将来的自己,会感谢现在努力的自己!

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iOS获取各类基本信息（型号，cpu）

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本文字数： 17k 阅读时长 ≈ 16 分钟
获取iOS设备的一些信息，随着设备的不断更新，有些方法可能会有过时的情况。

一、获取基本信息

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NSString *deviceName = [self getDeviceName]; // 这个方法后面会列出来
NSLog(@"设备型号-->%@", deviceName);

NSString *iPhoneName = [UIDevice currentDevice].name;
NSLog(@"iPhone名称-->%@", iPhoneName); 

NSString *appVerion = [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleShortVersionString"];
NSLog(@"app版本号-->%@", appVerion);

CGFloat batteryLevel = [[UIDevice currentDevice] batteryLevel];
NSLog(@"电池电量-->%f", batteryLevel);

NSString *localizedModel = [UIDevice currentDevice].localizedModel;
NSLog(@"localizedModel-->%@", localizedModel);

NSString *systemName = [UIDevice currentDevice].systemName;
NSLog(@"当前系统名称-->%@", systemName);

NSString *systemVersion = [UIDevice currentDevice].systemVersion;
NSLog(@"当前系统版本号-->%@", systemVersion);

struct utsname systemInfo;
uname(&systemInfo);
NSString *device_model = [NSString stringWithCString:systemInfo.machine encoding:NSUTF8StringEncoding];
NSLog(@"device_model-->%@", device_model);

NSString *macAddress = [self getMacAddress];// 这个方法后面会单独列出
NSLog(@"macAddress-->%@", macAddress);

NSString *deviceIP = [self getDeviceIPAddresses];// 这个方法后面会单独列出
NSLog(@"deviceIP-->%@", deviceIP);

1.1、设备上次重启的时间

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NSTimeInterval time = [[NSProcessInfo processInfo] systemUptime];
NSDate *lastRestartDate = [[NSDate alloc] initWithTimeIntervalSinceNow:(0 - time)];

广告位标识符：在同一个设备上的所有App都会取到相同的值，是苹果专门给各广告提供商用来追踪用户而设的，用户可以在 设置|隐私|广告追踪里重置此id的值，或限制此id的使用，故此id有可能会取不到值，但好在Apple默认是允许追踪的，而且一般用户都不知道有这么个设置，所以基本上用来监测推广效果，是绰绰有余了

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NSString *idfa = [[[ASIdentifierManager sharedManager] advertisingIdentifier] UUIDString];
NSLog(@"广告位标识符idfa-->%@", idfa);

UUID是Universally Unique Identifier的缩写，中文意思是通用唯一识别码。它是让分布式系统中的所有元素，都能有唯一的辨识资讯，而不需要透过中央控制端来做辨识资讯的指 定。这样，每个人都可以建立不与其它人冲突的 UUID。在此情况下，就不需考虑数据库建立时的名称重复问题。苹果公司建议使用UUID为应用生成唯一标识字符串。

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NSString *uuid = [[[UIDevice currentDevice] identifierForVendor] UUIDString];
NSLog(@"唯一识别码uuid-->%@", uuid);

1.2、获取设备型号

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// 获取设备型号然后手动转化为对应名称  需要导入 "sys/utsname.h"
- (NSString *)getDeviceName
{
    struct utsname systemInfo;
    uname(&systemInfo);
    NSString *deviceString = [NSString stringWithCString:systemInfo.machine encoding:NSUTF8StringEncoding];
     
