title: python kivy boxlayout set position
body: <p>I am positioning the BoxLayout using this method</p>
  
  <pre><code>layout = BoxLayout(size_hint=(1, None), height=50, spacing=100, pos_hint={'y': 0.5 , 'top': 0.5})
  </code></pre>
  
  <p>however it centers in the middle, i want it to be placed in the top centre of the FloatLayout.</p>
  
  <p>Also the code when run gives this warning....</p>
  
  <pre><code>[CRITICAL          ] [Clock       ] Warning, too much iteration done before the next frame. Check your code, or increase the Clock.max_iteration attribute
  [CRITICAL          ] [Clock       ] Warning, too much iteration done before the next frame. Check your code, or increase the Clock.max_iteration attribute
  [CRITICAL          ] [Clock       ] Warning, too much iteration done before the next frame. Check your code, or increase the Clock.max_iteration attribute
  [CRITICAL          ] [Clock       ] Warning, too much iteration done before the next frame. Check your code, or increase the Clock.max_iteration attribute
  [CRITICAL          ] [Clock       ] Warning, too much iteration done before the next frame. Check your code, or increase the Clock.max_iteration attribute
  [INFO              ] [Base        ] Leaving application in progress...
  </code></pre>
  
  <p>below is the code:</p>
  
  <pre><code>import kivy
  from kivy.app import App
  from kivy.uix.anchorlayout import AnchorLayout
  from kivy.uix.floatlayout import FloatLayout
  from kivy.uix.gridlayout import GridLayout
  from kivy.uix.widget import Widget
  from kivy.uix.label import Label
  from kivy.uix.video import Video
  from kivy.uix.relativelayout import RelativeLayout
  from kivy.graphics import *
  from kivy.lang import Builder
  from kivy.uix.boxlayout import BoxLayout
  from random import random
  from kivy.properties import ListProperty
  
  kv = '''
  &lt;ColoredLabel&gt;:
      size: (100,100)
  
      background_color:
      canvas.before:
          Color:
              rgba: self.background_color
          Rectangle:
              pos: self.pos
              size: self.size
      '''
  
  Builder.load_string(kv)
  
  class ColoredLabel(Label):
      background_color = ListProperty((0,0,0,1))
  
  class MyApp(App):
  
      def build(self):
          f = FloatLayout()
          g = GridLayout(cols=5, rows=2, row_force_default=True, row_default_height=80)
          layout = BoxLayout(size_hint=(1, None), height=50, spacing=100, pos_hint={'y': 0.5 , 'top': 0.5})
          v = Video(source='driver.mp4', state='play', options={'eos':'loop'})
          l1 = Label(text="jenkins", font_size=32)
          l2 = Label(text="git", font_size=32)
          f.add_widget(v)
  
          """
          label1 = ColoredLabel(text="jenkins output", pos_hint={'top': 1, 'right': .1}, size_hint=(None, None) , background_color=(160,160,160,.5))
          f.add_widget(label1)
  
          label2 = ColoredLabel(text="git output", pos_hint={'top': 1, 'right': .5}, size_hint=(None, None) , background_color=(160,160,160,.5))
          f.add_widget(label2)
  
          label3 = ColoredLabel(text="dev output", pos_hint={'top': 1, 'right': .8}, size_hint=(None, None) , background_color=(160,160,160,.5))
          f.add_widget(label3)
          """
  
          text1 = "jenkins"
  
          label1 = ColoredLabel(text=text1, background_color=(160,160,160,.5))
          layout.add_widget(label1)
  
          label2 = ColoredLabel(text="git", background_color=(160,160,160,.5))
          layout.add_widget(label2)
  
          label3 = ColoredLabel(text="portal", background_color=(160,160,160,.5))
          layout.add_widget(label3)
  
          f.add_widget(layout)
  
  
          return f
  
  if __name__ == "__main__":
      MyApp().run()
  </code></pre>