title: android how to use setLayoutDirection in android 2.2
body: <p>I want to use <code>LTR</code> (left to right) and <code>RTL</code> (right to left) in my application.</p>
  
  <p>I read this post <a href="http://android-developers.blogspot.co.uk/2013/03/native-rtl-support-in-android-42.html" rel="nofollow">http://android-developers.blogspot.co.uk/2013/03/native-rtl-support-in-android-42.html</a></p>
  
  <p>I search a lot in order to know how to use this function in android 2.2.</p>