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原文地址：http://www.knowsky.com/884470.html
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;
}
+(NSString *)phoneName
{
return [[UIDevice currentDevice] name];
}
/**
* 手机系统版本
*
* @return e.g. 8.0
*/
+(NSString *)phoneVersion{
return [[UIDevice currentDevice] systemVersion];
}
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];
}
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];
//iPhone
if ([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";
//iPod
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 5G";
//iPad
if ([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;
}
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原文地址：http://www.cnblogs.com/yueyuanyueyuan/p/5237963.html
