Java Development

[krishna85]

I want to display the mp3 files stored in the SDCard in a listview in blackberry....how to do that.?

[simon_hain]

read in the filenames
http://www.blackberry.com/developers/docs/7.1.0api/javax/microedition/io/file/FileConnection.html#li...
covert in to a vector or similar and display it in a listfield.

[krishna85]

i have written a code to display all the files and folders in the SDCard in a list view ... but i dont know  how to filter only .mp3 files and show it in listview pls help ...

the code goes here

public Listscreen()
        {
        super(MainScreen.VERTICAL_SCROLL|MainScreen.VERTICAL_SCROLLBAR);
            try{
            
            FileConnection fc = (FileConnection)Connector.open("file:///SDCard");
            Enumeration file =fc.list();
            
            while(file.hasMoreElements())
            {
                filevector.addElement(file.nextElement().toString());
                
            }
            Dialog.alert(""+filevector.size());
            }catch(Exception e)
            {
                
            }
            mylist = new ListField();
            mylist.setCallback(this);
            mylist.setSize(filevector.size());
            add(mylist);
            
        }

[peter_strange]

Code in here might help you:

http://supportforums.blackberry.com/t5/Java-Development/Create-a-file-selection-popup-screen/ta-p/44...

[simon_hain]

don't use I/O like fileconnection on the event thread.
see
http://supportforums.blackberry.com/t5/Java-Development/What-is-the-Event-Thread/ta-p/446865

use a separate thread instead.

instead of adding all elements you can check the element for ending with "mp3", for example

[krishna85 · Accepted solution]

thanx for all ur help.. actually i got the answer by changing Enumeration file =fc.list(); to Enumeration file =fc.list("*.amr", false);