获取iOS设备信息(内存/电量/容量/型号/IP地址/当前WIFI名称)

   <p>最近工作上需要获取设备的一些信息,整理了一下,方便大家。</p>    <p>1.获取电池电量(一般用百分数表示,大家自行处理就好)</p>    <pre>  <code class="language-objectivec">-(CGFloat)getBatteryQuantity  {          return [[UIDevice currentDevice] batteryLevel];  }</code></pre>    <p>2.获取电池状态(UIDeviceBatteryState为枚举类型)</p>    <pre>  <code class="language-objectivec">-(UIDeviceBatteryState)getBatteryStauts  {          return [UIDevice currentDevice].batteryState;  }</code></pre>    <p>3.获取总内存大小</p>    <pre>  <code class="language-objectivec">-(long long)getTotalMemorySize  {          return [NSProcessInfo processInfo].physicalMemory;  }</code></pre>    <p>4.获取当前可用内存</p>    <pre>  <code class="language-objectivec">-(long long)getAvailableMemorySize  {      vm_statistics_data_t vmStats;      mach_msg_type_number_t infoCount = HOST_VM_INFO_COUNT;      kern_return_t kernReturn = host_statistics(mach_host_self(), HOST_VM_INFO, (host_info_t)&vmStats, &infoCount);      if (kernReturn != KERN_SUCCESS)      {          return NSNotFound;      }      return ((vm_page_size * vmStats.free_count + vm_page_size * vmStats.inactive_count));  }</code></pre>    <p>5.获取已使用内存</p>    <pre>  <code class="language-objectivec">- (double)getUsedMemory  {    task_basic_info_data_t taskInfo;    mach_msg_type_number_t infoCount = TASK_BASIC_INFO_COUNT;    kern_return_t kernReturn = task_info(mach_task_self(),                                          TASK_BASIC_INFO,                                          (task_info_t)&taskInfo,                                          &infoCount);      if (kernReturn != KERN_SUCCESS        ) {      return NSNotFound;    }      return taskInfo.resident_size;  }</code></pre>    <p>6.获取总磁盘容量</p>    <pre>  <code class="language-objectivec">include                 -(long long)getTotalDiskSize  {      struct statfs buf;      unsigned long long freeSpace = -1;      if (statfs("/var", &buf) >= 0)      {          freeSpace = (unsigned long long)(buf.f_bsize * buf.f_blocks);      }      return freeSpace;  }      </code></pre>    <p>7.获取可用磁盘容量</p>    <pre>  <code class="language-objectivec">-(long long)getAvailableDiskSize  {      struct statfs buf;      unsigned long long freeSpace = -1;      if (statfs("/var", &buf) >= 0)      {          freeSpace = (unsigned long long)(buf.f_bsize * buf.f_bavail);      }      return freeSpace;  }</code></pre>    <p>8.容量转换</p>    <pre>  <code class="language-objectivec">-(NSString *)fileSizeToString:(unsigned long long)fileSize  {      NSInteger KB = 1024;      NSInteger MB = KB*KB;      NSInteger GB = MB*KB;        if (fileSize < 10)  {          return @"0 B";      }else if (fileSize < KB)    {          return @"< 1 KB";      }else if (fileSize < MB)    {          return [NSString stringWithFormat:@"%.1f KB",((CGFloat)fileSize)/KB];      }else if (fileSize < GB)    {          return [NSString stringWithFormat:@"%.1f MB",((CGFloat)fileSize)/MB];      }else   {           return [NSString stringWithFormat:@"%.1f GB",((CGFloat)fileSize)/GB];      }  }</code></pre>    <p>8.型号</p>    <p>#import <sys sysctl="" h=""></sys></p>    <pre>  <code class="language-objectivec">+ (NSString *)getCurrentDeviceModel:(UIViewController *)controller  {      int mib[2];      size_t len;      char *machine;        mib[0] = CTL_HW;      mib[1] = HW_MACHINE;      sysctl(mib, 2, NULL, &len, NULL, 0);      machine = malloc(len);      sysctl(mib, 2, machine, &len, NULL, 0);        NSString *platform = [NSString stringWithCString:machine encoding:NSASCIIStringEncoding];      free(machine);        if ([platform isEqualToString:@"iPhone3,1"]) return @"iPhone 4 (A1332)";      if ([platform isEqualToString:@"iPhone3,2"]) return @"iPhone 4 (A1332)";      if ([platform isEqualToString:@"iPhone3,3"]) return @"iPhone 4 (A1349)";      if ([platform isEqualToString:@"iPhone4,1"]) return @"iPhone 4s (A1387/A1431)";      if ([platform isEqualToString:@"iPhone5,1"]) return @"iPhone 5 (A1428)";      if ([platform isEqualToString:@"iPhone5,2"]) return @"iPhone 5 (A1429/A1442)";      if ([platform isEqualToString:@"iPhone5,3"]) return @"iPhone 5c (A1456/A1532)";      if ([platform isEqualToString:@"iPhone5,4"]) return @"iPhone 5c (A1507/A1516/A1526/A1529)";      if ([platform isEqualToString:@"iPhone6,1"]) return @"iPhone 5s (A1453/A1533)";      if ([platform isEqualToString:@"iPhone6,2"]) return @"iPhone 5s (A1457/A1518/A1528/A1530)";      if ([platform isEqualToString:@"iPhone7,1"]) return @"iPhone 6 Plus (A1522/A1524)";      if ([platform isEqualToString:@"iPhone7,2"]) return @"iPhone 6 (A1549/A1586)";      if ([platform isEqualToString:@"iPhone8,1"]) return @"iPhone 6s";      if ([platform isEqualToString:@"iPhone8,2"]) return @"iPhone 6s Plus";      if ([platform isEqualToString:@"iPod1,1"])   return @"iPod Touch 1G (A1213)";      if ([platform isEqualToString:@"iPod2,1"])   return @"iPod Touch 2G (A1288)";      if ([platform isEqualToString:@"iPod3,1"])   return @"iPod Touch 3G (A1318)";      if ([platform isEqualToString:@"iPod4,1"])   return @"iPod Touch 4G (A1367)";      if ([platform isEqualToString:@"iPod5,1"])   return @"iPod Touch 5G (A1421/A1509)";        if ([platform isEqualToString:@"iPad1,1"])   return @"iPad 1G (A1219/A1337)";      if ([platform isEqualToString:@"iPad2,1"])   return @"iPad 2 (A1395)";      if ([platform isEqualToString:@"iPad2,2"])   return @"iPad 2 (A1396)";      if ([platform isEqualToString:@"iPad2,3"])   return @"iPad 2 (A1397)";      if ([platform isEqualToString:@"iPad2,4"])   return @"iPad 2 (A1395+New Chip)";      if ([platform isEqualToString:@"iPad2,5"])   return @"iPad Mini 1G (A1432)";      if ([platform isEqualToString:@"iPad2,6"])   return @"iPad Mini 1G (A1454)";      if ([platform isEqualToString:@"iPad2,7"])   return @"iPad Mini 1G (A1455)";        if ([platform isEqualToString:@"iPad3,1"])   return @"iPad 3 (A1416)";      if ([platform isEqualToString:@"iPad3,2"])   return @"iPad 3 (A1403)";      if ([platform isEqualToString:@"iPad3,3"])   return @"iPad 3 (A1430)";      if ([platform isEqualToString:@"iPad3,4"])   return @"iPad 4 (A1458)";      if ([platform isEqualToString:@"iPad3,5"])   return @"iPad 4 (A1459)";      if ([platform isEqualToString:@"iPad3,6"])   return @"iPad 4 (A1460)";        if ([platform isEqualToString:@"iPad4,1"])   return @"iPad Air (A1474)";      if ([platform isEqualToString:@"iPad4,2"])   return @"iPad Air (A1475)";      if ([platform isEqualToString:@"iPad4,3"])   return @"iPad Air (A1476)";      if ([platform isEqualToString:@"iPad4,4"])   return @"iPad Mini 2G (A1489)";      if ([platform isEqualToString:@"iPad4,5"])   return @"iPad Mini 2G (A1490)";      if ([platform isEqualToString:@"iPad4,6"])   return @"iPad Mini 2G (A1491)";        if ([platform isEqualToString:@"i386"])      return @"iPhone Simulator";      if ([platform isEqualToString:@"x86_64"])    return @"iPhone Simulator";      return platform;  }</code></pre>    <p>可以根据自己的需求增改。有人说也可以按照手机屏幕来判断，但5和5s/5c等手机屏幕相同尺寸则无法判断。。。我只做了iPhone的机型，所以iPad和iPod Touch的信息并没有更新到最新，也请朋友们补充。</p>    <p>9.IP地址</p>    <p>#import 和 #import</p>    <pre>  <code class="language-objectivec">- (NSString *)deviceIPAdress {      NSString *address = @"an error occurred when obtaining ip address";      struct ifaddrs *interfaces = NULL;      struct ifaddrs *temp_addr = NULL;      int success = 0;        success = getifaddrs(&interfaces);        if (success == 0) { // 0 表示获取成功            temp_addr = interfaces;          while (temp_addr != NULL) {              if( temp_addr->ifa_addr->sa_family == AF_INET) {                  // Check if interface is en0 which is the wifi connection on the iPhone                  if ([[NSString stringWithUTF8String:temp_addr->ifa_name] isEqualToString:@"en0"]) {                      // Get NSString from C String                      address = [NSString stringWithUTF8String:inet_ntoa(((struct sockaddr_in *)temp_addr->ifa_addr)->sin_addr)];                  }              }                temp_addr = temp_addr->ifa_next;          }      }        freeifaddrs(interfaces);      return address;  }</code></pre>    <p>10.当前手机连接的WIFI名称(SSID)</p>    <p>需要 #import</p>    <pre>  <code class="language-objectivec">- (NSString *)getWifiName  {      NSString *wifiName = nil;        CFArrayRef wifiInterfaces = CNCopySupportedInterfaces();      if (!wifiInterfaces) {          return nil;      }        NSArray *interfaces = (__bridge NSArray *)wifiInterfaces;        for (NSString *interfaceName in interfaces) {          CFDictionaryRef dictRef = CNCopyCurrentNetworkInfo((__bridge CFStringRef)(interfaceName));            if (dictRef) {              NSDictionary *networkInfo = (__bridge NSDictionary *)dictRef;                wifiName = [networkInfo objectForKey:(__bridge NSString *)kCNNetworkInfoKeySSID];                CFRelease(dictRef);          }      }        CFRelease(wifiInterfaces);      return wifiName;  }</code></pre>    <p> </p>    <p>来自：http://www.cocoachina.com/ios/20161130/18229.html</p>    <p> </p>