View source for iOS Interuptions during Playback

== Interruptions during playback ==
As part of integrating Nielsen App SDK with the player application, the Audio / Video app developer needs to handle the following possible interruption scenarios:
* Pause / Play
* Network Loss (Wi-Fi / Airplane / Cellular)
* Call Interrupt (SIM or Third party Skype / Hangout call)
* Alarm Interrupt
* Content Buffering
* Device Lock / Unlock 
* App going in the Background/Foreground 
* Channel / Station Change Scenario
* Unplugging of headphone
In case of encountering one of the above interruptions, the player application needs to
* Call [[stop]] immediately (except when content is buffering) and withhold sending playhead position.
* Start sending API calls – <code>'loadMetadata'</code> and <code>'playheadPosition'</code> for the new viewing session, once the playback resumes.
Please see the [https://engineeringportal.nielsen.com/docs/Digital_Measurement_Interruption_Scenarios Interruption Scenarios Page] for more details