iOS 获取设备类型和系统信息

iOS获取设备型号、设备类型等信息

设备标识

关于设备标识，历史上盛行过很多英雄，比如UDID、Mac地址、OpenUDID等，然而他们都陆陆续续倒在了苹果的门下。苹果目前提供了2个方法供App获取设备标识：idfa和idfv

idfa：全称advertisingIdentifier，官方解释是广告标识，适用于广告推广，这个建议不要轻易使用，如果用了，则App里必须提供广告功能，否则很有可能会在AppStore审核时被拒。而且idfa是可以被用户关闭的（设置-》隐私），一旦被关闭，就获取不到了。

idfv：全称identifierForVendor，按照字面意思理解，相同的Vendor应该有相同的identifier。Vendor是根据app的bundleid的前两位来界定的，比如对于com.abc.app1和com.abc.app2这2个bundleid的app来说，他们就属于同一个vendor。idfv是一定可以获取到的。需要注意的一点是，当用户将某个vendor下的所有app都卸载掉时，idfv就会被重置，再次安装时，获取到的idfv会跟之前的不一样。所以我用的方案是：idfv+keychain。当然如果用户选择恢复出厂设置，那么还是会出现不一样，这种情况就没法处理了。

+(NSString *)identifier
{NSString *key = @"com.app.keychain.uuid";KeychainItemWrapper *keychainItem = [[KeychainItemWrapper alloc] initWithIdentifier:key accessGroup:nil];NSString *strUUID = [keychainItem objectForKey:(__bridge id)kSecValueData];if (strUUID.length <= 0) {strUUID = [[[UIDevice currentDevice] identifierForVendor] UUIDString];[keychainItem setObject:@"uuid" forKey:(__bridge id)kSecAttrAccount];[keychainItem setObject:strUUID forKey:(__bridge id)kSecValueData];}return strUUID;
}

手机别名

+(NSString *)phoneName
{return [[UIDevice currentDevice] name];
}

手机系统版本

/***  手机系统版本**  @return e.g. 8.0*/
+(NSString *)phoneVersion{return [[UIDevice currentDevice] systemVersion];
}

手机型号

这个方法只能获取到iPhone、iPad这种信息，无法获取到是iPhone 4、iPhpone5这种具体的型号。

/***  手机型号**  @return e.g. iPhone*/
+(NSString *)phoneModel{return [[UIDevice currentDevice] model];
}

设备版本

这个代码可以获取到具体的设备版本（已更新到iPhone 6s、iPhone 6s Plus），缺点是：采用的硬编码。具体的对应关系可以参考：https://www.theiphonewiki.com/wiki/Models

这个方法可以通过AppStore的审核，放心用吧。

/***  设备版本**  @return e.g. iPhone 5S*/
+ (NSString*)deviceVersion
{// 需要#import "sys/utsname.h"struct utsname systemInfo;uname(&systemInfo);NSString *deviceString = [NSString stringWithCString:systemInfo.machine encoding:NSUTF8StringEncoding];//iPhoneif ([deviceString isEqualToString:@"iPhone1,1"])    return @"iPhone 1G";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 @"Verizon 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";//iPodif ([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 5G";//iPadif ([deviceString isEqualToString:@"iPad1,1"])      return @"iPad";if ([deviceString isEqualToString:@"iPad2,1"])      return @"iPad 2 (WiFi)";if ([deviceString isEqualToString:@"iPad2,2"])      return @"iPad 2 (GSM)";if ([deviceString isEqualToString:@"iPad2,3"])      return @"iPad 2 (CDMA)";if ([deviceString isEqualToString:@"iPad2,4"])      return @"iPad 2 (32nm)";if ([deviceString isEqualToString:@"iPad2,5"])      return @"iPad mini (WiFi)";if ([deviceString isEqualToString:@"iPad2,6"])      return @"iPad mini (GSM)";if ([deviceString isEqualToString:@"iPad2,7"])      return @"iPad mini (CDMA)";if ([deviceString isEqualToString:@"iPad3,1"])      return @"iPad 3(WiFi)";if ([deviceString isEqualToString:@"iPad3,2"])      return @"iPad 3(CDMA)";if ([deviceString isEqualToString:@"iPad3,3"])      return @"iPad 3(4G)";if ([deviceString isEqualToString:@"iPad3,4"])      return @"iPad 4 (WiFi)";if ([deviceString isEqualToString:@"iPad3,5"])      return @"iPad 4 (4G)";if ([deviceString isEqualToString:@"iPad3,6"])      return @"iPad 4 (CDMA)";if ([deviceString isEqualToString:@"iPad4,1"])      return @"iPad Air";if ([deviceString isEqualToString:@"iPad4,2"])      return @"iPad Air";if ([deviceString isEqualToString:@"iPad4,3"])      return @"iPad Air";if ([deviceString isEqualToString:@"iPad5,3"])      return @"iPad Air 2";if ([deviceString isEqualToString:@"iPad5,4"])      return @"iPad Air 2";if ([deviceString isEqualToString:@"i386"])         return @"Simulator";if ([deviceString isEqualToString:@"x86_64"])       return @"Simulator";if ([deviceString isEqualToString:@"iPad4,4"]||[deviceString isEqualToString:@"iPad4,5"]||[deviceString isEqualToString:@"iPad4,6"])      return @"iPad mini 2";if ([deviceString isEqualToString:@"iPad4,7"]||[deviceString isEqualToString:@"iPad4,8"]||[deviceString isEqualToString:@"iPad4,9"])      return @"iPad mini 3";return deviceString;
}