Custom Popups in Blackberry

Procedure:

1) Create a class that extends Popup .
2) In this class use your own manager
a) take one vertical field manager
b) add some text using label field and also a button inside this vertica field manager
c) And add vertical field manager in your screen


PopupScreen popup = new PopupScreen(new VerticalFieldManager());
popup.add(new LabelField("Hello!"));
popup.add(new ButtonField("OK"));


Create Border less Popup screen
PopupScreen popup = new PopupScreen(new VerticalFieldManager());
popup.add(new LabelField("Hello!"));
Border border = BorderFactory.createSimpleBorder(new XYEdges(), Border.STYLE_TRANSPARENT);
popup.setBorder(border);


Push popup screen:
UiApplication.getUiApplication().pushScreen(new MyPopup());

Closing a popup scren when uer clicks on Escape Key:
Need to implement Keychar method

popupscreen1=new PopupScreen(myverticalfieldmanager)
   {
        protected boolean keyChar(char c, int status, int time)
          {
               if (c == Characters.ESCAPE)
              close();
              return super.keyChar(c, status, time);
         }
   };


Have a look at this: