Invalidate the screen after closing popup
Hello world
I have 2 classes, say MenuClass and a PopUpClass citing the click MenuClass button. When I close the PopUpClass I want to MenuClass to paint all over it. I use invaliate() now, but no result:
//button in PopUpClass
protected boolean navigationClick(int status, int time) {
this.getScreen().close();
invalidate();
return true;
}
OK, I understand. Here is a way, I hope you will implement a variation on this depending on yourself, as the implementation I describe is not really how I'd do, but it is how it is easier to explain. :
You have Popup1Screen, which displays the choices. There are also two public methods called, additional
getSelectedFocusBitmap()
and
getSelectedUnfocusBitmap()
returning selected bitmaps.
In your MenuScreen, you have a button called popup1Button, which calls Popup1Screen. You have also a FieldChangeListener. Purposes of argument, we will say that this listening port is your MenuScreen.
Thus, in
fieldChanged (field f, int context) {}
..
}
Have the following items:
If (f == popup1Button) {}
Popup1Screen popup1screen = new Popup1Screen();
UiApplication.getUiApplication.pushModal (popup1screen);
Will return here when the screen is closed
Bitmap newFocusBitmap = popup1screen.getSelectedFocusBitmap ();
Bitmap newUnfocusBitmap = popup1screen.getSelectedUnfocusBitmap ();
Now, change the bitmaps in popup1Button and, of course, it is repainted, you invalidate() it
but you should not, so don't do that if you need to. .
..
} else...
Hope that makes sense
Tags: BlackBerry Developers
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