Should I ever pass data back to a main activity?
<p>My theory is that my main activity will open <code>LoginActivity</code>, then that activity will pass the <code>User</code> back to the main activity, which would launch <code>DashboardActivity</code> and stop <code>LoginActivity</code>.</p>

<p>Does this make sense or should I do this differently?  I'm looking for best practice advice.</p>
