How to send a PDF file using UIActivityViewController

Question

I\'m trying to send a PDF using a UIActivityViewController. So far everything works fine using a fairly basic approach but the one issue I have is that when I s

Answer 1

For Objective-C tested code to share PDF

- (void)downloadPDFfile:(NSString *)fileName withFileURL:(NSString *)shareURL {
    dispatch_async(dispatch_get_main_queue(), ^ {
        NSString *documentDir = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject];
        NSString *filePath = [documentDir stringByAppendingPathComponent:[NSString stringWithFormat:@"/%@",[self generateName:fileName withFiletype:@"pdf"]]];
        NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:shareURL]];
        NSURLSession *session = [NSURLSession sharedSession];
        NSURLSessionDataTask *task = [session dataTaskWithRequest:request
                                                completionHandler:
                                      ^(NSData *data, NSURLResponse *response, NSError *error) {
                                          if (error) {
                                              NSLog(@"Download Error:%@",error.description);
                                          } else if (data && error == nil) {
                                              dispatch_async(dispatch_get_main_queue(), ^{
                                                  [data writeToFile:filePath atomically:YES];
                                                  [self shareFile:fileName withFilepath:filePath];
                                              });
                                          }
                                      }];

        [task resume];
    });
}

-(void)shareFile:(NSString*)withfileName withFilepath:(NSString*)filePath {
    NSMutableArray *items = [NSMutableArray array];

    if (filePath) {
        [items addObject:[NSURL fileURLWithPath:filePath]];
    }

    UIActivityViewController *activityViewController = [[UIActivityViewController alloc] initWithActivityItems:items applicationActivities:nil];
    [activityViewController setValue:withfileName forKey:@"subject"];

    if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
        activityViewController.modalPresentationStyle = UIModalPresentationPopover;
        UIPopoverPresentationController *popPC = activityViewController.popoverPresentationController;
        popPC.sourceView = self.view;
        CGRect sourceRext = CGRectZero;
        sourceRext.origin = CGPointMake(self.view.frame.size.width-30, 0);
        popPC.sourceRect = sourceRext;
        popPC.permittedArrowDirections = UIPopoverArrowDirectionDown;
    }

    [activityViewController setCompletionWithItemsHandler:
     ^(NSString *activityType, BOOL completed, NSArray *returnedItems, NSError *activityError) {

     }];
    [self presentViewController:activityViewController animated:YES completion:nil];
}

-(NSString*)generateName:(NSString*)title withFiletype:(NSString*)type {
    NSString *subject = [title stringByReplacingOccurrencesOfString:@" " withString:@"_"];
    subject = [NSString stringWithFormat:@"%@.%@",subject,type];
    return subject;
}

call function like below

[self downloadPDFfile:@"yourFileName" withFileURL:shareURL];