iOS 如何获取设备的各种信息
一、目录结构:
获取屏幕宽度与高度
获取设备版本号
获取iPhone名称
获取app版本号
获取电池电量
获取当前系统名称
获取当前系统版本号
获取通用的唯一识别码UUID
获取当前设备IP
获取总内存大小
获取当前可用内存
获取精准电池电量
获取电池当前的状态（共有4种状态）
获取设备当前的语言
获取device_model
获取mac 地址
获取IP地址
获取设备上次重启的时间
获取广告位标识符
获取CPU总数目
获取已使用的CPU比例
获取每个cpu的使用比例
获取磁盘总空间
获取未使用的磁盘空间
获取已使用的磁盘空间
获取系统总内存空间
获取活跃的内存,正在使用或者很短时间内被使用过
获取最近使用过,但是目前处于不活跃状态的内存
获取空闲的内存空间
获取已使用的内存空间
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
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
二、具体内容
1. 获取屏幕宽度与高度
// 屏幕宽度
+ (CGFloat)getDeviceScreenWidth {
return [UIScreen mainScreen].bounds.size.width;
}
// 屏幕高度
+ (CGFloat)getDeviceScreenHeight {
return [UIScreen mainScreen].bounds.size.height;
}
[UIScreen mainScreen].bounds.size.width用的很普遍，一般来说定义成宏更好，然后根据屏幕宽高进行尺寸的适配。
2. 获取设备版本号
/// 获取设备官方名称
+ (NSString *)getDeviceName {
// 设备型号官网地址 https://www.theiphonewiki.com/wiki/Models
struct utsname systemInfo;
uname(&systemInfo);
NSString *deviceString = [NSString stringWithCString:systemInfo.machine encoding:NSUTF8StringEncoding];
//模拟器
if ([deviceString isEqualToString:@"i386"]) return @"Simulator";
if ([deviceString isEqualToString:@"x86_64"]) return @"Simulator";
//iPhone
if ([deviceString isEqualToString:@"iPhone1,1"]) return @"iPhone_2G";
if ([deviceString isEqualToString:@"iPhone1,2"]) return @"iPhone_3G";
if ([deviceString isEqualToString:@"iPhone2,1"]) return @"iPhone_3GS";
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";
if ([deviceString isEqualToString:@"iPhone5,3"]) return @"iPhone_5c";
if ([deviceString isEqualToString:@"iPhone5,4"]) return @"iPhone_5c";
if ([deviceString isEqualToString:@"iPhone6,1"]) return @"iPhone_5s";
if ([deviceString isEqualToString:@"iPhone6,2"]) return @"iPhone_5s";
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";
if ([deviceString isEqualToString:@"iPhone9,1"]) return @"iPhone_7";
if ([deviceString isEqualToString:@"iPhone9,2"]) return @"iPhone_7_Plus";
if ([deviceString isEqualToString:@"iPhone9,3"]) return @"iPhone_7";
if ([deviceString isEqualToString:@"iPhone9,4"]) return @"iPhone_7_Plus";
if ([deviceString isEqualToString:@"iPhone10,1"]) return @"iPhone_8";
if ([deviceString isEqualToString:@"iPhone10,2"]) return @"iPhone_8_Plus";
if ([deviceString isEqualToString:@"iPhone10,3"]) return @"iPhone_X";
if ([deviceString isEqualToString:@"iPhone10,4"]) return @"iPhone_8";
if ([deviceString isEqualToString:@"iPhone10,5"]) return @"iPhone_8_Plus";
if ([deviceString isEqualToString:@"iPhone10,6"]) return @"iPhone_X";
if ([deviceString isEqualToString:@"iPhone11,2"]) return @"iPhone_XS";
if ([deviceString isEqualToString:@"iPhone11,4"]) return @"iPhone_XS_Max";
if ([deviceString isEqualToString:@"iPhone11,6"]) return @"iPhone_XS_Max";
if ([deviceString isEqualToString:@"iPhone11,8"]) return @"iPhone_XR";
if ([deviceString isEqualToString:@"iPhone12,1"]) return @"iPhone_11";
if ([deviceString isEqualToString:@"iPhone12,3"]) return @"iPhone_11Pro";
if ([deviceString isEqualToString:@"iPhone12,5"]) return @"iPhone_11Pro_Max";
if ([deviceString isEqualToString:@"iPhone12,8"]) return @"iPhone_SE2";
if ([deviceString isEqualToString:@"iPhone13,1"]) return @"iPhone_12_mini";
