iOS获取设备信息常用方法详解手机开发

    NSLog(@"HostName: %@", [[NSProcessInfo processInfo] hostName]);   
    //globallyUniqueString 唯一的标示符，每次调用都会不一样，可以用作一些临时缓存文件的名字   
    NSLog(@"GlobalUniqueString: %@", [[NSProcessInfo processInfo] globallyUniqueString]);   
    //操作系统名称   
    NSLog(@"OperatingSystemName: %@", [[NSProcessInfo processInfo] operatingSystemName]);   
    //操作系统版本   
    NSLog(@"OperatingSystemVersion: %@", [[NSProcessInfo processInfo] operatingSystemVersionString]);   
    //物理内存   
    NSLog(@"PhysicalMem: %llu", [[NSProcessInfo processInfo] physicalMemory]);   
    //进程名称   
    NSLog(@"ProcessName: %@", [[NSProcessInfo processInfo] processName]);   
    //供应商标识   
    NSLog(@"UniqueId: %@", [UIDevice currentDevice].identifierForVendor);   
    //设备类型（iPhone、iPad）   
    NSLog(@"userInterfaceIdiom: %d", [UIDevice currentDevice].userInterfaceIdiom);   
    //设备名字   
    NSLog(@"Name: %@", [UIDevice currentDevice].name);   
    //系统名字   
    NSLog(@"SystemName: %@", [UIDevice currentDevice].systemName);   
    //系统版本   
    NSLog(@"SystemVersion: %@", [UIDevice currentDevice].systemVersion);   
    //模型   
    NSLog(@"Model: %@", [UIDevice currentDevice].model);   
    //本地化的模型   
    NSLog(@"LocalizeModel: %@", [UIDevice currentDevice].localizedModel);   
    //电池状态   
    NSLog(@"BatteryLevel: %f", [UIDevice currentDevice].batteryLevel);   
   //判断设备是否是9.0以上系统 
    [[[UIDevice currentDevice] systemVersion] floatValue] >= 9.0f  注意： 
//假如我们的设备版本号为9.1.1（为字符串类型），对其进行floatValue浮点化后值为9.100000。3. //判断设备是否是iPhone、iPad 
    iPad：[[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPad   
    iPhone: [[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone   
       
    UIUserInterfaceIdiom in UIDevice.h   
    typedef NS_ENUM(NSInteger, UIUserInterfaceIdiom) {   
    #if __IPHONE_3_2 <= __IPHONE_OS_VERSION_MAX_ALLOWED   
        UIUserInterfaceIdiomPhone,           // iPhone and iPod touch style UI   
        UIUserInterfaceIdiomPad,             // iPad style UI   
    #endif   
    };