如何把两个UIImage合成一个 iphone编程 ios编程

tangshoulin

于 2012-05-25 16:50:20 发布

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分类专栏： iphone技术文章标签：编程 iphone ios

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			UIImage* frontImage = [[UIImage alloc]initWithCGImage:imp.reimage];
			UIGraphicsBeginImageContext(self.bounds.size);
			[backimage drawAtPoint:CGPointMake(0,0)];
			[frontImage drawAtPoint:CGPointMake(0,0)];
			UIImage* newImage = UIGraphicsGetImageFromCurrentImageContext();
			UIGraphicsEndImageContext();
			[frontImage release];
			currentScreen = newImage;