Added a simple example for listview, that only takes a list of strings.

examples/widgets/list_simple.py

@@ -0,0 +1,23 @@
+from kivy.uix.listview import ListView
+from kivy.uix.gridlayout import GridLayout
+
+
+class MainView(GridLayout):
+    '''Implementation of a simple list view with 100 items.
+    '''
+
+    def __init__(self, **kwargs):
+        kwargs['cols'] = 2
+        kwargs['size_hint'] = (1.0, 1.0)
+        super(MainView, self).__init__(**kwargs)
+
+        list_view = ListView([str(index) for index in xrange(100)])
+
+        self.add_widget(list_view)
+
+
+if __name__ == '__main__':
+
+    from kivy.base import runTouchApp
+
+    runTouchApp(MainView(width=800))