    if ([deviceString isEqualToString:@"iPhone3,1"])    return @"iPhone 4";
    if ([deviceString isEqualToString:@"iPhone3,2"])    return @"iPhone 4";
    if ([deviceString isEqualToString:@"iPhone3,3"])    return @"iPhone 4";
    if ([deviceString isEqualToString:@"iPhone4,1"])    return @"iPhone 4S";
    if ([deviceString isEqualToString:@"iPhone5,1"])    return @"iPhone 5";
    if ([deviceString isEqualToString:@"iPhone5,2"])    return @"iPhone 5 (GSM+CDMA)";
    if ([deviceString isEqualToString:@"iPhone5,3"])    return @"iPhone 5c (GSM)";
    if ([deviceString isEqualToString:@"iPhone5,4"])    return @"iPhone 5c (GSM+CDMA)";
    if ([deviceString isEqualToString:@"iPhone6,1"])    return @"iPhone 5s (GSM)";
    if ([deviceString isEqualToString:@"iPhone6,2"])    return @"iPhone 5s (GSM+CDMA)";
    if ([deviceString isEqualToString:@"iPhone7,1"])    return @"iPhone 6 Plus";
    if ([deviceString isEqualToString:@"iPhone7,2"])    return @"iPhone 6";
    if ([deviceString isEqualToString:@"iPhone8,1"])    return @"iPhone 6s";
    if ([deviceString isEqualToString:@"iPhone8,2"])    return @"iPhone 6s Plus";
    if ([deviceString isEqualToString:@"iPhone8,4"])    return @"iPhone SE";
    // 日行两款手机型号均为日本独占，可能使用索尼FeliCa支付方案而不是苹果支付
    if ([deviceString isEqualToString:@"iPhone9,1"])    return @"国行、日版、港行iPhone 7";
    if ([deviceString isEqualToString:@"iPhone9,2"])    return @"港行、国行iPhone 7 Plus";
    if ([deviceString isEqualToString:@"iPhone9,3"])    return @"美版、台版iPhone 7";
    if ([deviceString isEqualToString:@"iPhone9,4"])    return @"美版、台版iPhone 7 Plus";
    if ([deviceString isEqualToString:@"iPhone10,1"])   return @"国行(A1863)、日行(A1906)iPhone 8";
    if ([deviceString isEqualToString:@"iPhone10,4"])   return @"美版(Global/A1905)iPhone 8";
    if ([deviceString isEqualToString:@"iPhone10,2"])   return @"国行(A1864)、日行(A1898)iPhone 8 Plus";
    if ([deviceString isEqualToString:@"iPhone10,5"])   return @"美版(Global/A1897)iPhone 8 Plus";
    if ([deviceString isEqualToString:@"iPhone10,3"])   return @"国行(A1865)、日行(A1902)iPhone X";
    if ([deviceString isEqualToString:@"iPhone10,6"])   return @"美版(Global/A1901)iPhone X";
     
    if ([deviceString isEqualToString:@"iPod1,1"])      return @"iPod Touch 1G";
    if ([deviceString isEqualToString:@"iPod2,1"])      return @"iPod Touch 2G";
    if ([deviceString isEqualToString:@"iPod3,1"])      return @"iPod Touch 3G";
    if ([deviceString isEqualToString:@"iPod4,1"])      return @"iPod Touch 4G";
    if ([deviceString isEqualToString:@"iPod5,1"])      return @"iPod Touch (5 Gen)";
     
