First functioning version of app!

Templates/dropdown_button.py

@@ -0,0 +1,52 @@
+#!/usr/bin/env python3
+# *_* coding: utf-8 *_*
+
+# Kivy module imports
+from kivy.uix.button import Button
+from kivy.uix.dropdown import DropDown
+
+
+class DropdownButton(Button):
+    def __init__(self, option_list=None, **kwargs):
+        # ensure "text" kwarg isnt present
+        if "test" in kwargs:
+            kwargs.pop("test")
+
+        # Add default args if they're not specifically assigned
+        self.defaultkwargs = \
+            {"background_color": [x*0.75 for x in self.background_color],
+             }
+
+        for keyword, arg in self.defaultkwargs.items():
+            if keyword not in kwargs:
+                kwargs[keyword] = arg
+
+        self.kwargs = kwargs
+        super(DropdownButton, self).__init__(**self.kwargs)
+
+        # Create lambdas for callbacks
+        self.__bind_button = lambda btn: self.dropdown_list.select(btn.text)
+        self.__update_label = lambda instance, x: setattr(self, "text", x)
+
+        if option_list is not None:
+            self.populate_dropdown(option_list)
+
+    def populate_dropdown(self, option_list):
+        kwargs = self.kwargs.copy()
+        kwargs["size_hint_y"] = None
+        if "height" not in kwargs:
+            kwargs["height"] = 50
+        if "__no_builder" in kwargs:
+            kwargs.pop("__no_builder")
+
+        self.dropdown_list = None
+        self.dropdown_list = DropDown()
+
+        for x in option_list:
+            button = Button(text=x, **kwargs)
+            # button = Button(text=x, size_hint_y=None, height=50)
+            button.bind(on_release=self.__bind_button)
+            self.dropdown_list.add_widget(button)
+
+        self.bind(on_release=self.dropdown_list.open)
+        self.dropdown_list.bind(on_select=self.__update_label)