拆分UIImage一半？ [英] Split UIImage in half?

问题描述

解决方案

如何将UIImage拆分成两半（中间）您可以试试这个，

  UIImage * image = [UIImage imageNamed：@yourImage.png]; 
 CGImageRef tmpImgRef = image.CGImage; 
 CGImageRef topImgRef = CGImageCreateWithImageInRect（tmpImgRef，CGRectMake（0，0，image.size.width，image.size.height / 2.0））; 
 UIImage * topImage = [UIImage imageWithCGImage：topImgRef]; 
 CGImageRelease（topImgRef）; 
 
 CGImageRef bottomImgRef = CGImageCreateWithImageInRect（tmpImgRef，CGRectMake（0，image.size.height / 2.0，image.size.width，image.size.height / 2.0））; 
 UIImage * bottomImage = [UIImage imageWithCGImage：bottomImgRef]; 
 CGImageRelease（bottomImgRef）; 
  

希望这可以帮助你，：）

How would I go about splitting a UIImage In half(down the middle) so it would make two images?

解决方案

You can try this,

UIImage *image = [UIImage imageNamed:@"yourImage.png"];
CGImageRef tmpImgRef = image.CGImage;
CGImageRef topImgRef = CGImageCreateWithImageInRect(tmpImgRef, CGRectMake(0, 0, image.size.width, image.size.height / 2.0));
UIImage *topImage = [UIImage imageWithCGImage:topImgRef];
CGImageRelease(topImgRef);

CGImageRef bottomImgRef = CGImageCreateWithImageInRect(tmpImgRef, CGRectMake(0, image.size.height / 2.0,  image.size.width, image.size.height / 2.0));
UIImage *bottomImage = [UIImage imageWithCGImage:bottomImgRef];
CGImageRelease(bottomImgRef);

hope this can help you, :)

这篇关于拆分UIImage一半？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！