    if ([deviceString isEqualToString:@"iPad1,1"])      return @"iPad";
    if ([deviceString isEqualToString:@"iPad1,2"])      return @"iPad 3G";
    if ([deviceString isEqualToString:@"iPad2,1"])      return @"iPad 2 (WiFi)";
    if ([deviceString isEqualToString:@"iPad2,2"])      return @"iPad 2";
    if ([deviceString isEqualToString:@"iPad2,3"])      return @"iPad 2 (CDMA)";
    if ([deviceString isEqualToString:@"iPad2,4"])      return @"iPad 2";
    if ([deviceString isEqualToString:@"iPad2,5"])      return @"iPad Mini (WiFi)";
    if ([deviceString isEqualToString:@"iPad2,6"])      return @"iPad Mini";
    if ([deviceString isEqualToString:@"iPad2,7"])      return @"iPad Mini (GSM+CDMA)";
    if ([deviceString isEqualToString:@"iPad3,1"])      return @"iPad 3 (WiFi)";
    if ([deviceString isEqualToString:@"iPad3,2"])      return @"iPad 3 (GSM+CDMA)";
    if ([deviceString isEqualToString:@"iPad3,3"])      return @"iPad 3";
    if ([deviceString isEqualToString:@"iPad3,4"])      return @"iPad 4 (WiFi)";
    if ([deviceString isEqualToString:@"iPad3,5"])      return @"iPad 4";
    if ([deviceString isEqualToString:@"iPad3,6"])      return @"iPad 4 (GSM+CDMA)";
    if ([deviceString isEqualToString:@"iPad4,1"])      return @"iPad Air (WiFi)";
    if ([deviceString isEqualToString:@"iPad4,2"])      return @"iPad Air (Cellular)";
    if ([deviceString isEqualToString:@"iPad4,4"])      return @"iPad Mini 2 (WiFi)";
    if ([deviceString isEqualToString:@"iPad4,5"])      return @"iPad Mini 2 (Cellular)";
    if ([deviceString isEqualToString:@"iPad4,6"])      return @"iPad Mini 2";
    if ([deviceString isEqualToString:@"iPad4,7"])      return @"iPad Mini 3";
    if ([deviceString isEqualToString:@"iPad4,8"])      return @"iPad Mini 3";
    if ([deviceString isEqualToString:@"iPad4,9"])      return @"iPad Mini 3";
    if ([deviceString isEqualToString:@"iPad5,1"])      return @"iPad Mini 4 (WiFi)";
    if ([deviceString isEqualToString:@"iPad5,2"])      return @"iPad Mini 4 (LTE)";
    if ([deviceString isEqualToString:@"iPad5,3"])      return @"iPad Air 2";
    if ([deviceString isEqualToString:@"iPad5,4"])      return @"iPad Air 2";
    if ([deviceString isEqualToString:@"iPad6,3"])      return @"iPad Pro 9.7";
    if ([deviceString isEqualToString:@"iPad6,4"])      return @"iPad Pro 9.7";
    if ([deviceString isEqualToString:@"iPad6,7"])      return @"iPad Pro 12.9";
    if ([deviceString isEqualToString:@"iPad6,8"])      return @"iPad Pro 12.9";
    if ([machineString isEqualToString:@"iPad6,11"])    return @"iPad 5 (WiFi)";
    if ([machineString isEqualToString:@"iPad6,12"])    return @"iPad 5 (Cellular)";
    if ([machineString isEqualToString:@"iPad7,1"])     return @"iPad Pro 12.9 inch 2nd gen (WiFi)";
    if ([machineString isEqualToString:@"iPad7,2"])     return @"iPad Pro 12.9 inch 2nd gen (Cellular)";
    if ([machineString isEqualToString:@"iPad7,3"])     return @"iPad Pro 10.5 inch (WiFi)";
    if ([machineString isEqualToString:@"iPad7,4"])     return @"iPad Pro 10.5 inch (Cellular)";
     
   if ([deviceString isEqualToString:@"AppleTV2,1"])    return @"Apple TV 2";
   if ([deviceString isEqualToString:@"AppleTV3,1"])    return @"Apple TV 3";
   if ([deviceString isEqualToString:@"AppleTV3,2"])    return @"Apple TV 3";
   if ([deviceString isEqualToString:@"AppleTV5,3"])    return @"Apple TV 4";
 
    if ([deviceString isEqualToString:@"i386"])         return @"Simulator";
    if ([deviceString isEqualToString:@"x86_64"])       return @"Simulator";
     
    return deviceString;
}

二、mac 地址

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- (NSString *)getMacAddress {
    int mib[6];
    size_t len;
    char *buf;
    unsigned char *ptr;
    struct if_msghdr *ifm;
    struct sockaddr_dl *sdl;
     
    mib[0] = CTL_NET;
    mib[1] = AF_ROUTE;
    mib[2] = 0;
    mib[3] = AF_LINK;
    mib[4] = NET_RT_IFLIST;
     
    if ((mib[5] = if_nametoindex("en0")) == 0) {
        printf("Error: if_nametoindex error/n");
        return NULL;
    }
     
    if (sysctl(mib, 6, NULL, &len, NULL, 0) < 0) {
        printf("Error: sysctl, take 1/n");
        return NULL;
    }
     
    if ((buf = malloc(len)) == NULL) {
        printf("Could not allocate memory. error!/n");
        return NULL;
    }
     
    if (sysctl(mib, 6, buf, &len, NULL, 0) < 0) {
        printf("Error: sysctl, take 2");
        return NULL;
    }
     
    ifm = (struct if_msghdr *)buf;
    sdl = (struct sockaddr_dl *)(ifm + 1);
    ptr = (unsigned char *)LLADDR(sdl);
     
    NSString *outstring = [NSString stringWithFormat:@"xxxxxx", *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), *(ptr+5)];
    free(buf);
     
    return [outstring uppercaseString];
}

三、IP地址

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- (NSString *)getDeviceIPAddresses {
     
    int sockfd = socket(AF_INET, SOCK_DGRAM, 0);
     
    NSMutableArray *ips = [NSMutableArray array];
     
    int BUFFERSIZE = 4096;
     
    struct ifconf ifc;
     
    char buffer[BUFFERSIZE], *ptr, lastname[IFNAMSIZ], *cptr;
     
    struct ifreq *ifr, ifrcopy;
     
    ifc.ifc_len = BUFFERSIZE;
    ifc.ifc_buf = buffer;
     
    if (ioctl(sockfd, SIOCGIFCONF, &ifc) >= 0){
         
        for (ptr = buffer; ptr < buffer + ifc.ifc_len; ){
             
            ifr = (struct ifreq *)ptr;
            int len = sizeof(struct sockaddr);
             
            if (ifr->ifr_addr.sa_len > len) {
                len = ifr->ifr_addr.sa_len;
            }
             
            ptr += sizeof(ifr->ifr_name) + len;
            if (ifr->ifr_addr.sa_family != AF_INET) continue;
            if ((cptr = (char *)strchr(ifr->ifr_name, ':')) != NULL) *cptr = 0;
            if (strncmp(lastname, ifr->ifr_name, IFNAMSIZ) == 0) continue;
             
            memcpy(lastname, ifr->ifr_name, IFNAMSIZ);
            ifrcopy = *ifr;
            ioctl(sockfd, SIOCGIFFLAGS, &ifrcopy);
             
            if ((ifrcopy.ifr_flags & IFF_UP) == 0) continue;
             
            NSString *ip = [NSString  stringWithFormat:@"%s", inet_ntoa(((struct sockaddr_in *)&ifr->ifr_addr)->sin_addr)];
            [ips addObject:ip];
        }
    }
     
    close(sockfd);
    NSString *deviceIP = @"";
     
    for (int i=0; i < ips.count; i++) {
        if (ips.count > 0) {
            deviceIP = [NSString stringWithFormat:@"%@",ips.lastObject];
        }
    }
    return deviceIP;
}

四、CPU

4.1、CPU总数目

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- (NSUInteger)getCPUCount {
    return [NSProcessInfo processInfo].activeProcessorCount;
}

4.2、已使用的CPU比例

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- (float)getCPUUsage {
    float cpu = 0;
    NSArray *cpus = [self getPerCPUUsage];
    if (cpus.count == 0) return -1;
    for (NSNumber *n in cpus) {
        cpu += n.floatValue;
    }
    return cpu;
}

4.3、获取每个cpu的使用比例

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- (NSArray *)getPerCPUUsage {
    processor_info_array_t _cpuInfo, _prevCPUInfo = nil;
    mach_msg_type_number_t _numCPUInfo, _numPrevCPUInfo = 0;
    unsigned _numCPUs;
    NSLock *_cpuUsageLock;
     
    int _mib[2U] = { CTL_HW, HW_NCPU };
    size_t _sizeOfNumCPUs = sizeof(_numCPUs);
    int _status = sysctl(_mib, 2U, &_numCPUs, &_sizeOfNumCPUs, NULL, 0U);
    if (_status)
        _numCPUs = 1;
     
    _cpuUsageLock = [[NSLock alloc] init];
     
    natural_t _numCPUsU = 0U;
    kern_return_t err = host_processor_info(mach_host_self(), PROCESSOR_CPU_LOAD_INFO, &_numCPUsU, &_cpuInfo, &_numCPUInfo);
    if (err == KERN_SUCCESS) {
        [_cpuUsageLock lock];
         
        NSMutableArray *cpus = [NSMutableArray new];
        for (unsigned i = 0U; i < _numCPUs; ++i) {
            Float32 _inUse, _total;
            if (_prevCPUInfo) {
                _inUse = (
                          (_cpuInfo[(CPU_STATE_MAX * i) + CPU_STATE_USER]   - _prevCPUInfo[(CPU_STATE_MAX * i) + CPU_STATE_USER])
                          + (_cpuInfo[(CPU_STATE_MAX * i) + CPU_STATE_SYSTEM] - _prevCPUInfo[(CPU_STATE_MAX * i) + CPU_STATE_SYSTEM])
                          + (_cpuInfo[(CPU_STATE_MAX * i) + CPU_STATE_NICE]   - _prevCPUInfo[(CPU_STATE_MAX * i) + CPU_STATE_NICE])
                          );
                _total = _inUse + (_cpuInfo[(CPU_STATE_MAX * i) + CPU_STATE_IDLE] - _prevCPUInfo[(CPU_STATE_MAX * i) + CPU_STATE_IDLE]);
            } else {
                _inUse = _cpuInfo[(CPU_STATE_MAX * i) + CPU_STATE_USER] + _cpuInfo[(CPU_STATE_MAX * i) + CPU_STATE_SYSTEM] + _cpuInfo[(CPU_STATE_MAX * i) + CPU_STATE_NICE];
                _total = _inUse + _cpuInfo[(CPU_STATE_MAX * i) + CPU_STATE_IDLE];
            }
            [cpus addObject:@(_inUse / _total)];
        }
         
        [_cpuUsageLock unlock];
        if (_prevCPUInfo) {
            size_t prevCpuInfoSize = sizeof(integer_t) * _numPrevCPUInfo;
            vm_deallocate(mach_task_self(), (vm_address_t)_prevCPUInfo, prevCpuInfoSize);
        }
        return cpus;
    } else {
        return nil;
    }
}

五、Disk磁盘空间

5.1、获取磁盘总空间

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- (int64_t)getTotalDiskSpace {
    NSError *error = nil;
    NSDictionary *attrs = [[NSFileManager defaultManager] attributesOfFileSystemForPath:NSHomeDirectory() error:&error];
    if (error) return -1;
    int64_t space =  [[attrs objectForKey:NSFileSystemSize] longLongValue];
    if (space < 0) space = -1;
    return space;
}

5.2、获取未使用的磁盘空间

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- (int64_t)getFreeDiskSpace {
    NSError *error = nil;
    NSDictionary *attrs = [[NSFileManager defaultManager] attributesOfFileSystemForPath:NSHomeDirectory() error:&error];
    if (error) return -1;
    int64_t space =  [[attrs objectForKey:NSFileSystemFreeSize] longLongValue];
    if (space < 0) space = -1;
    return space;
}

5.3、获取已使用的磁盘空间

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- (int64_t)getUsedDiskSpace {
    int64_t totalDisk = [self getTotalDiskSpace];
    int64_t freeDisk = [self getFreeDiskSpace];
    if (totalDisk < 0 || freeDisk < 0) return -1;
    int64_t usedDisk = totalDisk - freeDisk;
    if (usedDisk < 0) usedDisk = -1;
    return usedDisk;
}

六、Memory内存相关数据

6.1、系统总内存空间

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- (int64_t)getTotalMemory {
    int64_t totalMemory = [[NSProcessInfo processInfo] physicalMemory];
    if (totalMemory < -1) totalMemory = -1;
    return totalMemory;
}

