为什么 MFMailComposer 带有？邮件中没有显示图像？

发布于 2024-11-19 08:35:23 字数 352 浏览 3 评论 0原文

我正在使用MFMailComposer通过邮件发送一些图像。我将图像转换为 Base64 并使用标签将图像添加到 HTML 正文（我没有将其添加为附件）。

[htmlString appendFormat:
@"<img src='data:image/png;base64,%@' width=300 height=200 />", imageAsBase64];

图像在 MFMailComposer 中正确显示，但从 MFMailComposer 发送的实际邮件中没有显示图像。

我应该做什么才能让它发挥作用？

原文

I am sending some images in mail using MFMailComposer. I am converting the image to Base64 and using <img> tag to add images to the HTML body(I am not adding it as attachment).

[htmlString appendFormat:
@"<img src='data:image/png;base64,%@' width=300 height=200 />", imageAsBase64];

The images are displaying correctly in MFMailComposer, but there are no images displayed in the actual mail which is sent from the MFMailComposer.

What should I do to make it work?

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ゞ记忆︶ㄣ 2024-11-26 08:35:23

几周前我遇到了同样的问题，我发现 Gmail 不支持嵌入图像。您可以在其他邮件提供商（例如您的域电子邮件）中查看电子邮件中的图像，但不能在 Gmail 中查看。

尝试发送另一封电子邮件，您可以看到图像。您需要添加图像作为附件，然后您就可以看到图像，它将显示在电子邮件正文的底部。

希望这有帮助。

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南渊 2024-11-26 08:35:23

您必须将图像添加为附件。您在 HTML 中看到的呈现的电子邮件无法通过缺少图像 URL 正确呈现。

这是一个例子：需要注意的是，如果您想包含 PDF 之类的内容，则必须包含图像，否则 mfmailcomposer 将失败......这是苹果错误。

我找到了解决方案...我在苹果雷达上提交了一个关于它的错误。 MFMailcomposer 有一个错误，您必须发送图像以及额外的附件才能使 pdf 之类的奇怪项目正常工作...尝试此操作并将 pdf 替换为您的卡片：

MFMailComposeViewController *controller = [[MFMailComposeViewController alloc] init];
NSString *emailSubject = [NSString localizedStringWithFormat:@"MedicalProfile"];
[controller setSubject:emailSubject];


NSString *fileName = [NSString stringWithFormat:@"%@.pdf", profileName];
NSString *saveDirectory = NSTemporaryDirectory();
NSString *saveFileName = fileName;
NSString *documentPath = [saveDirectory stringByAppendingPathComponent:saveFileName];  

*** YOU MUST INCLUDE AN IMAGE OR THE PDF ATTATCHMENT WILL FAIL!!!***
// Attach a PDF file to the email 
NSData *pdfData = [NSData dataWithContentsOfFile:documentPath];    
[controller addAttachmentData:pdfData mimeType:@"application/pdf" fileName:fileName];


// Attach an image to the email
NSString *imagePath = [[NSBundle mainBundle] pathForResource:@"miniDoc" ofType:@"png"];
NSData *imageData = [NSData dataWithContentsOfFile:imagePath];
[controller addAttachmentData:imageData mimeType:@"image/png" fileName:@"doctor"];


[controller setMessageBody:[NSString stringWithFormat:@"%@'s Medical Profile attatched!", profileName] isHTML:NO];

[self presentModalViewController:controller animated:YES];
controller.mailComposeDelegate = self;
[controller release];

You have to add the images as an attachment. The rendered email that you see with HTML doesn't get rendered properly with the missing image URL.

here is an example: the caveat is that if you want to include things like a PDF you must include an image otherwise mfmailcomposer will fail... this in an apple bug.

I found the solution... Isubmitted a bug on Apple radar about it. MFMailcomposer has a bug in which you have to send an image along with your extra attachments in order to get the weird items like a pdf to work... try this and replace the pdf with your card:

MFMailComposeViewController *controller = [[MFMailComposeViewController alloc] init];
NSString *emailSubject = [NSString localizedStringWithFormat:@"MedicalProfile"];
[controller setSubject:emailSubject];


NSString *fileName = [NSString stringWithFormat:@"%@.pdf", profileName];
NSString *saveDirectory = NSTemporaryDirectory();
NSString *saveFileName = fileName;
NSString *documentPath = [saveDirectory stringByAppendingPathComponent:saveFileName];  

*** YOU MUST INCLUDE AN IMAGE OR THE PDF ATTATCHMENT WILL FAIL!!!***
// Attach a PDF file to the email 
NSData *pdfData = [NSData dataWithContentsOfFile:documentPath];    
[controller addAttachmentData:pdfData mimeType:@"application/pdf" fileName:fileName];


// Attach an image to the email
NSString *imagePath = [[NSBundle mainBundle] pathForResource:@"miniDoc" ofType:@"png"];
NSData *imageData = [NSData dataWithContentsOfFile:imagePath];
[controller addAttachmentData:imageData mimeType:@"image/png" fileName:@"doctor"];


[controller setMessageBody:[NSString stringWithFormat:@"%@'s Medical Profile attatched!", profileName] isHTML:NO];

[self presentModalViewController:controller animated:YES];
controller.mailComposeDelegate = self;
[controller release];

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