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Editor to share with you iOS how to achieve picture merging and screenshots, I believe that most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

Merge the two pictures

-(UIImage *) addImage: (UIImage *) p_w_picpath2 toImage: (UIImage *) p_w_picpath3

{

UIGraphicsBeginImageContext (p_w_picpath3.size)

/ / Draw p_w_picpath3

[p_w_picpath3 drawInRect:CGRectMake (0,0, p_w_picpath3.size.width, p_w_picpath3.size.height)]

/ / Draw p_w_picpath2

[p_w_picpath2 drawInRect:CGRectMake (20, 20, p_w_picpath2.size.width, p_w_picpath2.size.height)]

UIImage * resultImage=UIGraphicsGetImageFromCurrentImageContext ()

UIGraphicsEndImageContext ()

Return resultImage

}

Screenshot

-(UIImage*) combineImageFromCuttingScreen {

UIGraphicsBeginImageContext (self.baseImageView.frame.size)

UIGraphicsBeginImageContextWithOptions (self.combineView.frame.size, YES, 1)

CGContextRef context = UIGraphicsGetCurrentContext ()

CGContextSetShouldAntialias (context, YES)

CGContextSetShouldSmoothFonts (UIGraphicsGetCurrentContext (), YES)

CGContextSaveGState (context)

CGRect r = CGRectMake (0,0,320,392)

UIRectClip (r)

[self.combineView.layer renderInContext:context]

UIImage * theImage = UIGraphicsGetImageFromCurrentImageContext ()

UIGraphicsEndImageContext ()

Return theImage

}

The above is all the contents of the article "how to merge pictures and take screenshots in iOS". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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