6.2、活跃的内存,正在使用或者很短时间内被使用过

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- (int64_t)getActiveMemory {
    mach_port_t host_port = mach_host_self();
    mach_msg_type_number_t host_size = sizeof(vm_statistics_data_t) / sizeof(integer_t);
    vm_size_t page_size;
    vm_statistics_data_t vm_stat;
    kern_return_t kern;
    5
    kern = host_page_size(host_port, &page_size);
    if (kern != KERN_SUCCESS) return -1;
    kern = host_statistics(host_port, HOST_VM_INFO, (host_info_t)&vm_stat, &host_size);
    if (kern != KERN_SUCCESS) return -1;
    return vm_stat.active_count * page_size;
}

6.3、最近使用过,但是目前处于不活跃状态的内存

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- (int64_t)getInActiveMemory {
    mach_port_t host_port = mach_host_self();
    mach_msg_type_number_t host_size = sizeof(vm_statistics_data_t) / sizeof(integer_t);
    vm_size_t page_size;
    vm_statistics_data_t vm_stat;
    kern_return_t kern;
    5
    kern = host_page_size(host_port, &page_size);
    if (kern != KERN_SUCCESS) return -1;
    kern = host_statistics(host_port, HOST_VM_INFO, (host_info_t)&vm_stat, &host_size);
    if (kern != KERN_SUCCESS) return -1;
    return vm_stat.inactive_count * page_size;
}

6.4、空闲的内存空间

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- (int64_t)getFreeMemory {
    mach_port_t host_port = mach_host_self();
    mach_msg_type_number_t host_size = sizeof(vm_statistics_data_t) / sizeof(integer_t);
    vm_size_t page_size;
    vm_statistics_data_t vm_stat;
    kern_return_t kern;
    5
    kern = host_page_size(host_port, &page_size);
    if (kern != KERN_SUCCESS) return -1;
    kern = host_statistics(host_port, HOST_VM_INFO, (host_info_t)&vm_stat, &host_size);
    if (kern != KERN_SUCCESS) return -1;
    return vm_stat.free_count * page_size;
}

6.5、已使用的内存空间

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- (int64_t)getUsedMemory {
    mach_port_t host_port = mach_host_self();
    mach_msg_type_number_t host_size = sizeof(vm_statistics_data_t) / sizeof(integer_t);
    vm_size_t page_size;
    vm_statistics_data_t vm_stat;
    kern_return_t kern;
    5
    kern = host_page_size(host_port, &page_size);
    if (kern != KERN_SUCCESS) return -1;
    kern = host_statistics(host_port, HOST_VM_INFO, (host_info_t)&vm_stat, &host_size);
    if (kern != KERN_SUCCESS) return -1;
    return page_size * (vm_stat.active_count + vm_stat.inactive_count + vm_stat.wire_count);
}

6.6、用来存放内核和数据结构的内存,framework、用户级别的应用无法分配

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- (int64_t)getWiredMemory {
    mach_port_t host_port = mach_host_self();
    mach_msg_type_number_t host_size = sizeof(vm_statistics_data_t) / sizeof(integer_t);
    vm_size_t page_size;
    vm_statistics_data_t vm_stat;
    kern_return_t kern;
    5
    kern = host_page_size(host_port, &page_size);
    if (kern != KERN_SUCCESS) return -1;
    kern = host_statistics(host_port, HOST_VM_INFO, (host_info_t)&vm_stat, &host_size);
    if (kern != KERN_SUCCESS) return -1;
    return vm_stat.wire_count * page_size;
}

6.7、可释放的内存空间：内存吃紧自动释放，针对大对象存放所需的大块内存空间

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- (int64_t)getPurgableMemory {
    mach_port_t host_port = mach_host_self();
    mach_msg_type_number_t host_size = sizeof(vm_statistics_data_t) / sizeof(integer_t);
    vm_size_t page_size;
    vm_statistics_data_t vm_stat;
    kern_return_t kern;
    5
    kern = host_page_size(host_port, &page_size);
    if (kern != KERN_SUCCESS) return -1;
    kern = host_statistics(host_port, HOST_VM_INFO, (host_info_t)&vm_stat, &host_size);
    if (kern != KERN_SUCCESS) return -1;
    return vm_stat.purgeable_count * page_size;
}