Implementation of the image capture program in iPhone development applications

IPhone DevelopmentApplication in progressScreenshot ProgramCase implementation is the content to be introduced in this article, mainly through codeScreenshot Program, The specific implementation process, let's look at the detailed code.

 
 

  
  
// Obtain the screen image
  
  
-(UIImage *) imageFromView: (UIView *) theView
  
  
{
  
  

  
  
UIGraphicsBeginImageContext (theView. frame. size );
  
  
CGContextRef context = UIGraphicsGetCurrentContext ();
  
  
[TheView. layer renderInContext: context];
  
  
UIImage * theImage = UIGraphicsGetImageFromCurrentImageContext ();
  
  
UIGraphicsEndImageContext ();
  
  

  
  
Return theImage;
  
  
}
  
  
 
  
  
// Obtain the screen image within a certain range
  
  
-(UIImage *) imageFromView: (UIView *) theView atFrame :( CGRect) r
  
  
{
  
  
UIGraphicsBeginImageContext (theView. frame. size );
  
  
CGContextRef context = UIGraphicsGetCurrentContext ();
  
  
CGContextSaveGState (context );
  
  
UIRectClip (r );
  
  
[TheView. layer renderInContext: context];
  
  
UIImage * theImage = UIGraphicsGetImageFromCurrentImageContext ();
  
  
UIGraphicsEndImageContext ();
  
  

  
  
Return theImage; // [self getImageAreaFromImage: theImage atFrame: r];
  
  
}
 
 

Summary:IPhone DevelopmentApplication in progressScreenshot ProgramThe implementation of the case is complete. I hope this article will help you!