在iBooks的iPad文檔文件夾中打開保存的PDF文件？

Question

我在iPad上的應用程序文檔文件夾中保存了一個pdf文件。我希望用戶使用iBooks在iPad上打開該PDF文件。有沒有辦法打開保存在應用程序的文檔文件夾中的iBooks中的PDF？

Answer 1

編輯：最佳選項：使用UIActivityViewController

//create file path here 
NSString *strFileURL = [NSTemporaryDirectory() stringByAppendingPathComponent:@"data.pdf"]; 

//Check if file path exists or not 
BOOL checkExist = [[NSFileManager defaultManager] fileExistsAtPath:strFileURL isDirectory:nil]; 
if (checkExist) 
{ 
    //create NSURL object from string path 
    NSURL *urlFilePath = [NSURL fileURLWithPath:strFileURL]; 

    UIActivityViewController *activityViewController = [[UIActivityViewController alloc] initWithActivityItems:@[urlFilePath] applicationActivities:nil]; 

    //for iOS8 check 
    if ([activityViewController respondsToSelector:@selector(popoverPresentationController)]) 
    { 
     //use triggering UI element like say here its button 
     activityViewController.popoverPresentationController.sourceView = yourBtnSender; 
    } 

    //now present activityViewController 
    [self presentViewController:activityViewController animated:YES completion:NULL]; 

} 

---

另一種選擇使用UIDocumentInteractionController此：

//create file path here 
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory , NSUserDomainMask, YES); 
NSString *documentsDir = [paths objectAtIndex:0]; 
NSString *pdfFilePath [documentsDir stringByAppendingPathComponent:yourPdfFile.pdf];// your yourPdfFile file here 
NSURL *url = [NSURL fileURLWithPath:pdfPath]; 

//create documentInteractionController here 
UIDocumentInteractionController *docController = [UIDocumentInteractionController interactionControllerWithURL:url]; 
//set delegate 
docController.delegate = self; 

//provide button's frame from where popover will be lauched 
BOOL isValid = [docController presentOpenInMenuFromRect:yourReadPdfButton.frame inView:self.view animated:YES]; // Provide where u want to read pdf from yourReadPdfButton 

//check if its ready show popover 
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]; 
} 

使用UIDocumentInteractionControllerDelegate方法

// UIDocumentInteractionController delegate method 
- (void)documentInteractionControllerDidDismissOpenInMenu:(UIDocumentInteractionController *)controller { 
    NSLog(@"dissmissed"); 
} 

幸得@Mutix 's answer

[應用程序打開的iBook，然後一氣呵成這個特殊的PDF /酒館文件通俗易懂]（的