http data view connection

Hi I want to achieve paging as a concept in the bb device. I want that demand is expected to go to first on the server and the data will be displayed in the field from the list. but when the user comes to the last record in the listfield demand should still communicate with the server and put the following Recordset? I have no idea how to start thinking about this problem. I am able to communicate with the server and the data, but how do I optimize the paging like thing. also where can I keep the record during the second request goes to the server.

Hello

You can take a look here for the part of the UI to update. Everything else is almost exactly you even thing you've done.

http://supportforums.BlackBerry.com/T5/Java-development/manage-UI-interactions/Ta-p/502378

For the part of scrollbars, this might help you:

// Override of the default moveFocus from ListField
protected int moveFocus(int amount, int status, int time) {
    int result = super.moveFocus(amount, status, time);
    super.focusChangeNotify(Field.STATUS_MOVE_FOCUS_VERTICALLY);

    return result;
}

// Example of a FieldChangeListener
public void focusChanged(Field field, int eventType) {
    if (!(field instanceof ListField) {
        return;
    }

    ListField list = (ListField) field;

    if (list.getSelectedIndex() >= list.getSize() - 4) {
        if (this.searchFinish) {
            this.searchFinish = false;

            // Call your web service here

            this.page++;
        }
    }
}

(Code have not been tested)

Tags: BlackBerry Developers

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