保存图片到本地相册

    YQTapGestureREcongnier *tap = [[YQTapGestureREcongnier alloc] initWithTarget:self action:@selector(tapActinn:)];

    [_Mainimageview sd_setImageWithURL:url placeholderImage:[UIImage imageNamed:@"不字白边"] options:SDWebImageRetryFailed completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL) {

        

        tap.tapImage = image;

        [_Mainimageview addGestureRecognizer:tap];

    }];

- (void)image666:(UIImage *)image

{

    self.image = image;

    UIActionSheet *sheet = [[UIActionSheet alloc] initWithTitle:nil delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:nil otherButtonTitles:@"保存图片", nil];

    [sheet showInView:self.view];

    

    

}

- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex

{

    switch (buttonIndex) {

        case 0:

             UIImageWriteToSavedPhotosAlbum(_image, self, @selector(imageSavedToPhotosAlbum:didFinishSavingWithError:contextInfo:), nil);

            break;

         case 1:

            NSLog(@"取消保存图片");

            break;

        default:

            break;

    }

}

- (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);

    

    if (error == nil) {

        

        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"提示" message:@"已存入手机相册" delegate:self cancelButtonTitle:nil otherButtonTitles:@"确定", nil,nil];

        [alert show];

        

    }else{

        

        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"提示" message:@"保存失败" delegate:self cancelButtonTitle:nil otherButtonTitles:@"确定", nil,nil];

        [alert show];

    }

}