iOS相册保存

 UIImageWriteToSavedPhotosAlbum(_publishPic.image, self, @selector(imageSavedToPhotosAlbum:didFinishSavingWithError:contextInfo:), nil);

- (void)imageSavedToPhotosAlbum:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo

{

    NSString *message = @"呵呵";

    if (!error) {

        message = @"成功保存到相册";

    }else

    {

        message = [error description];

    }

    NSLog(@"message is %@",message);

}