if ([deviceString isEqualToString:@"iPhone13,2"]) return @"iPhone_12";
if ([deviceString isEqualToString:@"iPhone13,3"]) return @"iPhone_12Pro";
if ([deviceString isEqualToString:@"iPhone13,4"]) return @"iPhone_12Pro_Max";
if ([deviceString isEqualToString:@"iPhone14,4"]) return @"iPhone_13_mini";
if ([deviceString isEqualToString:@"iPhone14,5"]) return @"iPhone_13";
if ([deviceString isEqualToString:@"iPhone14,2"]) return @"iPhone_13Pro";
if ([deviceString isEqualToString:@"iPhone14,3"]) return @"iPhone_13Pro_Max";
if ([deviceString isEqualToString:@"iPhone14,6"]) return @"iPhone_SE3";
if ([deviceString isEqualToString:@"iPhone14,7"]) return @"iPhone_14";
if ([deviceString isEqualToString:@"iPhone14,8"]) return @"iPhone_14_Plus";
if ([deviceString isEqualToString:@"iPhone15,2"]) return @"iPhone_14Pro";
if ([deviceString isEqualToString:@"iPhone15,3"]) return @"iPhone_14Pro_Max";
//iPad
if ([deviceString isEqualToString:@"iPad1,1"]) return @"iPad";
if ([deviceString isEqualToString:@"iPad2,1"]) return @"iPad_2nd";
if ([deviceString isEqualToString:@"iPad2,2"]) return @"iPad_2nd";
if ([deviceString isEqualToString:@"iPad2,3"]) return @"iPad_2nd";
if ([deviceString isEqualToString:@"iPad2,4"]) return @"iPad_2nd";
if ([deviceString isEqualToString:@"iPad2,5"]) return @"iPad_mini";
if ([deviceString isEqualToString:@"iPad2,6"]) return @"iPad_mini";
if ([deviceString isEqualToString:@"iPad2,7"]) return @"iPad_mini";
if ([deviceString isEqualToString:@"iPad3,1"]) return @"iPad_3rd";
if ([deviceString isEqualToString:@"iPad3,2"]) return @"iPad_3rd";
if ([deviceString isEqualToString:@"iPad3,3"]) return @"iPad_3rd";
if ([deviceString isEqualToString:@"iPad3,4"]) return @"iPad_4th";
if ([deviceString isEqualToString:@"iPad3,5"]) return @"iPad_4th";
if ([deviceString isEqualToString:@"iPad3,6"]) return @"iPad_4th";
if ([deviceString isEqualToString:@"iPad4,1"]) return @"iPadAir";
if ([deviceString isEqualToString:@"iPad4,2"]) return @"iPadAir";
if ([deviceString isEqualToString:@"iPad4,3"]) return @"iPadAir";
if ([deviceString isEqualToString:@"iPad4,4"]) return @"iPad_mini_2nd";
if ([deviceString isEqualToString:@"iPad4,5"]) return @"iPad_mini_2nd";
if ([deviceString isEqualToString:@"iPad4,6"]) return @"iPad_mini_2nd";
if ([deviceString isEqualToString:@"iPad4,7"]) return @"iPad_mini_3rd";
if ([deviceString isEqualToString:@"iPad4,8"]) return @"iPad_mini_3rd";
if ([deviceString isEqualToString:@"iPad4,9"]) return @"iPad_mini_3rd";
if ([deviceString isEqualToString:@"iPad5,1"]) return @"iPad_mini_4th";
if ([deviceString isEqualToString:@"iPad5,2"]) return @"iPad_mini_4th";
if ([deviceString isEqualToString:@"iPad5,3"]) return @"iPadAir_2nd";
if ([deviceString isEqualToString:@"iPad5,4"]) return @"iPadAir_2nd";
if ([deviceString isEqualToString:@"iPad6,3"]) return @"iPadPro_9.7";
if ([deviceString isEqualToString:@"iPad6,4"]) return @"iPadPro_9.7";
if ([deviceString isEqualToString:@"iPad6,7"]) return @"iPadPro_12.9";
if ([deviceString isEqualToString:@"iPad6,8"]) return @"iPadPro_12.9";
if ([deviceString isEqualToString:@"iPad6,11"]) return @"iPad_5th";
