Hi
When I am adding a new mainscreen object as a child of the delegateManager of another MainScreen it gives exception.
Since we know that :
Any object of type Field can be added to a manager, including other managers and screens.If a manager or a screen is added to the current manager of a screen, they become child objects and behave as any other field.
So when I tried to add a new MainScreen() object as a child of the current MainScreen, it gives exception.
Yes I can do pushScreen() but that will be like replacement of current Screen. Actually I need to add new MainScreen object with in the current MainScreen.
MyMainScreen :
public class MyMainScreen extends MainScreen implements FieldChangeListener
{
private ButtonField btnField = null;
private NewChildScreen testScreen = null;
public MyMainScreen()
{
btnField = new ButtonField("Hello", ButtonField.CONSUME_CLICK | ButtonField.USE_ALL_WIDTH
| ButtonField.FIELD_HCENTER);
btnField.setMargin(10, 0, 10, 10);
testScreen = new NewChildScreen();
add(btnField);
btnField.setChangeListener(this);
}
protected boolean onSavePrompt()
{
return true;
}
protected boolean navigationClick(int status, int time)
{
fieldChangeNotify(11);
return true;
}
public void fieldChanged(Field field, int context)
{
if (field == btnField)
{
try
{
add(testScreen);
}
catch (Exception e)
{
Dialog.alert("Exception : "+e.getMessage());
}
}
}
}
NewChildScreen:
public class NewChildScreen extends MainScreen
{
private ButtonField button = null;
public NewChildScreen()
{
super(USE_ALL_HEIGHT | USE_ALL_WIDTH);
setTitle("New Screen");
getMainManager().setBackground(BackgroundFactory.createSolidBackground(Color.BLUEVIOLET));
button =new ButtonField("New Button", ButtonField.FIELD_HCENTER);
add(button);
}
}
Is there any mistake I am committing while implementation.
I have been trying to implement this but not succeeded yet. I also searched forum but didn't got much help about my problem.
Please help.
