how can i get the boot time of ios in objective c ?
Is there a way to get it?
Don't know if this will work in iOS, but in OS X (which is essentially the same OS) you would use sysctl(). This is how the OS X Unix utility uptime
does it. Source code is available - search for "boottime".
#include <sys/types.h>
#include <sys/sysctl.h>
// ....
#define MIB_SIZE 2
int mib[MIB_SIZE];
size_t size;
struct timeval boottime;
mib[0] = CTL_KERN;
mib[1] = KERN_BOOTTIME;
size = sizeof(boottime);
if (sysctl(mib, MIB_SIZE, &boottime, &size, NULL, 0) != -1)
{
// successful call
NSDate* bootDate = [NSDate dateWithTimeIntervalSince1970:boottime.tv_sec];
}
The restricted nature of programming in the iOS sandboxed environment might make it not work, I don't know, I haven't tried it.