iOS开发中，获取设备信息，用OC语言的比较多，在Swift开发中，可以用OC通过桥接的方式，实现获取设备信息。但是，既然是Swift开发，还是使用纯Swift语言看起来比较顺眼，下面话不多说，直接上代码。
Swift方法：
/// 屏幕宽度
func screenWidth() -> CGFloat {
return UIScreen.main.bounds.size.width
}
/// 屏幕高度
func screenHeight() -> CGFloat {
return UIScreen.main.bounds.size.height
}
/// 获取设备版本号
func deviceName() -> String {
var systemInfo = utsname()
uname(&systemInfo)
let machineMirror = Mirror(reflecting: systemInfo.machine)
let identifier = machineMirror.children.reduce("") { identifier, element in
guard let value = element.value as? Int8, value != 0 else { return identifier }
return identifier + String(UnicodeScalar(UInt8(value)))
}
switch identifier {
case "iPod5,1": return "iPod Touch 5"
case "iPod7,1": return "iPod Touch 6"
case "iPhone3,1", "iPhone3,2", "iPhone3,3": return "iPhone 4"
case "iPhone4,1": return "iPhone 4s"
case "iPhone5,1", "iPhone5,2": return "iPhone 5"
case "iPhone5,3", "iPhone5,4": return "iPhone 5c"
case "iPhone6,1", "iPhone6,2": return "iPhone 5s"
case "iPhone7,2": return "iPhone 6"
case "iPhone7,1": return "iPhone 6 Plus"
case "iPhone8,1": return "iPhone 6s"
case "iPhone8,2": return "iPhone 6s Plus"
case "iPhone9,1": return "iPhone 7 (CDMA)"
case "iPhone9,3": return "iPhone 7 (GSM)"
case "iPhone9,2": return "iPhone 7 Plus (CDMA)"
case "iPhone9,4": return "iPhone 7 Plus (GSM)"
case "iPad2,1", "iPad2,2", "iPad2,3", "iPad2,4":return "iPad 2"
case "iPad3,1", "iPad3,2", "iPad3,3": return "iPad 3"
case "iPad3,4", "iPad3,5", "iPad3,6": return "iPad 4"
case "iPad4,1", "iPad4,2", "iPad4,3": return "iPad Air"
case "iPad5,3", "iPad5,4": return "iPad Air 2"
case "iPad2,5", "iPad2,6", "iPad2,7": return "iPad Mini"
case "iPad4,4", "iPad4,5", "iPad4,6": return "iPad Mini 2"
case "iPad4,7", "iPad4,8", "iPad4,9": return "iPad Mini 3"
case "iPad5,1", "iPad5,2": return "iPad Mini 4"
case "iPad6,7", "iPad6,8": return "iPad Pro"
case "AppleTV5,3": return "Apple TV"
case "i386", "x86_64": return "Simulator"
default: return identifier
}
}
/// 获取iPhone名称
func iphoneName() -> String {
return UIDevice.current.name
}
/// 获取app版本号
func appVersion() -> String {
return Bundle.main.infoDictionary!["CFBundleShortVersionString"] as! String
}
/// 获取电池电量
func batteryLevel() -> CGFloat {
return CGFloat(UIDevice.current.batteryLevel)
}
/// 当前系统名称
func systemName() -> String {
return UIDevice.current.systemName
}
/// 当前系统版本号
func systemVersion() -> String {
return UIDevice.current.systemVersion
}
/// 通用唯一识别码UUID
func UUID() -> String {
return (UIDevice.current.identifierForVendor?.uuidString)!
