Ensure image loaded via http connection

Question

hi all
I have a midlet that will load various images and displaying them on a canvas, upon request from the sever via HTTP connection.
And since the operation are being performed via the commands, the http connection code had been placed in another thread.
My question is, how can I ensure that all the necessary images are being loaded before moving on to execute the next code segment in my midlet?

Answer 1

When i try to send the server its unable to recieve image data . it was able to recieve request data.
As we use the same procedure to send data(irrespective of form as i m sending bytes)
Here is the code snippet
private boolean OpenHTTPConnection(String xmlData, String strUrl, String strRequestType) {
        System.out.println("UUURRRRLLL ->" + strUrl);
        System.out.println("XML Data---> ->" + xmlData + "'''''''" + bHTTPStatus);
        int rc, height, width;
        byte[] data;
        byte[] imageData = null;
        InputStream iStrm = null;
        try {
            if (xmlData != null) {
                con = (HttpConnection) Connector.open(strUrl, Connector.READ_WRITE, false);
                con.setRequestMethod(HttpConnection.POST);
                data = xmlData.getBytes();
                System.out.println("1->" + data);
                OutputStream ops = con.openOutputStream();
                System.out.println("----data length---" + data.length);
              ops.write(data);
   if (Snapper.isUpload == true) {
ops.write(Snapper.raw,0,Snapper.raw.length);
                rc = con.getResponseCode();
                if (rc != HttpConnection.HTTP_OK) {
                    result.setText("Server is not ready...");
                if (ops != null) {
                    ops.close();
                xmlData = null;
                imageData = null;
                Snapper.isUpload = false;
            }// end of null check
            else {
                System.out.println("Open the Con using this URL--->" + strUrl);
                // open the specific photo for View module
                con = (HttpConnection) Connector.open(strUrl);
                con.setRequestMethod(HttpConnection.GET);
            strParameters = null;
        } catch (Exception e) {
            System.out.println("Exception------->" + e);
            e.printStackTrace();
            midlet.uiManeger.SetLastErrorCode(Parser.NO_NETWORK);
        return true;
    }