if (isFaceExit)
{
// Debug.Print("图片存在，无需下载" + face);
loadFaceFromLocal(face, callBack);
}
else
{
// Debug.Print("图片不存在，网络下载"+ face);
loadFaceFromNet(face, callBack);
}
}
static Image loadFaceFromLocalThread(string url, RequestPicEvent callBack)
{
FileStream fs = null;
try
{
fs = File.OpenRead(url);
int filelength = 0;
filelength = (int)fs.Length; //获得文件长度
Byte[] image = new Byte[filelength]; //建立一个字节数组
fs.Read(image, 0, filelength); //按字节流读取
Image result = Image.FromStream(fs);
fs.Close();
return(result);
}
catch (Exception err)
{
Debug.Print("loadFaceFromLocalThread下载图片失败,转为网络下载。" + url + err.ToString());
int count = url.LastIndexOf("/");
string face = url.Substring(count);
loadFaceFromNet(face, callBack);
return(null);
}
finally {
if (fs != null)
{
fs.Close();
}
}
}
static void loadFaceFromNet(string face, RequestPicEvent callBack)
{
Image tempImage;
Func <string, Image> reqPic = loadFaceFromNetThread;
IAsyncResult iar = reqPic.BeginInvoke(face, ar =>
{
tempImage = reqPic.EndInvoke(ar);
if (callBack != null)
{
callBack(tempImage);
}
}, reqPic);
}
static void loadFaceFromLocal(string face, RequestPicEvent callBack)
{
string url = AppConst.WinPicPath + face;
Image tempImage;
Func <string, RequestPicEvent, Image> reqPic = loadFaceFromLocalThread;
IAsyncResult iar = reqPic.BeginInvoke(url, callBack, ar =>
{
tempImage = reqPic.EndInvoke(ar);
if (callBack != null)
{
callBack(tempImage);
}
}, reqPic);
}
