Background Fetch의 실행 간격을 확보해 봤습니다.

어떤 앱으로 백그라운드 페치 도입을 논의하던 중 실제 실행 간격을 의식해 이제야 샘플을 제작한 앱에 대한 조사를 시작했다.
분명히 말하지만 Background Fetch라는 기능의 특징을 다시 들자면

정기 집행 아니에요.
실행 간격은 OS에 의해 결정됩니다

.

애플리케이션 종료 후 실행 안 함
애플리케이션이 백그라운드 상태(종료가 아닌 중지 중)

짧은 실행 시간
다른 작업이 아닌 애플리케이션 가동(30초)

iOS 7 출시 당시 iOS도 안드로이드처럼 가능한가요?이런 기대는 모두가 알고 있는 바와 같이 크게 배신당했다.

샘플 응용 프로그램

백그라운드 페치가 등장한 지 오래됐기 때문에 검색이 되면 다양한 정보가 나온다.그래서 이미 누군가가 똑같은 짓을 했어.
[IPHONE] Background Fetch 백그라운드 처리
이 블로그의 코드를 참고하여 Xcode8+Swift3 환경에 모바일 앱을 설치하여 잠시 돌려보았습니다.

결실

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프로그램이 끝난 후에 Background Fetch가 움직일 수 없기 때문에 나는 프로그램을 적당히 프론트 데스크로 가져갈 것이다.
그리고 최초 실행까지는 시간이 좀 걸릴 것 같고, 최초 실행 기록은 설치부터 몇 시간이 지났다.

고찰하다.

이 견본 응용 프로그램은 항상 응답에 성공했기 때문에 실행 간격이 짧게 조정되었습니다.
UIBackgroundFetchResult.뉴데이터 반환 간격이 길어지면 더 길어지겠죠.
1시간에 1번 이상 움직이기 때문에 잘 활용되는 장면이 있을 수 있다.