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iOS用のPSPDFKitを使用しています。

PSPDFViewController魔女の適合ではPSPDFViewControllerDelegate- を上書きし、そのページ(BOOL)pdfViewController didTapOnPageView: atPoint:(CGPoint)viewPointの画像がクリックされたかどうかを確認する必要があります。[pageView.textParser.images]

ポイントの座標を画像の座標と一致させるにはどうすればよい[viewPoint]ですか?

要するに、pdf で画像の自動検出を実装したいと考えています。

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更新：PSPDFKIT例で 答えを見つけました、

- (void)pdfViewController:(PSPDFViewController *)pdfController didLoadPageView:(PSPDFPageView *)pageView {
    // Iterate over all images and add button overlays on top.
    // Accessing the text parser will block the thread, so it'll be better to access the in a background thread and than use the result on the main thread (but then you'll have to check if the pageView still points at the same page which would add too much complexity for this simple example.)
    for (PSPDFImageInfo *imageInfo in [pageView.document textParserForPage:pageView.page].images) {
        // Create the view
        PSCAutoResizeButton *resizeButton = [PSCAutoResizeButton new];
        resizeButton.targetPDFRect = [imageInfo boundingBox];
        resizeButton.imageInfo = imageInfo;
        resizeButton.showsTouchWhenHighlighted = NO;
        resizeButton.layer.borderColor = [UIColor redColor].CGColor;
        resizeButton.layer.borderWidth = 0.f;
        resizeButton.backgroundColor = [UIColor colorWithWhite:0.f alpha:0.2f];
        [resizeButton addTarget:self action:@selector(imageButtonPressed:) forControlEvents:UIControlEventTouchUpInside];
        // Add to container view. Only here views will get notified on changes via PSPDFAnnotationViewProtocol.
        // The container view will be purged when the page is prepared for reusage.
        [pageView.annotationContainerView addSubview:resizeButton];
    } }

プライベート

- (void)imageButtonPressed:(PSCAutoResizeButton *)button {
    NSParameterAssert([button isKindOfClass:PSCAutoResizeButton.class]);

    PSPDFImageInfo *imageInfo = button.imageInfo;
    UIImage *image = [imageInfo imageWithError:NULL];

    // Show view controller
    if (image) {
        UIViewController *imagePreviewController = [[UIViewController alloc] initWithNibName:nil bundle:nil];
        imagePreviewController.title = imageInfo.imageID;
        UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
        imageView.contentMode = UIViewContentModeScaleAspectFit;
        imageView.backgroundColor = UIColor.blackColor;
        imagePreviewController.view = imageView;
        [self presentModalOrInPopover:imagePreviewController embeddedInNavigationController:YES withCloseButton:YES animated:YES sender:button options:@{PSPDFPresentOptionAlwaysModal : @YES, PSPDFPresentOptionModalPresentationStyle : @(UIModalPresentationFormSheet)}];
    } }
于 2013-12-17T08:48:33.097 に答える