截屏的方法

首先加入头文件#import <QuartzCore/QuartzCore.h>，并载入QuartzCore.framework库。

 

UIGraphicsBeginImageContext(self.view.bounds.size);	
[self.view.layer renderInContext:UIGraphicsGetCurrentContext()]; 	
UIImage *image= UIGraphicsGetImageFromCurrentImageContext();	
UIGraphicsEndImageContext();
UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil);