保存PDF，然后通过电子邮件发送

Question

我正试图从url中保存一个pdf，然后通过电子邮件发送。发件人似乎有，但收件人没有收到。

当我做NSString file的NSLog时，我得到/var/mobile/Applications/0ADE222E-6346-4C6C-8348-DA5327B980AA/Documents/myPDF.pdf

它似乎保存了，但没有发送。下面是我保存和发送的代码

编辑

更新的代码

    // This pdfURL is 0 bytes
    NSData *pdfURL = [[NSData alloc] initWithContentsOfURL:[NSURL URLWithString:[NSString stringWithFormat:@"%@",webPage.urlString]]];
    //Store the Data locally as PDF File
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentDirectory = [paths objectAtIndex:0];
    NSString *file = [documentDirectory stringByAppendingFormat:@"/myPDF.pdf"];
    [pdfURL writeToFile:file atomically:YES];
    //Sending the pdf
    MFMailComposeViewController *composer = [[MFMailComposeViewController alloc] init];
    composer.mailComposeDelegate = self;        
    if ([MFMailComposeViewController canSendMail]){
        //Changed email for privacy issues
        [composer setToRecipients:[NSArray arrayWithObjects:@"[e-mail]", nil]];
        [composer setSubject:[NSString stringWithFormat:@"%@ email",titleText]];
        [composer setMessageBody:@"your custom body content" isHTML:NO];
        NSLog(@"pdf %@",file);
        // This pdfData is 0 bytes
        NSData *pdfData = [NSData dataWithContentsOfFile:file];
        [composer addAttachmentData:pdfData mimeType:@"application/pdf" fileName:@"myPDF.pdf"];
        [composer setModalTransitionStyle:UIModalTransitionStyleCrossDissolve];
        [self presentModalViewController:composer animated:YES];            
    }

Answer 1

如果来自URL，请将其存储在NSData:中

NSData *pdfData = [NSData dataWithContentsOfURL[NSURL URLWithString:@"URL Of Pdf"]];

然后将其附加到邮件

Answer 2

问题在于webPage.urlString为空。此代码只需确保url字符串不为空即可工作：P