title: Supporting Different Screens
body: <p>im working on Supporting different Screen for android
  i created different drawable folders and pasted pics according to their requirments like as bellow</p>
  
  <pre><code>drawable-ldpi = 240*320 px (dimension)
  drawable-mdpi = 320*480px
  drawable-hdpi = 480 * 800px
  drawable-xhdpi=720*1280px
  </code></pre>
  
  <p>and then i copy paste layouts in coresponding layout folders like</p>
  
  <pre><code>layout-small
  layout-normal 
  layout -land
  layout-land-small
  </code></pre>
  
  <p>etc etc
  now when i open the activity_main(layout) of each folder,it has to select the background photo form corresponding folders of drawable,but it select only one photo from drawable-hdpi in all layouts.
  where is problem???</p>