title: Add new task to JobScheduler by PendingIntent
body: <p>As new Background Service Limitations was released by Android Team <a href="https://developer.android.com/preview/features/background.html" rel="nofollow noreferrer">"here"</a>, there is a problem to start Intent Service by setting a click Pending Intent on Widget(home-screen) Button in Android O. My question is: How can i add a new task to JobScheduler by click on Widget Button? </p>