voip - iOS pushKit pushRegistry:(PKPushRegistry *)registry didUpdatePushCredentials neverCall in Individual devices -


  1. is open
  2. capabilities -push notifications open
  3. background mode : voice on ip open backgroud fetch open remote notifications open location updaete open; code : enter image description here

delegate <pkpushregistrydelegate> observe device (especially small probability) never call didupdatepushcredentials() mothod, tested many times, (uninstall app, install app),it never call method, when restart device method called, has ever been fall in situation? can explain this?


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