UIView+Image

#import <UIKit/UIKit.h>



@interface UIView (Image)



- (UIImage *) imageByRenderingView;



@end



#import "UIView+Image.h"

#include <QuartzCore/QuartzCore.h>



@implementation UIView (Image)



- (UIImage *)imageByRenderingView

{   

    UIGraphicsBeginImageContext(self.bounds.size);

    [self.layer renderInContext:UIGraphicsGetCurrentContext()];

    UIImage *resultingImage = UIGraphicsGetImageFromCurrentImageContext();

    UIGraphicsEndImageContext();

    return resultingImage;

    

//    CGImageRef topOfImageCG =

//    CGImageCreateWithImageInRect(currImage.CGImage,

//                                 CGRectMake(0,

//                                            0,

//                                            currImage.size.width,

//                                            currImage.size.height / 2.0));

//    

//    UIImage *topOfImage = [UIImage imageWithCGImage:topOfImageCG];

//    

//    CGImageRelease(topOfImageCG);



}



@end

 将view转换成image的一个category, 注释的部分是截取一半图片的方法。