title: Lazy loading images in ViewPager
body: <p>So i have 6 categories of pictures and each category has like 150-200 pictures. Each picture has a size of 1MB-10MB. Im not sure how to optimise the loading of the pictures. My ViewPager shows 4 pictures at the same time from 1 category which is selected and can swipe trough all pictures of that category.
  Could someone lead me in the right direction? Im new to android/programming and everything i have found yet is to complicated. </p>
  
  <p>Thanks.</p>
  
  <p>Edit: I also have a 270MB movie that im not sure how to load so it feels "fast".</p>