Question

I have run into a few problems when trying to get the camera to work accordingly… The camera Demo Works on the 8520 device (Has a memory Card) but does not work on the 9780 device (Has No Memory Card) the error given

ERROR Class java.lang.ArrayOutOfBoundsException :index 0>=0

My code Sample:

public class MyScreen extends MainScreen{

    Player _p;
    VideoControl _videoControl;
    FileConnection fileconn;
    String PATH;
    String GetfileName;
    LabelField GetPhotofileName = new LabelField("",LabelField.FOCUSABLE){
        protected boolean navigationClick(int status, int time){
            Dialog.alert("Clicked");
            return true;
        }
    };

    public static boolean SdcardAvailabulity() {
        String root = null;
        Enumeration e = FileSystemRegistry.listRoots();
        while (e.hasMoreElements()) {
            root = (String) e.nextElement();
            if( root.equalsIgnoreCase("sdcard/") ) {
            }else if( root.equalsIgnoreCase("store/") ) {
            }
        }

        class MySDListener implements FileSystemListener {
            public void rootChanged(int state, String rootName) {
                if( state == ROOT_ADDED ) {
                    if( rootName.equalsIgnoreCase("sdcard/") ) {
                    }
                } else if( state == ROOT_REMOVED ) {
                }
            }
        }

        return true;
    }

    protected boolean invokeAction(int action){
        boolean handled = super.invokeAction(action);
        if(SdcardAvailabulity()){
            PATH = System.getProperty("fileconn.dir.memorycard.photos")+"Image_"+System.currentTimeMillis()+".jpg";//here "str" having the current Date and Time;
        } else {
            // PATH = System.getProperty("file:///store/home/user/pictures/")+"Image_"+System.currentTimeMillis()+".jpg";
            PATH = System.getProperty("fileconn.dir.photos")+"Image_"+System.currentTimeMillis()+".jpg";
        }

        if(!handled){
            if(action == ACTION_INVOKE){
                try{
                    byte[] rawImage = _videoControl.getSnapshot(null);
                    System.out.println("----------1");
                    fileconn=(FileConnection)Connector.open(PATH);
                    System.out.println("----------2");
                    if(fileconn.exists()){
                        fileconn.delete();
                        System.out.println("----------3");
                    }
                    fileconn.create();
                    System.out.println("----------4");
                    OutputStream os=fileconn.openOutputStream();
                    System.out.println("----------5");
                    os.write(rawImage);
                    GetfileName =fileconn.getName();
                    System.out.println("----------6");
                    System.out.println("GetfileName----------"+GetfileName);
                    fileconn.close();
                    System.out.println("----------7");
                    os.close();
                    Status.show("Image is Captured",200);
                    GetPhotofileName.setText(GetfileName);
                    System.out.println("----------8");
                    if(_p!=null)
                        _p.close();
                    System.out.println("----------9");
                }catch(Exception e){
                    if(_p!=null){
                        _p.close();
                    }
                    if(fileconn!=null){
                        try{
                            fileconn.close();
                        }catch (IOException e1){
                            //if the action is other than click the trackwheel(means go to the menu options) then we do nothing;
                        }
                    }
                }
            }
        }
        return handled;
    }

    public MyScreen(){
        setTitle("Camera App");
        try{
            System.out.println("Debug------------10");
            _p = javax.microedition.media.Manager.createPlayer("capture://video?encoding=jpeg&width=1024&height=768");
            _p.realize();
            _videoControl = (VideoControl) _p.getControl("VideoControl");
            System.out.println("Debug------------11");
            if (_videoControl != null){
                Field videoField = (Field) _videoControl.initDisplayMode (VideoControl.USE_GUI_PRIMITIVE, "net.rim.device.api.ui.Field");
                _videoControl.setDisplayFullScreen(true);
                System.out.println("Debug------------12");
                _videoControl.setVisible(true);
                _p.start();
                System.out.println("Debug------------13");
                if(videoField != null){
                    add(videoField);
                    System.out.println("Debug------------14");
                }
            }
        }catch(Exception e){
            if(_p!=null) {
                _p.close();
            }
            Dialog.alert(e.toString());
        }
        add(GetPhotofileName);
    }
}  

on the 8520 (Has a Memory Card) the code works fine on the 9780 (Has no Memory Card) the the code stops at “System.out.println(“debug—1″)”, can anyone please tell me if you can see any problem with my code???

Answer 1

  public static boolean SdcardAvailabulity() {
     String root = null;
     Enumeration e = FileSystemRegistry.listRoots();
     while (e.hasMoreElements()) {
         root = (String) e.nextElement();
         if( root.equalsIgnoreCase("sdcard/") ) {
             return true;
         }else if( root.equalsIgnoreCase("store/") ) {
             return false;
         }
     }
     class MySDListener implements FileSystemListener {
         public void rootChanged(int state, String rootName) {
             if( state == ROOT_ADDED ) {
                 if( rootName.equalsIgnoreCase("sdcard/") ) {
                 }
             } else if( state == ROOT_REMOVED ) {
             }
         }
     }
     return true;
}

This is the sollution, My “SD card availability” code only returned true which caused the picture not to save when the blackberry had no memory card inserted. @ Eugen Martynov Please read through the code and you will see it is there 🙂