設備信息及方向適應

//

//  ViewController.m

//

 

#import "ViewController.h"

 

@interface ViewController ()

/**

  *  UIImageView

  */

@property(nonatomic,strong)UIImageView *imageView;

 

 

@end

 

 

@implementation ViewController

 

 

- ( void )handleDeviceOrientationDidChange:(UIInterfaceOrientation)interfaceOrientation

{

     //1.獲取 當前設備 實例

     UIDevice *device = [UIDevice currentDevice] ;

     

     

     

     

     /**

      *  2.取得當前Device的方向，Device的方向類型爲Integer

      *

      *  必須調用beginGeneratingDeviceOrientationNotifications方法後，此orientation屬性纔有效，不然一直是0。orientation用於判斷設備的朝向，與應用UI方向無關

      *

      *  @param device.orientation

      *

      */

 

     switch  (device.orientation) {

         case  UIDeviceOrientationFaceUp:

             NSLog(@ "屏幕朝上平躺" );

             break ;

             

         case  UIDeviceOrientationFaceDown:

             NSLog(@ "屏幕朝下平躺" );

             break ;

             

             //系統無法判斷目前Device的方向，有多是斜置

         case  UIDeviceOrientationUnknown:

             NSLog(@ "未知方向" );

             break ;

             

         case  UIDeviceOrientationLandscapeLeft:

             NSLog(@ "屏幕向左橫置" );

             break ;

             

         case  UIDeviceOrientationLandscapeRight:

             NSLog(@ "屏幕向右橫置" );

             break ;

             

         case  UIDeviceOrientationPortrait:

             NSLog(@ "屏幕直立" );

             break ;

             

         case  UIDeviceOrientationPortraitUpsideDown:

             NSLog(@ "屏幕直立，上下顛倒" );

             break ;

             

         default :

             NSLog(@ "沒法辨識" );

             break ;

     }

 

}

 

 

- ( void )viewDidLoad {

 

     

     //設備名稱  e.g. "My iPhone"

     NSString *strName = [[UIDevice currentDevice] name];

     NSLog(@ "設備名稱：%@" , strName);

 

     

     

     /**

      * 系統名稱 e.g. @"iOS"

      */

     NSString *strSysName = [[UIDevice currentDevice] systemName];

     NSLog(@ "系統名稱：%@" , strSysName);

     

     

 

     /**

      * 系統版本號 e.g. @"4.0"

      */

     NSString *strSysVersion = [[UIDevice currentDevice] systemVersion];

     NSLog(@ "系統版本號：%@" , strSysVersion);

     

     

     

     

     /**

      * 設備類型 e.g. @"iPhone", @"iPod touch"

      */

     NSString *strModel = [[UIDevice currentDevice] model];

     NSLog(@ "設備類型：%@" , strModel);

     

     

     

     /**

      * 本地設備模式 localized version of model

      */

     NSString *strLocModel = [[UIDevice currentDevice] localizedModel];

     NSLog(@ "本地設備模式：%@" , strLocModel);

     

 

     

     

     /**

      * UUID 　可用於惟一地標識該設備

      */

     NSUUID *identifierForVendor = [[UIDevice currentDevice] identifierForVendor];

     NSLog(@ "UUID：%@" , identifierForVendor.UUIDString);

     

     

     

     /**

      * UIImage 對象

      */

     UIImage *image = [UIImage imageNamed:@ "scroll.jpg" ];

     self.imageView.image = image;

     

     // 設置圖片範圍

     CGFloat imageH = image.size.height;

     CGFloat imageW = image.size.width;

     CGFloat imageX = 0;

     CGFloat imageY = 0;

     self.imageView.frame = CGRectMake(imageX, imageY, imageW, imageH);

     [self.view addSubview:self.imageView];

     

     [super viewDidLoad];

     // Do any additional setup after loading the view, typically from a nib.

}

 

 

-( void )viewDidAppear:( BOOL )animated

{

     

     /**

      *  開始生成 設備旋轉 通知

      */

     [[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];

     

     

     /**

      *  添加 設備旋轉 通知

      *

      *  @param handleDeviceOrientationDidChange: handleDeviceOrientationDidChange: description

      *

      *  @return return value description

      */

     [[NSNotificationCenter defaultCenter] addObserver:self

                                              selector:@selector(handleDeviceOrientationDidChange:)

                                                  name:UIDeviceOrientationDidChangeNotification

                                                object:nil

      ];

     

 

 

}

 

 

 

-( void )viewDidDisappear:( BOOL )animated

{

     

     

     

     /**

      *  銷燬 設備旋轉 通知

      *

      *  @return return value description

      */

     [[NSNotificationCenter defaultCenter] removeObserver:self

                                                     name:UIDeviceOrientationDidChangeNotification

                                                   object:nil

      ];

     

     

     /**

      *  結束 設備旋轉通知

      *

      *  @return return value description

      */

     [[UIDevice currentDevice]endGeneratingDeviceOrientationNotifications];

     

}

 

 

 

- ( void )didReceiveMemoryWarning {

     [super didReceiveMemoryWarning];

     // Dispose of any resources that can be recreated.

}

 

 

 

 

#pragma 懶加載

 

- (UIImageView *)imageView

{

     if  (!_imageView) {

         _imageView = [[UIImageView alloc] init];

     }

     return  _imageView;

}

 

@end