iOS_時間戳與時間間的互相轉化

時間轉時間戳

    NSString *timeSp = [NSString stringWithFormat:@"%d", (long)[datenow timeIntervalSince1970]];
    NSLog(@"timeSp:%@",timeSp); //時間戳的值

時間戳轉時間(1)

    NSDate *confromTimesp = [NSDate dateWithTimeIntervalSince1970:1296035591];
    NSLog(@"1296035591  = %@",confromTimesp);      
    NSString *confromTimespStr = [formatter stringFromDate:confromTimesp];
    NSLog(@"confromTimespStr =  %@",confromTimespStr);

時間戳轉時間(2)

NSDateFormatter* formatter = [[NSDateFormatter alloc] init];
[formatter setDateStyle:NSDateFormatterMediumStyle];
[formatter setTimeStyle:NSDateFormatterShortStyle];
[formatter setDateFormat:@"yyyyMMddHHMMss"];
NSDate *date = [formatter dateFromString:@"1283376197"];
NSLog(@"date1:%@",date);
[formatter release];