title: Get resource ID of the icon of another android application
body: <p>Is there a way to get the <strong>resource ID</strong> of the icon of another android app? (ex. <code>com.android.systemui.R.drawable.ic_xxx</code>)</p>
  
  <p>I tried <code>context.getApplicationInfo().icon</code> but it returned a long integer. 
  Is this possible?</p>
  
  <p>Thanks</p>