ios - 一个应用程序，可以一次性打开 iBook，然后直接打开这个特定的 pdf/pub 文件

Question

是否可以将应用程序本身的 pdf 文件打开到 iBooks 中。

或者

任何第三方解决方案，可以使用任何 pdf 文件并在应用程序本身中创建翻书。

Answer 1

您确实可以将应用程序中的 PDF 文件打开到 iBooks（或任何其他可以读取 PDF 文件的已安装应用程序）中。

为此，您可以使用UIDocumentInteractionController

NSString *pdfPath = @"path to your pdf file";
NSURL *url = [NSURL fileURLWithPath:pdfPath];
UIDocumentInteractionController *docController = [UIDocumentInteractionController interactionControllerWithURL:url];

docController.delegate = self;
[docController retain];
// docController is released when dismissed (autorelease in the delegate method)

BOOL isValid = [docController presentOpenInMenuFromRect:readPdfButton.frame inView:self.view  animated:YES];

if (!isValid) {
    NSString * messageString = [NSString stringWithFormat:@"No PDF reader was found on your device. In order to consult the %@, please download a PDF reader (eg. iBooks).", yourPDFFileTitle];

    UIAlertView * alertView = [[UIAlertView alloc] initWithTitle:@"Error" message:messageString delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
    [alertView show];
    [alertView release];
}

...

// UIDocumentInteractionController delegate method
- (void)documentInteractionControllerDidDismissOpenInMenu:(UIDocumentInteractionController *)controller {
     [controller autorelease];
}

这UIDocumentInteractionController将打开一个弹出窗口（在 iPad 上）或一个操作表（在 iPhone 上），其中包含设备上安装的所有支持 PDF 的应用程序的选择，因此用户可以选择他想要阅读 PDF 的最喜欢的应用程序。

There are also a few decent PDF reader libraries you can use to open the PDF directly in your app, rather than having to switch application, one of which is VFR PDF Reader/Viewer for iOS