title: Start activity from application context in another process
body: <p>For starting activity outside activity context, we will use application context. Like applicationContext.startActivity(new Intent(TestActivity.class ....))</p>
  
  <p>If the service which call startActivity is in another process, is the applicatioContext also belongs to another process? Will android create applicationContext for every process component is running?</p>
  
  <p>If we do not specify the process TestActivity is running, will it also be able to start from another process?</p>