Merge branch 'master' of github.com:tito/kivy

kivy/lang.py

@@ -710,7 +710,10 @@ class BuilderBase(object):
         listwidget = self.listwidget[:]
         self.listwidget = []
         for widget in listwidget:
+            self._push_ids()
+            self.idmap['root'] = widget
             self.apply(widget)
+            self._pop_ids()
 
     def build_handler(self, element, key, value, idmap, is_widget):
         if key.startswith('on_'):

kivy/uix/boxlayout.py

@@ -71,6 +71,10 @@ class BoxLayout(Layout):
         kwargs.setdefault('size', (1, 1))
         self._minimum_size = (0, 0)
         super(BoxLayout, self).__init__(**kwargs)
+        self.bind(
+            spacing = self.update_minimum_size,
+            padding = self.update_minimum_size,
+            orientation = self.update_minimum_size)
         self.bind(
             spacing = self._trigger_layout,
             padding = self._trigger_layout,