title: change classes in android sdk
body: <p>I want to use some special classes about Bluetooth low energy and 
  a company send me a directory "classes" with all that stuff.</p>
  
  <p>I included this directory in eclipse, but i think its not working right, because eclipse doesnt know one special method of the sourcecode (of the company), which i added with import function as a project in eclipse.</p>
  
  <p>Is there another possibility to add new classes to android? Or has somoeone an idea, what i´m doing wrong? </p>
  
  <p>I hope someone can help me.</p>
  
  <p>Thanks!</p>
  
  <p>Best regards! </p>