ios - Processing (sending/receiving) UDP data in background -


i'm developing app in xamarin ios/android send , receive data using udp.

would possible while app running in background or when screen has gone sleep?

much when facebook messenger app in active call.

short answer (for ios): no. background fetch opportunistic, can't force it. remote notifications can triggered remotely processing time limited.

voip apps use libraries provided apple perform tasks (e.g: pushkit, callkit), , make use of voip background mode. have @ background execution. can't download content in background whenever want though, there limits (in notifications, data processing, etc.)


on android, can use services, that can perform long-running operations in background, , not provide user interface.

the closest android services remote notifications or background fetch. allowed background execution modes (excerpt):

  • apps play audible content user while in background, such music player app
  • apps record audio content while in background
  • apps keep users informed of location @ times, such navigation app
  • apps support voice on internet protocol (voip)
  • apps need download , process new content regularly
  • apps receive regular updates external accessories

declaring services lets system know services use, in cases system frameworks prevent application being suspended.

background fetch caveat:

enabling mode not guarantee system give app time perform background fetches


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