장치가 종료 될 때 현재 시간 가져 오기

Question

프로그래밍 초보자입니다. 기기가 꺼지면 내 앱이 업데이트되어야하므로 기기가 꺼지면 현재 시간이 필요합니다.

그리고 나는 우리가 [NSProcessInfo processInfo] .systemUptime을 사용하여 시스템 부팅 시간 (스위치 켜기 시간)을 얻을 수 있음을 알고 있습니다.

하지만 시간이 필요합니다. 그것을 얻을 수있는 방법이 있습니까! 그렇다면 어떻게 알려주십시오 ...? 편집 : 아니요, 이유를 알려주세요 ...!

나는 또한 아래 링크를 참조했다. 시스템 부팅 시간 (스위치 온 시간) 만 제공합니다. Getting iOS system uptime, that doesn't pause when asleep

거기에 있다면 맞는 해결책을주세요 ...!

Answer 1

종료 할 때 파일을 터치합니다. % touch mytimeToreboot

Answer 2

종료 시간을 얻을 수 없습니다. 재부팅 시간 만 얻을 수 있습니다.

Apple에서 제공하는 정보는 다음과 같습니다. 내 지식에

#define KERN_OSTYPE  1 /* string: system version */ 
#define KERN_OSRELEASE  2 /* string: system release */ 
#define KERN_OSREV  3 /* int: system revision */ 
#define KERN_VERSION   4 /* string: compile time info */ 
#define KERN_MAXVNODES  5 /* int: max vnodes */ 
#define KERN_MAXPROC   6 /* int: max processes */ 
#define KERN_MAXFILES  7 /* int: max open files */ 
#define KERN_ARGMAX  8 /* int: max arguments to exec */ 
#define KERN_SECURELVL  9 /* int: system security level */ 
#define KERN_HOSTNAME  10 /* string: hostname */ 
#define KERN_HOSTID  11 /* int: host identifier */ 
#define KERN_CLOCKRATE  12 /* struct: struct clockrate */ 
#define KERN_VNODE  13 /* struct: vnode structures */ 
#define KERN_PROC  14 /* struct: process entries */ 
#define KERN_FILE  15 /* struct: file entries */ 
#define KERN_PROF  16 /* node: kernel profiling info */ 
#define KERN_POSIX1  17 /* int: POSIX.1 version */ 
#define KERN_NGROUPS  18 /* int: # of supplemental group ids */ 
#define KERN_JOB_CONTROL 19 /* int: is job control available */ 
#define KERN_SAVED_IDS  20 /* int: saved set-user/group-ID */ 
#define KERN_BOOTTIME  21 /* struct: time kernel was booted */ 
#define KERN_NISDOMAINNAME 22 /* string: YP domain name */ 
#define KERN_DOMAINNAME  KERN_NISDOMAINNAME 
#define KERN_MAXPARTITIONS 23 /* int: number of partitions/disk */ 
#define KERN_KDEBUG   24 /* int: kernel trace points */ 
#define KERN_UPDATEINTERVAL 25 /* int: update process sleep time */ 
#define KERN_OSRELDATE  26 /* int: OS release date */ 
#define KERN_NTP_PLL  27 /* node: NTP PLL control */ 
#define KERN_BOOTFILE  28 /* string: name of booted kernel */ 
#define KERN_MAXFILESPERPROC 29 /* int: max open files per proc */ 
#define KERN_MAXPROCPERUID 30 /* int: max processes per uid */ 
#define KERN_DUMPDEV  31 /* dev_t: device to dump on */ 
#define KERN_IPC  32 /* node: anything related to IPC */ 
#define KERN_DUMMY  33 /* unused */ 
#define KERN_PS_STRINGS 34 /* int: address of PS_STRINGS */ 
#define KERN_USRSTACK32 35 /* int: address of USRSTACK */ 
#define KERN_LOGSIGEXIT 36 /* int: do we log sigexit procs? */ 
#define KERN_SYMFILE  37 /* string: kernel symbol filename */ 
#define KERN_PROCARGS  38 
          /* 39 was KERN_PCSAMPLES... now deprecated */ 
#define KERN_NETBOOT  40 /* int: are we netbooted? 1=yes,0=no */ 
          /* 41 was KERN_PANICINFO : panic UI information (deprecated) */ 
#define KERN_SYSV  42 /* node: System V IPC information */ 
#define KERN_AFFINITY  43 /* xxx */ 
#define KERN_TRANSLATE  44 /* xxx */ 
#define KERN_CLASSIC  KERN_TRANSLATE /* XXX backwards compat */ 
#define KERN_EXEC  45 /* xxx */ 
#define KERN_CLASSICHANDLER KERN_EXEC /* XXX backwards compatibility */ 
#define KERN_AIOMAX  46 /* int: max aio requests */ 
#define KERN_AIOPROCMAX  47 /* int: max aio requests per process */ 
#define KERN_AIOTHREADS  48 /* int: max aio worker threads */ 
#ifdef __APPLE_API_UNSTABLE 
#define KERN_PROCARGS2  49 
#endif /* __APPLE_API_UNSTABLE */ 
#define KERN_COREFILE  50 /* string: corefile format string */ 
#define KERN_COREDUMP  51 /* int: whether to coredump at all */ 
#define KERN_SUGID_COREDUMP 52 /* int: whether to dump SUGID cores */ 
#define KERN_PROCDELAYTERM 53 /* int: set/reset current proc for delayed termination during shutdown */ 
#define KERN_SHREG_PRIVATIZABLE 54 /* int: can shared regions be privatized ? */ 
          /* 55 was KERN_PROC_LOW_PRI_IO... now deprecated */ 
#define KERN_LOW_PRI_WINDOW 56 /* int: set/reset throttle window - milliseconds */ 
#define KERN_LOW_PRI_DELAY 57 /* int: set/reset throttle delay - milliseconds */ 
#define KERN_POSIX  58 /* node: posix tunables */ 
#define KERN_USRSTACK64  59 /* LP64 user stack query */ 
#define KERN_NX_PROTECTION 60 /* int: whether no-execute protection is enabled */ 
#define KERN_TFP  61 /* Task for pid settings */ 
#define KERN_PROCNAME  62 /* setup process program name(2*MAXCOMLEN) */ 
#define KERN_THALTSTACK  63 /* for compat with older x86 and does nothing */ 
#define KERN_SPECULATIVE_READS 64 /* int: whether speculative reads are disabled */ 
#define KERN_OSVERSION  65 /* for build number i.e. 9A127 */ 
#define KERN_SAFEBOOT  66 /* are we booted safe? */ 
      /* 67 was KERN_LCTX (login context) */ 
#define KERN_RAGEVNODE  68 
#define KERN_TTY  69 /* node: tty settings */ 
#define KERN_CHECKOPENEVT  70  /* spi: check the VOPENEVT flag on vnodes at open time */ 
#define KERN_THREADNAME  71 /* set/get thread name */ 
#define KERN_MAXID  72 /* number of valid kern ids */ 
/* 
* Don't add any more sysctls like this. Instead, use the SYSCTL_*() macros 
* and OID_AUTO. This will have the added benefit of not having to recompile 
* sysctl(8) to pick up your changes. 
*/