title: onUpdate() of AppWidgetProvider not called by given time?
body: <p>I am working on widget app,in widget xml i declare attribute android:updatePeriodMillis="1000" , means onUpdate will call after every 1000ms.</p>
  
  <p>But it's not calling automatically,</p>
  
  <p>pls let me know why it's happening?</p>