if ([deviceString isEqualToString:@"iPad6,12"]) return @"iPad_5th";
if ([deviceString isEqualToString:@"iPad7,1"]) return @"iPadPro_12.9_2nd";
if ([deviceString isEqualToString:@"iPad7,2"]) return @"iPadPro_12.9_2nd";
if ([deviceString isEqualToString:@"iPad7,3"]) return @"iPadPro_10.5";
if ([deviceString isEqualToString:@"iPad7,4"]) return @"iPadPro_10.5";
if ([deviceString isEqualToString:@"iPad7,5"]) return @"iPad_6th";
if ([deviceString isEqualToString:@"iPad7,6"]) return @"iPad_6th";
if ([deviceString isEqualToString:@"iPad7,11"]) return @"iPad_7th";
if ([deviceString isEqualToString:@"iPad7,12"]) return @"iPad_7th";
if ([deviceString isEqualToString:@"iPad8,1"]) return @"iPadPro_11";
if ([deviceString isEqualToString:@"iPad8,2"]) return @"iPadPro_11";
if ([deviceString isEqualToString:@"iPad8,3"]) return @"iPadPro_11";
if ([deviceString isEqualToString:@"iPad8,4"]) return @"iPadPro_11";
if ([deviceString isEqualToString:@"iPad8,5"]) return @"iPadPro_12.9_3rd";
if ([deviceString isEqualToString:@"iPad8,6"]) return @"iPadPro_12.9_3rd";
if ([deviceString isEqualToString:@"iPad8,7"]) return @"iPadPro_12.9_3rd";
if ([deviceString isEqualToString:@"iPad8,8"]) return @"iPadPro_12.9_3rd";
if ([deviceString isEqualToString:@"iPad8,9"]) return @"iPadPro_11_2rd";
if ([deviceString isEqualToString:@"iPad8,10"]) return @"iPadPro_11_2rd";
if ([deviceString isEqualToString:@"iPad8,11"]) return @"iPadPro_12.9_4rd";
if ([deviceString isEqualToString:@"iPad8,12"]) return @"iPadPro_12.9_4rd";
if ([deviceString isEqualToString:@"iPad11,1"]) return @"iPad_mini_5th";
if ([deviceString isEqualToString:@"iPad11,2"]) return @"iPad_mini_5th";
if ([deviceString isEqualToString:@"iPad11,3"]) return @"iPadAir_3rd";
if ([deviceString isEqualToString:@"iPad11,4"]) return @"iPadAir_3rd";
if ([deviceString isEqualToString:@"iPad11,6"]) return @"iPad_8th";
if ([deviceString isEqualToString:@"iPad11,7"]) return @"iPad_8th";
if ([deviceString isEqualToString:@"iPad13,1"]) return @"iPadAir_4rd";
if ([deviceString isEqualToString:@"iPad13,2"]) return @"iPadAir_4rd";
if ([deviceString isEqualToString:@"iPad13,4"]) return @"iPadPro_11-inch_3rd";
if ([deviceString isEqualToString:@"iPad13,5"]) return @"iPadPro_11-inch_3rd";
if ([deviceString isEqualToString:@"iPad13,6"]) return @"iPadPro_11-inch_3rd";
if ([deviceString isEqualToString:@"iPad13,7"]) return @"iPadPro_11-inch_3rd";
if ([deviceString isEqualToString:@"iPad13,8"]) return @"iPadPro_12.9-inch_5th";
if ([deviceString isEqualToString:@"iPad13,9"]) return @"iPadPro_12.9-inch_5th";
if ([deviceString isEqualToString:@"iPad13,10"]) return @"iPadPro_12.9-inch_5th";
if ([deviceString isEqualToString:@"iPad13,11"]) return @"iPadPro_12.9-inch_5th";
if ([deviceString isEqualToString:@"iPad14,1"]) return @"iPad_mini_6th";
if ([deviceString isEqualToString:@"iPad14,2"]) return @"iPad_mini_6th";
//iPod touch
if ([deviceString isEqualToString:@"iPod1,1"]) return @"iPod_touch";
if ([deviceString isEqualToString:@"iPod2,1"]) return @"iPod_touch_2nd";
if ([deviceString isEqualToString:@"iPod3,1"]) return @"iPod_touch_3rd";
if ([deviceString isEqualToString:@"iPod4,1"]) return @"iPod_touch_4th";
