Initial Kivy test.

main.py

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+from kivy.app import App
+from kivy.core.window import Window
+from kivy.modules import inspector
+from kivy.uix.boxlayout import BoxLayout
+from kivy.uix.button import Button
+from kivy.uix.gridlayout import GridLayout
+from kivy.uix.scrollview import ScrollView
+from kivy.uix.textinput import TextInput
+
+
+class TestApp(App):
+    def __init__(self):
+        App.__init__(self)
+        self.results = []
+
+    def on_omnibox_change(self, _instance, value):
+        print("⇒", value)
+        while self.results:
+            btn = self.results.pop()
+            self.layout.remove_widget(btn)
+
+        for i in range(100):
+            btn = Button(text=value + str(i), height=40, size_hint_y=None)
+            self.layout.add_widget(btn)
+            self.results.append(btn)
+
+    def build(self):
+        self.root = BoxLayout(orientation="vertical", spacing=5)
+        # Make sure the height is such that there is something to scroll.
+        self.root.bind(minimum_height=self.root.setter("height"))
+
+        self.omnibox = TextInput(
+            text="",
+            hint_text="Search here files and headlines",
+            multiline=False,
+            write_tab=False,
+            size_hint_y=None,
+            height=40,
+            focus=False,
+        )
+        self.omnibox.bind(text=self.on_omnibox_change)
+        self.root.add_widget(self.omnibox)
+
+        self.viewer = ScrollView(
+            size_hint=(1, 1), size=(Window.width / 2, Window.height / 2)
+        )
+        self.layout = BoxLayout(orientation="vertical", spacing=2, size_hint_y=None)
+        self.layout.bind(minimum_height=self.layout.setter("height"))
+        for i in range(100):
+            btn = Button(text=str(i), height=40, size_hint_y=None)
+            self.layout.add_widget(btn)
+            self.results.append(btn)
+
+        self.viewer.add_widget(self.layout)
+        self.root.add_widget(self.viewer)
+        inspector.create_inspector(Window, self.root)
+        return self.root
+
+
+TestApp().run()

requirements.txt

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+kivy[base]