Merge pull request #1 from Dimi20cen/fix-key-events

Fix key events

math_hurdlerActivity.py

@@ -33,6 +33,7 @@ def __init__(self, handle):
         # Note that set_canvas implicitly calls read_file when
         # resuming from the Journal.
         self.set_canvas(self._pygamecanvas)
+        self._pygamecanvas.grab_focus()
 
         # Start the game running (self.game.run is called when the
         # activity constructor returns).