if ([deviceString isEqualToString:@"iPod5,1"]) return @"iPod_touch_5th";
if ([deviceString isEqualToString:@"iPod7,1"]) return @"iPod_touch_6th";
if ([deviceString isEqualToString:@"iPod9,1"]) return @"iPod_touch_7th";
//Apple Watch
if ([deviceString isEqualToString:@"Watch1,1"]) return @"Apple_Watch_1st";
if ([deviceString isEqualToString:@"Watch1,2"]) return @"Apple_Watch_1st";
if ([deviceString isEqualToString:@"Watch2,6"]) return @"Apple_Watch_Series_1";
if ([deviceString isEqualToString:@"Watch2,7"]) return @"Apple_Watch_Series_1";
if ([deviceString isEqualToString:@"Watch2,3"]) return @"Apple_Watch_Series_2";
if ([deviceString isEqualToString:@"Watch2,4"]) return @"Apple_Watch_Series_2";
if ([deviceString isEqualToString:@"Watch3,1"]) return @"Apple_Watch_Series_3";
if ([deviceString isEqualToString:@"Watch3,2"]) return @"Apple_Watch_Series_3";
if ([deviceString isEqualToString:@"Watch3,3"]) return @"Apple_Watch_Series_3";
if ([deviceString isEqualToString:@"Watch3,4"]) return @"Apple_Watch_Series_3";
if ([deviceString isEqualToString:@"Watch4,1"]) return @"Apple_Watch_Series_4";
if ([deviceString isEqualToString:@"Watch4,2"]) return @"Apple_Watch_Series_4";
if ([deviceString isEqualToString:@"Watch4,3"]) return @"Apple_Watch_Series_4";
if ([deviceString isEqualToString:@"Watch4,4"]) return @"Apple_Watch_Series_4";
if ([deviceString isEqualToString:@"Watch5,1"]) return @"Apple_Watch_Series_5";
if ([deviceString isEqualToString:@"Watch5,2"]) return @"Apple_Watch_Series_5";
if ([deviceString isEqualToString:@"Watch5,3"]) return @"Apple_Watch_Series_5";
if ([deviceString isEqualToString:@"Watch5,4"]) return @"Apple_Watch_Series_5";
if ([deviceString isEqualToString:@"Watch5,9"]) return @"Apple_Watch_SE";
if ([deviceString isEqualToString:@"Watch5,10"]) return @"Apple_Watch_SE";
if ([deviceString isEqualToString:@"Watch5,11"]) return @"Apple_Watch_SE";
if ([deviceString isEqualToString:@"Watch5,12"]) return @"Apple_Watch_SE";
if ([deviceString isEqualToString:@"Watch6,1"]) return @"Apple_Watch_Series_6";
if ([deviceString isEqualToString:@"Watch6,2"]) return @"Apple_Watch_Series_6";
if ([deviceString isEqualToString:@"Watch6,3"]) return @"Apple_Watch_Series_6";
if ([deviceString isEqualToString:@"Watch6,4"]) return @"Apple_Watch_Series_6";
if ([deviceString isEqualToString:@"Watch6,6"]) return @"Apple_Watch_Series_7";
if ([deviceString isEqualToString:@"Watch6,7"]) return @"Apple_Watch_Series_7";
if ([deviceString isEqualToString:@"Watch6,8"]) return @"Apple_Watch_Series_7";
if ([deviceString isEqualToString:@"Watch6,9"]) return @"Apple_Watch_Series_7";
if ([deviceString isEqualToString:@"Watch6,10"]) return @"Apple_Watch_SE2";
if ([deviceString isEqualToString:@"Watch6,11"]) return @"Apple_Watch_SE2";
if ([deviceString isEqualToString:@"Watch6,12"]) return @"Apple_Watch_SE2";
if ([deviceString isEqualToString:@"Watch6,13"]) return @"Apple_Watch_SE2";
if ([deviceString isEqualToString:@"Watch6,14"]) return @"Apple_Watch_Series_8";
if ([deviceString isEqualToString:@"Watch6,15"]) return @"Apple_Watch_Series_8";
