gistfile1.txt

import kivy
kivy.require('1.0.0')

from kivy.app import App
from kivy.uix.image import Image
from kivy.core.image import Image as CoreImage
from kivy.uix.button import Button
from kivy.uix.boxlayout import BoxLayout
from kivy.cache import Cache
from kivy.clock import Clock

from glob import glob

def print_cache(*args):
    Cache.print_usage()


class MyApp(App):

    def next_image(self):
        self.cimg = CoreImage(self.file_list.pop(0))
        self.image.texture = self.cimg.texture

    def build(self):
        self.file_list = glob('cache/products/1280*')
        self.cimg = None
        self.image = Image()
        self.button = Button(text='Load Image', on_press=self.next_image)
        layout = BoxLayout()
        layout.add_widget(self.image)
        layout.add_widget(self.button)
        Clock.schedule_interval(print_cache, 1)
        return layout

if __name__ in ('__android__', '__main__'):
    MyApp().run()