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  1. #1
    becool007 is offline Member
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    Oct 2009
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    Default Doing a background job and not stall whole applet

    Ive been developing a 3D game. So far I was able to
    - Download cache to clients computer
    - Use the cache
    Now. I have two engines, one for the main processing and the other for the graphics. For the gfx engine to work it needs the main engine to finish what its doing or specifically whatever it has started. So in case 3, which is the third case during startup is that it downloads a GIANT 100mb cache file. During this download the Applet seems to freeze. Thats the problem. The code for my downloader is as so (Please do not copy, make your own):

    Java Code:
      public SaveFile(String url, File file) {
            try {
    	URL vs_site = new URL(url);
            FileOutputStream out = null;
            InputStream in = null;
            try {           
                byte buf[] = new byte[4 * 1024]; // 4kb buffer
                int read = -1;
                in = vs_site.openStream();
                out = new FileOutputStream(file);
                while((read = != -1) {
                 out.write(buf, 0, read);
                } finally {
                    if (in != null) in.close();
                    if (out!= null) out.close();
            } catch (IOException ioe) {
                System.err.println("Error Saving " + ioe);
    So like i said durng step 3, it calls this procedure but the URL links to a 100MB file. And during the download the applet shows white. And as i also said the reason behind this is that the second this procedure starts the program has to complete it before the graphics engine gets a go.


  2. #2
    Fubarable's Avatar
    Fubarable is offline Moderator
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    Jun 2008
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  3. #3
    becool007 is offline Member
    Join Date
    Oct 2009
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    ... What ? Splash screen has nothing to do with this. I have a loading screen. Which saves a file and when ur saving it the problem is that it holds the application. About the background thread. Care to elaborate lol. How would i do this ???

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