if ([deviceString isEqualToString:@"Watch6,16"]) return @"Apple_Watch_Series_8";
if ([deviceString isEqualToString:@"Watch6,17"]) return @"Apple_Watch_Series_8";
if ([deviceString isEqualToString:@"Watch6,18"]) return @"Apple_Watch_Ultra";
//Apple TV
if ([deviceString isEqualToString:@"AppleTV2,1"]) return @"AppleTV_2nd";
if ([deviceString isEqualToString:@"AppleTV3,1"]) return @"AppleTV_3rd";
if ([deviceString isEqualToString:@"AppleTV3,2"]) return @"AppleTV_3rd";
if ([deviceString isEqualToString:@"AppleTV5,3"]) return @"AppleTV_4th";
if ([deviceString isEqualToString:@"AppleTV6,2"]) return @"AppleTV_4K";
if ([deviceString isEqualToString:@"AppleTV11,1"]) return @"AppleTV_4K_2nd";
//AirPods
if ([deviceString isEqualToString:@"AirPods1,1"]) return @"AirPods_1st";
if ([deviceString isEqualToString:@"AirPods1,2"]) return @"AirPods_2nd";
if ([deviceString isEqualToString:@"AirPods2,1"]) return @"AirPods_2nd";
if ([deviceString isEqualToString:@"AirPods1,3"]) return @"AirPods_3nd";
if ([deviceString isEqualToString:@"Audio2,1"]) return @"AirPods_3nd";
if ([deviceString isEqualToString:@"AirPods2,2"]) return @"AirPodsPro";
if ([deviceString isEqualToString:@"AirPodsPro1,1"]) return @"AirPodsPro";
if ([deviceString isEqualToString:@"iProd8,1"]) return @"AirPodsPro";
if ([deviceString isEqualToString:@"AirPodsPro1,2"]) return @"AirPodsPro_2nd";
if ([deviceString isEqualToString:@"AirPodsMax1,1"]) return @"AirPods_Max";
if ([deviceString isEqualToString:@"iProd8,6"]) return @"AirPods_Max";
//HomePod
if ([deviceString isEqualToString:@"AudioAccessory1,1"]) return @"HomePod";
if ([deviceString isEqualToString:@"AudioAccessory1,2"]) return @"HomePod";
if ([deviceString isEqualToString:@"AudioAccessory5,1"]) return @"HomePod_mini";
//AirTag
if ([deviceString isEqualToString:@"AirTag1,1"]) return @"AirTag";
// Mac
// iMac
if ([deviceString isEqualToString:@"iMac21,1"]) return @"iMac_24inch";
if ([deviceString isEqualToString:@"iMac21,2"]) return @"iMac_24inch";
// Mac mini
if ([deviceString isEqualToString:@"Macmini9,1"]) return @"Mac_mini";
// MacBook Air
if ([deviceString isEqualToString:@"MacBookAir10,1"]) return @"MacBook_Air";
// MacBook Pro
if ([deviceString isEqualToString:@"MacBookPro17,1"]) return @"MacBook_Pro_13inch";
if ([deviceString isEqualToString:@"MacBookPro18,3"]) return @"MacBook_Pro_14inch";
if ([deviceString isEqualToString:@"MacBookPro18,4"]) return @"MacBook_Pro_14inch";
if ([deviceString isEqualToString:@"MacBookPro18,1"]) return @"MacBook_Pro_16inch";
if ([deviceString isEqualToString:@"MacBookPro18,2"]) return @"MacBook_Pro_16inch";
// MacBook Studio
// if ([deviceString isEqualToString:@"MacBookPro18,3"]) return @"MacStudio_M1_Max";
// if ([deviceString isEqualToString:@"MacBookPro18,3"]) return @"MacStudio_M1_Ultra";
return deviceString;
}
3. 获取iPhone名称
// 获取iPhone名称
+ (NSString *)getiPhoneName {
return [UIDevice currentDevice].name;
}
4. 获取app版本号
// 获取app版本号
+ (NSString *)getAPPVerion {
return [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleShortVersionString"];
}
5. 获取电池电量
// 获取电池电量
+ (CGFloat)getBatteryLevel {
return [UIDevice currentDevice].batteryLevel;
}
