new_contents: from kivy.uix.textinput import TextInput
  from kivy.uix.anchorlayout import AnchorLayout
  from kivy.base import runTouchApp
  
  if __name__ == '__main__':
      root = AnchorLayout()
      root.add_widget(TextInput(size_hint=(None, None), size=(100, 50)))
      runTouchApp(root)
  
subject: add simple example of textinput to test with vkeyboard