在相机的页面实现，截图，话不多说，直接上代码
-(UIImage*)captureView:(UIView *)theView{
UIGraphicsBeginImageContext(CGSizeMake(theView.size.width, theView.size.height));
[theView drawViewHierarchyInRect:CGRectMake(0, 0,theView.size.width, theView.size.height) afterScreenUpdates:NO];
UIImage *img = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return img;
}
