title: Get the In app subscription trail period programmatically
body: <p>I am working in an android application where I want to implement inapp billing subscription. I have created a subscription ID in the Google Play Developer Console with a trial period of seven days.</p>
  <p>My requirement is to notify the user each time with the remaining days left for subscription when the app launches. So how can I get the trial period left for subscription <strong>programmatically</strong>. Is this the correct way to implement inapp billing subscription with trial period, if no please suggest me the correct way to implement this.</p>