Hi, thanks for your support at the first.
What file path did you load the image from? Is it from local or internet?
It downloads from internet and saves to local to make re-loading faster, so it won’t cache if loading a local image.
It is loading from the web. I’ve dug deeper and it appears to me that the filename that’s written to the cache is invalid as it’s adding double equals prior to the .jpg extension?
Here is the warning in the console (note: to protect sensitive client info I have modified the url to be invalid):
WwwLoader https://firebasestorage.googleapis.com/v0/b/dvr.appspot.com/o/wp_2.jpg?alt=media&token=e67baa3c-f3d8-489b-8692-0caa8a9680a5 failed to save cache.
System.IO.IOException: Win32 IO returned ERROR_INVALID_NAME. Path: E:\DVR\Temp\dvr\cache\4r4azGHr20hDAMcmDqyUKg==.jpg?alt=media&token=e67baa3c-f3d8-489b-8692-0caa8a9680a5
at System.IO.FileStream…ctor (System.String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, Boolean anonymous, FileOptions options) [0x00251] in /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.IO/FileStream.cs:320
Thanks for your support and deeper digging with the log message, are you a programmer?
The problem looks caused by the generated cache file name.
I designed it for a normal URL without params, e.g., the “alt=media&token=e67…” after the “…jpg?”.
And use the “.jpg?..” as the cache file’s extension name, that it causes the exception.
[EDIT] If you’re willing, you can make it up by steps below:
Open the script file “Assets/WanzyeeStudio/Scripts/Basic/Class/WwwLoader.cs”.
Go to the line 179 and insert if(-1 != _e.IndexOfAny(Path.GetInvalidFileNameChars())) _e = “”;
It should work now, but the cache file may have no extension name.
[EDIT] Or you could try to send the params, e.g., “alt” and “token”, with WWWForm.
Then I’ll consider how to handle the cache file extension name to update the package.
Now i wanted to ask you (since i am a neophyte in C# and Unity)… how can i make synchronous my requests in a WebGL project? Then initiate a request, and wait for the result before performing any other action.
public static void APIRequest2(string action, string user, string token){
var timeout = 5f;
var cache = TimeSpan.FromSeconds (1);
string url = "...";
WwwLoader.LoadText (
new WwwOption(url, null, timeout, cache), (loader, data) => {
//if (null != loader.error) {
HandleData(data);
//}
}
);
}
public static void HandleData(string data){
// ret now contains the contents of the rest service
string sStrings = "0.00";
XmlDocument xmlDoc = new XmlDocument ();
xmlDoc.LoadXml (data);
XmlNodeList itemList = xmlDoc.GetElementsByTagName ("item");
foreach (XmlNode itemInfo in itemList) {
XmlNodeList itemContent = itemInfo.ChildNodes;
foreach (XmlNode itemItens in itemContent) {
if (itemItens.Name == "result") {
sStrings = itemItens.InnerText;
}
}
}
updateGold(sStrings);
Debug.LogWarning ("BESettings::APIRequest2: " + sStrings);
}
Hi, @Collateral-Studios ,
Excuse me, I can’t properly understand your question… T-T
Q: “wait for the result before performing any other action.”
Your code looks fine, line9:“HandleData(data)” will be called after line6:“WwwLoader.LoadText” loaded.
Since you said “neophyte in C# and Unity”, my example code may be not clear enough.
I used C# anonymous method to make my example shorter…LOL
Thanks for the immediate answer.
But in my project, i have several scenes and i call the wwwloader from the awake event of the second scene to set a value from the start.
If use the WebClient, i have no kind of problem, evidently the Weblient blocks any process until the end of its execution. But it does not work on WebGL
public static void APIRequest(string action, string user, string token)
{
var SyncClient = new WebClient ();
try
{
// actually execute the GET request
var content = SyncClient.DownloadString ("...");
// ret now contains the contents of the rest service
string sStrings = "0.00";
XmlDocument xmlDoc = new XmlDocument ();
...
foreach (XmlNode itemInfo in itemList) {
...
sStrings = itemItens.InnerText;
...
}
tGold = double.Parse(sStrings) /100;
}
catch (WebException we)
{
// WebException.Status holds useful information
Console.WriteLine(we.Message + "\n" + we.Status.ToString());
}
catch (NotSupportedException ne)
{
// other errors
Console.WriteLine(ne.Message);
}
}
}
Hi, @Collateral-Studios ,
Did you mean what you want is: “Load 2nd scene > Invoke Awake() in the 2nd scene > Download settings > Set value > Run the 2nd scene” ?
So you want to block Unity main thread while loading?
Generally, we don’t want to block unity main thread, it causes the screen stuck.
So Unity makes WWW and Coroutine for doing other actions while downloading.
Here’s another code example in a format easier to read.
//Unity Coroutine, place in a MonoBehaviour
private IEnumerator Start(){
var content = "";
//start downloading and wait until finished with "yield return"
yield return WwwLoader.LoadText(
new WwwOption("...", null, 10f, TimeSpan.FromTicks(-1)),
(l, s) => content = s
);
//do whatever after downloaded
Debug.Log(content);
}
If you really need to “sync and block the main thread and stuck the screen”, please let me know, them I may need to update the scripts. LOL!
Thank aixiang.cheng for reporting an issue as the attachment snapshot.
That WwwLoader gets the AudioClip or MovieTexture of a WWW by reflection for compatibility from Unity 5 to 5.6, even 2017.2, but it’s broken after 2017.4, because Unity changed the API.
I’ll upload the fixed package asap.
If, and only if, you face the same issue and have to make it work right away, you could modify the code described below:
Find and open the file WwwLoader.cs.
Find _movieGetter = GetPatchGetter<MovieTexture>("movie", "GetMovieTexture"); and replace to _movieGetter = (www) => www.GetMovieTexture();
Find _audioGetter = GetPatchGetter<AudioClip>("audioClip", "GetAudioClip"); and replace to _audioGetter = (www) => www.GetAudioClip();
Save and close the file, these will make it work with the new API after 2017.4.
Coroutiner now supports both play and edit mode, WwwLoader also does.
Coroutiner changes to use singleton component to run for better performance.
Fix the methods to get the AudioClip and MovieTexture in different Unity versions.
Avoid potential freezing by disposing the WWW in another thread.
Thank aixiang.cheng again for reporting the disposing issue.
If you faced it before the update published, you can find the file WwwLoader.cs, and edit it as below:
Www Loader - Fire'n'Forget with global Coroutiner | Network | Unity Asset Store
