判断机型，包括iPhone X

做适配就要判断机型，前两天我突然发现用屏幕尺寸来判断有点不负责任，就正儿八经判断一下吧，亲测有效的哦~

// 获取设备型号然后手动转化为对应名称
- (NSString *)getDeviceName
{
    // 需要#import "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";
    // 日行两款手机型号均为日本独占，可能使用索尼FeliCa支付方案而不是苹果支付
    if ([deviceString isEqualToString:@"iPhone9,1"])    return @"国行、日版、港行iPhone 7";
    if ([deviceString isEqualToString:@"iPhone9,2"])    return @"港行、国行iPhone 7 Plus";
    if ([deviceString isEqualToString:@"iPhone9,3"])    return @"美版、台版iPhone 7";
    if ([deviceString isEqualToString:@"iPhone9,4"])    return @"美版、台版iPhone 7 Plus";
    if ([deviceString isEqualToString:@"iPhone10,1"])   return @"国行(A1863)、日行(A1906)iPhone 8";
    if ([deviceString isEqualToString:@"iPhone10,4"])   return @"美版(Global/A1905)iPhone 8";
    if ([deviceString isEqualToString:@"iPhone10,2"])   return @"国行(A1864)、日行(A1898)iPhone 8 Plus";
    if ([deviceString isEqualToString:@"iPhone10,5"])   return @"美版(Global/A1897)iPhone 8 Plus";
    if ([deviceString isEqualToString:@"iPhone10,3"])   return @"国行(A1865)、日行(A1902)iPhone X";
    if ([deviceString isEqualToString:@"iPhone10,6"])   return @"美版(Global/A1901)iPhone X";
    
    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 ([machineString isEqualToString:@"iPad6,11"])    return @"iPad 5 (WiFi)";
    //    if ([machineString isEqualToString:@"iPad6,12"])    return @"iPad 5 (Cellular)";
    //    if ([machineString isEqualToString:@"iPad7,1"])     return @"iPad Pro 12.9 inch 2nd gen (WiFi)";
    //    if ([machineString isEqualToString:@"iPad7,2"])     return @"iPad Pro 12.9 inch 2nd gen (Cellular)";
    //    if ([machineString isEqualToString:@"iPad7,3"])     return @"iPad Pro 10.5 inch (WiFi)";
    //    if ([machineString isEqualToString:@"iPad7,4"])     return @"iPad Pro 10.5 inch (Cellular)";
    
    if ([deviceString isEqualToString:@"AppleTV2,1"])    return @"Apple TV 2";
    if ([deviceString isEqualToString:@"AppleTV3,1"])    return @"Apple TV 3";
    if ([deviceString isEqualToString:@"AppleTV3,2"])    return @"Apple TV 3";
    if ([deviceString isEqualToString:@"AppleTV5,3"])    return @"Apple TV 4";
    
    if ([deviceString isEqualToString:@"i386"])         return @"Simulator";
    if ([deviceString isEqualToString:@"x86_64"])       return @"Simulator";
    
    return deviceString;
}