Cannot remove the tank on once implemented editField keyChar

In simple codes below, there is an editField in the screen. For Storm OS 4.7, once I entered a word in the edit field, I can't use the BACKSPACE key to delete any letter. The only way is to add a letter so that all letters are highlighted. Then only the BACKSPACE key will seek to remove the letters.

If I set the keyChar method comment, I can add/remove letters freely.

Did I miss something in the keyChar implementation and this removal of cuased letter is not not possible?

Thank you

class HomeScreen extends UiApplication {

    public static void main(String[] args)
    {
        HomeScreen app = new HomeScreen();
        app.enterEventDispatcher();
    }

    HomeScreen() {
        pushScreen(new EditScreen());
    }

    private class EditScreen extends MainScreen {

        EditScreen(){
            add(new EditField(EditField.EDITABLE));
        }

        protected boolean keyChar(char key, int status,  int time){
            boolean result = false;
            if (key == Characters.ESCAPE){
                Dialog.alert("Escape key is pressed");
                result = true;
            }

            return result;
        }
    }
}
protected boolean keyChar(char key, int status,  int time){    if (key == Characters.ESCAPE){          Dialog.alert("Escape key is pressed");

        // consuming event if escape pressed         return true;       } else {         // for non-escape keys passing call to the parent          return super.keyChar(key, status, time);                        }}

Tags: BlackBerry Developers

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