diff --git a/kivyblocks/blocks.py b/kivyblocks/blocks.py
index 59a02ac..fb96a70 100755
--- a/kivyblocks/blocks.py
+++ b/kivyblocks/blocks.py
@@ -533,7 +533,7 @@ class Blocks(EventDispatcher):
 	
 	@classmethod
 	def getWidgetById(self,id,from_widget=None):
-		def find_widget_by_id(id, from_widget=None):
+		def find_widget_by_id(id, from_widget):
 			if id=='self':
 				return from_widget
 			if hasattr(from_widget,'widget_id'):
@@ -547,6 +547,12 @@ class Blocks(EventDispatcher):
 				ret = find_widget_by_id(id,from_widget=c)
 				if ret:
 					return ret
+			app = App.get_running_app()
+			if from_widget == app.root:
+				w = getattr(app,'fs_widget',None)
+				if w:
+					print('full screen ...............................')
+					return find_widget_by_id(id, w)
 			return None
 		ids = id.split('.')
 		app = App.get_running_app()
diff --git a/kivyblocks/ready.py b/kivyblocks/ready.py
index baced5c..303b163 100644
--- a/kivyblocks/ready.py
+++ b/kivyblocks/ready.py
@@ -1,6 +1,7 @@
 from kivy.event import EventDispatcher
 from kivy.core.window import Window
 from kivy.utils import platform
+from kivy.app import App
 from kivy.properties import BooleanProperty
 
 desktopOSs=[
@@ -64,8 +65,10 @@ class WidgetReady(EventDispatcher):
 						   'no parent.')
 			return
 
+		app = App.get_running_app()
 		if value:
 			Window.fullscreen = True
+			app.fs_widget = self
 			self._fullscreen_state = state = {
 				'parent': self.parent,
 				'pos': self.pos,
@@ -91,6 +94,7 @@ class WidgetReady(EventDispatcher):
 			self.pos_hint = {}
 			self.size_hint = (1, 1)
 		else:
+			app.fs_widget = None
 			Window.fullscreen = False
 			#if platform in desktopOSs:
 			#	Window.restore()