这个方法获取电池电量不是很精确，下边会介绍一个获取精确电池电量的。
6. 获取当前系统名称
// 当前系统名称
+ (NSString *)getSystemName {
return [UIDevice currentDevice].systemName;
}
7. 获取当前系统版本号
// 当前系统版本号
+ (NSString *)getSystemVersion {
return [UIDevice currentDevice].systemVersion;
}
8. 获取通用的唯一识别码UUID
// 通用唯一识别码UUID
+ (NSString *)getUUID {
return [[UIDevice currentDevice] identifierForVendor].UUIDString;
}
9. 获取当前设备IP
// 获取当前设备IP
+ (NSString *)getDeviceIPAdress {
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. 获取总内存大小
// 获取总内存大小
+ (long long)getTotalMemorySize {
return [NSProcessInfo processInfo].physicalMemory;
}
11. 获取当前可用内存
// 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));
}
12. 获取精准电池电量
// 获取精准电池电量
+ (CGFloat)getCurrentBatteryLevel {
UIApplication *app = [UIApplication sharedApplication];
if (app.applicationState == UIApplicationStateActive||app.applicationState==UIApplicationStateInactive) {
Ivar ivar= class_getInstanceVariable([app class],"_statusBar");
id status = object_getIvar(app, ivar);
for (id aview in [status subviews]) {
int batteryLevel = 0;
for (id bview in [aview subviews]) {
if ([NSStringFromClass([bview class]) caseInsensitiveCompare:@"UIStatusBarBatteryItemView"] == NSOrderedSame&&[[[UIDevice currentDevice] systemVersion] floatValue] >=6.0) {
Ivar ivar= class_getInstanceVariable([bview class],"_capacity");
if(ivar) {
batteryLevel = ((int (*)(id, Ivar))object_getIvar)(bview, ivar);
if (batteryLevel > 0 && batteryLevel <= 100) {
return batteryLevel;
} else {
return 0;
}
}
}
}
}
}
return 0;
}
上面这个方法是通过runtime获取电池电量控件类私有变量的值，较为精确。
13. 获取电池当前的状态（共有4种状态）
// 获取电池当前的状态，共有4种状态
+ (NSString *) getBatteryState {
UIDevice *device = [UIDevice currentDevice];
if (device.batteryState == UIDeviceBatteryStateUnknown) {
return @"UnKnow";
} else if (device.batteryState == UIDeviceBatteryStateUnplugged){
return @"Unplugged";
} else if (device.batteryState == UIDeviceBatteryStateCharging){
return @"Charging";
} else if (device.batteryState == UIDeviceBatteryStateFull){
return @"Full";
}
return nil;
}
14. 获取设备当前的语言
// 获取当前语言
+ (NSString *)getDeviceLanguage {
NSArray *languageArray = [NSLocale preferredLanguages];
return [languageArray objectAtIndex:0];
}
15. 获取device_model
// 获取device_model
+ (NSString *)getDeviceModel {
struct utsname systemInfo;
uname(&systemInfo);
NSString *device_model = [NSString stringWithCString:systemInfo.machine encoding:NSUTF8StringEncoding];
return device_model;
}
16. 获取mac 地址
// 获取mac 地址
+ (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:@"%02x%02x%02x%02x%02x%02x", *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), *(ptr+5)];
free(buf);
return [outstring uppercaseString];
}
17. 获取IP地址
// 获取IP地址
+ (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;
}
18. 获取设备上次重启的时间
// 获取设备上次重启的时间
+ (NSString *)getDeviceModel {
NSTimeInterval time = [[NSProcessInfo processInfo] systemUptime];
NSDate *lastRestartDate = [[NSDate alloc] initWithTimeIntervalSinceNow:(0 - time)];
//用于格式化NSDate对象
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
//设置格式：zzz表示时区
[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss zzz"];
//NSDate转NSString
