系统信息获取

@property(nonatomic,readonly,strong) NSString    *name;              // e.g. "My iPhone"
@property(nonatomic,readonly,strong) NSString    *model;             // e.g. @"iPhone", @"iPod touch"
@property(nonatomic,readonly,strong) NSString    *localizedModel;    // localized version of model
@property(nonatomic,readonly,strong) NSString    *systemName;        // e.g. @"iOS"
@property(nonatomic,readonly,strong) NSString    *systemVersion;     // e.g. @"4.0"
@property(nonatomic,readonly) UIDeviceOrientation orientation;       // return current device orientation.  this will return UIDeviceOrientationUnknown unless device orientation notifications are being generated.

NSLog(@"%@", device.name);           //用户自定义终端名
NSLog(@"%@", device.model);          //型号名
NSLog(@"%@", device.localizedModel); //本地型号名
NSLog(@"%@", device.systemName);     //OS名
NSLog(@"%@", device.systemVersion);  //OS版本
NSLog(@"%ld", (long) device.orientation);//屏幕方向

2016-01-04 14:20:28.319 01-Myproject[711:11710] iPhone Simulator
2016-01-04 14:20:28.320 01-Myproject[711:11710] iPhone
2016-01-04 14:20:28.320 01-Myproject[711:11710] iPhone
2016-01-04 14:20:28.321 01-Myproject[711:11710] iOS
2016-01-04 14:20:28.321 01-Myproject[711:11710] 9.1
2016-01-04 14:20:28.321 01-Myproject[711:11710] 0

typedef NS_ENUM(NSInteger, UIDeviceOrientation) {
UIDeviceOrientationUnknown,
//未知方向
UIDeviceOrientationPortrait,            // Device oriented vertically, home button on the bottom
//屏幕直立
UIDeviceOrientationPortraitUpsideDown,  // Device oriented vertically, home button on the top
//屏幕直立，上下颠倒
UIDeviceOrientationLandscapeLeft,       // Device oriented horizontally, home button on the right
//屏幕向左横置
UIDeviceOrientationLandscapeRight,      // Device oriented horizontally, home button on the left
//屏幕向右横置
UIDeviceOrientationFaceUp,              // Device oriented flat, face up
//屏幕朝上平躺
UIDeviceOrientationFaceDown             // Device oriented flat, face down
//屏幕朝下平躺
};