From: http://www.jianshu.com/p/c3499d8e9a72
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。
1.获取电池电量(一般用百分数表示,大家自行处理就好)
-(CGFloat)getBatteryQuantity
{
return [[UIDevice currentDevice] batteryLevel];
}
2.获取电池状态(UIDeviceBatteryState为枚举类型)
-(UIDeviceBatteryState)getBatteryStauts
{
return [UIDevice currentDevice].batteryState;
}
3.获取总内存大小
-(long long)getTotalMemorySize
{
return [NSProcessInfo processInfo].physicalMemory;
}
4.获取当前可用内存
-(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));
}
5.获取已使用内存
- (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;
}
6.获取总磁盘容量
include <sys/mount.h>
-(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;
}
7.获取可用磁盘容量
-(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;
}
8.容量转换
-(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];
}
}
8.型号
#import <sys/sysctl.h>
+ (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;
}
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。
9.IP地址
#import <ifaddrs.h>和#import <arpa/inet.h>
- (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;
}
10.当前手机连接的WIFI名称(SSID)
需要#import <SystemConfiguration/CaptiveNetwork.h>
- (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;
}
11.当前手机系統版本
[[[UIDevice currentDevice] systemVersion] floatValue] ;