NSString *currentDateString = [dateFormatter stringFromDate:currentDate];
return currentDateString;
}
19. 获取广告位标识符
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，是戳戳有余了
// 获取广告位标识符
+ (NSString *)getIDFA {
NSString *idfa = [[[ASIdentifierManager sharedManager] advertisingIdentifier] UUIDString];
return idfa;
}
iOS14更新了用户隐私权限，需要用户允许跟踪后才可获取，：
#import
#import
/// IDFA
+ (void)getIDFAComplete:(void(^)(NSString *idfa))complete{
if (@available(iOS 14, *)) {
[ATTrackingManager requestTrackingAuthorizationWithCompletionHandler:^(ATTrackingManagerAuthorizationStatus status) {
if (status == ATTrackingManagerAuthorizationStatusAuthorized) {
NSString * devideIDFA = [[ASIdentifierManager sharedManager] advertisingIdentifier].UUIDString;
if(devideIDFA){
if (complete) {
complete(devideIDFA);
}
return;
}
}
}];
} else {
// 使用原方式访问 IDFA
if ([[ASIdentifierManager sharedManager] isAdvertisingTrackingEnabled]) {
NSString *devideIDFA = [[[ASIdentifierManager sharedManager] advertisingIdentifier] UUIDString];
if(devideIDFA){
if (complete) {
complete(devideIDFA);
}
return;
}
}
}
}
20. 获取CPU总数目
// 获取CPU总数目
+ (NSString *) getCPUCount {
return [NSProcessInfo processInfo].activeProcessorCount;
}
21. 获取已使用的CPU比例
// 获取已使用的CPU比例
+ (NSString *) getCPUUsage {
float cpu = 0;
NSArray *cpus = [self getPerCPUUsage];
if (cpus.count == 0) return -1;
for (NSNumber *n in cpus) {
cpu += n.floatValue;
}
NSString *stringFloat = [NSString stringWithFormat:@"%f",cpu];
return stringFloat;
}
22. 获取每个cpu的使用比例
// 获取每个cpu的使用比例
- (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;
}
}
23.获取磁盘总空间
// 获取磁盘总空间
- (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;
}
24. 获取未使用的磁盘空间
// 获取未使用的磁盘空间
- (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;
}
25. 获取已使用的磁盘空间
// 获取已使用的磁盘空间
- (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;
}
26. 获取系统总内存空间
// 获取系统总内存空间
- (int64_t)getTotalMemory {
int64_t totalMemory = [[NSProcessInfo processInfo] physicalMemory];
if (totalMemory < -1) totalMemory = -1;
return totalMemory;
}
27. 获取活跃的内存,正在使用或者很短时间内被使用过
// 获取活跃的内存,正在使用或者很短时间内被使用过
- (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;
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;
}
28. 获取最近使用过,但是目前处于不活跃状态的内存
// 获取最近使用过,但是目前处于不活跃状态的内存
- (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;
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;
}
29. 获取空闲的内存空间
// 获取空闲的内存空间
- (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;
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;
}
30. 获取已使用的内存空间
// 获取已使用的内存空间
- (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;
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);
}
31. 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
// 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
- (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;
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;
}
32. 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
// 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
- (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;
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;
}
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