问iPhone 5:想找出iPhone 5的屏幕大小

EN

 if([[UIDevice currentDevice]userInterfaceIdiom]==UIUserInterfaceIdiomPhone)
 {
     if ([[UIScreen mainScreen] bounds].size.height == 568)
     {


     }
     else
     {
         //iphone 3.5 inch screen
     }
 }
 else
 {
        //[ipad]
 }

CGRect screenBounds = [[UIScreen mainScreen] bounds];
if (screenBounds.size.height == 568)
   // 4-inch
else
   // 3.5-inch

instead of find hight you have to use following code to find your device is iPhone 5 or below iphone 5.

#define IS_IPHONE_5 ( fabs( ( double )[ [ UIScreen mainScreen ] bounds ].size.height - ( double )568 ) < DBL_EPSILON )
-(void)ViewDidLoad
{
   if(IS_IPHONE_5)
   {
      //code of iphone 5
   }
   else
  {
      //code of below iphone 5
  }
}