Using TextSnapshot class on a loaded SWF on an iPad

Question

Hello, I am creating an iPad app. I am loading SWF files using a Loader object, then placing them in a movieclip and setting a SWFLoaders source property to this clip. Before I add the clip to the SWFLoader control I am using the TextSnapshot class on it, to retrieve an array with the getTextRunInfo method.
All this works fine when I test it on my desktop machine. However, on the iPad it causes the app to crash when a control using this clip is added to the stage. Can you still use TextSnapshot with an iPad, is there a workaround for this? Thanks for your help.

Answer 1

We are a university. most of our books are SWF files. We have been using iPad/FlexBuilder 4.5 to successfully view the contents of these books.
All navigation (i.e gotoandstop(page), etc work fine. Gestures for pageforward/pageback, zoom, pan work fine also.
Not sure I understand your comment.
However, there IS a specific problem with text snapshot. Below is a short code piece used to highlight text on a page.
If you remove the failing line everything works fine.
If you "debug" the iPad device everything works fine when you execute the code on the iPad
if you create a release build, when the application starts and the "findtext" line is executed the "app" freezes. No error message. The try/catch does not seem to catch any error.
This is something we really need for our app. If this is a bug how should we report it.
Thanks for your help.
  public function highlightText(txt:String):void {
   var start_pos:int = 0;
   try {
    if (txt == null || txt.length == 0) { return; }
    infoMessage("highlightText: " + txt);
    allText = _libMC.textSnapshot;      
    allTexts.push(allText);  // no reason for this but must do to make work 
    start_pos = allText.findText(start_pos, txt, false);     <<<<<< Failing line ====================================
    infoMessage("start_pos: " + start_pos);
   catch (err:Error) {
    infoMessage("error: " + err.message);   
   finally {
    infoMessage("finally");