iOS_屏幕截图

#import <UIKit/UIKit.h>

@interface UIView (ImageScreenShot)

- (UIImage *)imageScreenShot;

@end

#import "UIView+ImageScreenShot.h"

@implementation UIView (ImageScreenShot)

- (UIImage *)imageScreenShot {

UIGraphicsBeginImageContext(self.frame.size);
[self.layer renderInContext:UIGraphicsGetCurrentContext()];

UIImage * image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();

return image;
}

@end

self.view.backgroundColor = [UIColor redColor];

UIImage * image = [self.view imageScreenShot];

if (image) {
self.view.backgroundColor = [UIColor whiteColor];

self.imageView.image = image;
}