title: Start Activity of Main project from my library project
body: <p>I have 2 projects. One is my Main Project(A) , and another is a Library Project(B). I want to start an activity which is present in A from an activity which is located in B. How do I do that ?</p>
  <p>I Tried <code>startActivity(getApplicationContext(),B.class);</code>
  ,but</p>
  <p><strong>B.class</strong></p>
  <p>is not resolved.</p>
  <p>How Can I let my library project start an activity of my main project ?</p>