old_contents: import kivy
  kivy.require('1.0.6') # replace with your current kivy version !
  
  from kivy.app import App
  from kivy.uix.label import Label
  
  import blocker
  import experiments.tcp_connect
  import experiments.http_request
  
  class MyApp(App):
      def build(self):
          blocker.run()
          return Label(text='Hello world')
  
  if __name__ == '__main__':
      MyApp().run()
  
new_contents: import kivy
  kivy.require('1.0.6')
  
  from kivy.app import App
  from kivy.uix.label import Label
  from kivy.uix.widget import Widget
  from kivy.uix.button import Button
  from kivy.uix.listview import ListView
  from kivy.uix.boxlayout import BoxLayout
  
  import blocker
  
  class BlockerApp(App):
      def build(self):
          btn1 = Button(text="Start Tests")
          btn1.bind(on_press=self.start_tests)
  
          btn2 = Button(text="Show Results")
          btn2.bind(on_press=self.btn_pressed)
  
          buttons = BoxLayout(orientation='horizontal')
          buttons.add_widget(btn1)
          buttons.add_widget(btn2)
  
          layout = BoxLayout(orientation="vertical")
          layout.add_widget(buttons)
  
          return layout
  
      def start_tests(self, instance):
          blocker.run()
  
      def btn_pressed(self, instance):
          print instance.text
  
  
  if __name__ == '__main__':
      BlockerApp().run()
  
subject: improve android app ui