title: out of memory error on some devices
body: <p>in my app i have one layout and i set background for root view of it(relative layout)</p>
  
  <pre><code>    android:background="@drawable/paris"
  </code></pre>
  
  <p>when i test app on my mobile(xpreia z),nexus 5 emulator, or tablet emulators everything is ok but run this app on nexus s emulator nexus ,nexus 4 emulator and... stopped wtih out of memory error.
  my image that set to background only has 1.4 m size. </p>
  
  <p>1-if heap size for every app is almost 12m
  why my app that have only one image with 1.4m size and little code and library generate out of memory error?</p>
  
  <p>2-What should I do to avoid this error and be certain that my app run in all devices without out of memory error?</p>
  
  <p>thanks and sorry for my bad english.</p>