6057102dbb
Each TV input service is now required to query the system whether the user is allowed to watch the current program before showing it to the user if the parental control is turned on, which can be checked by calling TvParentalControlManager.isEnabled(). Whether the TV input service should block the content or not is determined by invoking TvParentalControlManager.isRatingBlocked() with the content rating for the current program. Then the TvParentalControlManager makes a judgment based on the user blocked ratings stored in the secure settings and returns the result. If the rating in question turns out to be blocked, the TV input service must immediately block the content and call this method with the content rating of the current program to prompt the PIN verification screen. Each TV input service also needs to continuously listen to any changes made to the parental control settings by registering a TvParentalControlManager.ParentalControlCallback() to the manager and immediately reevaluate the current program with the new parental control settings. Bug: 13172379 Change-Id: I8e1900d4b8d28c56798986d5c3906bd418ab97ac