Links to get start with android

 http://developer.android.com/tools/workflow/index.html  
 http://androidprogrammingstuff.blogspot.in/2012/08/execution-flow-of-android-application.html  
 http://pivotal.github.io/robolectric/  
 http://www.vogella.com/articles/Android/article.html   
 http://cleancodedevelopment-qualityseal.blogspot.com/2012/12/first-android-app-step-by-step.html  
 http://www.bogotobogo.com/Android/android11JUnitTest.php   
 for webservice  
 http://www.techrepublic.com/blog/app-builder/calling-restful-services-from-your-android-app/1076