}
/// 获取当前设备IP
func deviceIP() -> String? {
var addresses = [String]()
var ifaddr : UnsafeMutablePointer<ifaddrs>? = nil
if getifaddrs(&ifaddr) == 0 {
var ptr = ifaddr
while (ptr != nil) {
let flags = Int32(ptr!.pointee.ifa_flags)
var addr = ptr!.pointee.ifa_addr.pointee
if (flags & (IFF_UP|IFF_RUNNING|IFF_LOOPBACK)) == (IFF_UP|IFF_RUNNING) {
if addr.sa_family == UInt8(AF_INET) || addr.sa_family == UInt8(AF_INET6) {
var hostname = [CChar](repeating: 0, count: Int(NI_MAXHOST))
if (getnameinfo(&addr, socklen_t(addr.sa_len), &hostname, socklen_t(hostname.count),nil, socklen_t(0), NI_NUMERICHOST) == 0) {
if let address = String(validatingUTF8:hostname) {
addresses.append(address)
}
}
}
}
ptr = ptr!.pointee.ifa_next
}
freeifaddrs(ifaddr)
}
return addresses.first
}
/// 私有方法
private func blankof<T>(type:T.Type) -> T {
let ptr = UnsafeMutablePointer<T>.allocate(capacity: MemoryLayout<T>.size)
let val = ptr.pointee
ptr.deinitialize(count: 0)
return val
}
/// 获取总内存大小
func totalRAM() -> Int64 {
var fs = blankof(type: statfs.self)
if statfs("/var",&fs) >= 0{
return Int64(UInt64(fs.f_bsize) * fs.f_blocks)
}
return -1
}
/// 获取当前可用内存
func availableRAM() -> Int64 {
var fs = blankof(type: statfs.self)
if statfs("/var",&fs) >= 0{
return Int64(UInt64(fs.f_bsize) * fs.f_bavail)
}
return -1
}
/// 获取电池当前的状态，共有4种状态
func batteryState() -> String {
let device = UIDevice.current
if device.batteryState == UIDeviceBatteryState.unknown {
return "unknown"
} else if device.batteryState == UIDeviceBatteryState.unplugged {
return "unplugged"
} else if device.batteryState == UIDeviceBatteryState.charging {
return "charging"
} else if device.batteryState == UIDeviceBatteryState.full {
return "full"
}
return ""
}
/// 获取当前语言
func deviceLanguage() -> String {
return Locale.preferredLanguages[0]
}
顺带手，也把OC语言的代码一块贴在下面。
首先需要导入以下类库。
#import "sys/utsname.h"
#import <ifaddrs.h>
#import <arpa/inet.h>
#import <mach/mach.h>
#include <objc/runtime.h>
OC方法：
/// 屏幕宽度
+ (CGFloat)getDeviceScreenWidth {
return [UIScreen mainScreen].bounds.size.width;
}
/// 屏幕高度
+ (CGFloat)getDeviceScreenHeight {
return [UIScreen mainScreen].bounds.size.height;
}
/// 获取设备版本号
+ (NSString *)getDeviceName {
// 需要导入 "sys/utsname.h"
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";
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 ([deviceString isEqualToString:@"i386"]) return @"Simulator";
if ([deviceString isEqualToString:@"x86_64"]) return @"Simulator";
return deviceString;
}
/// 获取iPhone名称
+ (NSString *)getiPhoneName {
return [UIDevice currentDevice].name;
}
/// 获取app版本号
+ (NSString *)getAPPVerion {
return [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleShortVersionString"];
}
/// 获取电池电量
+ (CGFloat)getBatteryLevel {
return [UIDevice currentDevice].batteryLevel;
}
/// 当前系统名称
+ (NSString *)getSystemName {
return [UIDevice currentDevice].systemName;
}
/// 当前系统版本号
+ (NSString *)getSystemVersion {
return [UIDevice currentDevice].systemVersion;
}
/// 通用唯一识别码UUID
+ (NSString *)getUUID {
return [[UIDevice currentDevice] identifierForVendor].UUIDString;
}
// 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;
}
/// 获取总内存大小
+ (long long)getTotalMemorySize {
return [NSProcessInfo processInfo].physicalMemory;
}
/// 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));
}
/// 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;
}
/// 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;
}
/// 获取当前语言
+ (NSString *)getDeviceLanguage {
NSArray *languageArray = [NSLocale preferredLanguages];
return [languageArray objectAtIndex:0];
}
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