如何在 iPhone 应用程序中添加 .vcf 文件作为附件

发布于 2024-10-04 22:44:30 字数 64 浏览 0 评论 0原文

在我的应用程序中，我想添加 .vcf 文件作为 MFMailComposeViewController 中的附件。

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蓦然回首 2024-10-11 22:44:30

MFMailComposeViewController 文档显示它的 addAttachmentData:mimeType:fileName: 实例方法是正确的方法：

- (void)addAttachmentData:(NSData*)attachment mimeType:(NSString*)mimeType fileName:(NSString*)filename

附件是加载或转换为 NSData 的实际 vcf 文件。

vcf 的mimeType 是@"text/x-vcard"。

fileName 是您想要的任何名称，但您应该使用 .vcf 扩展名来确保电子邮件程序能够理解它。

The documentation for MFMailComposeViewController shows that its addAttachmentData:mimeType:fileName: instance method is the way to go:

- (void)addAttachmentData:(NSData*)attachment mimeType:(NSString*)mimeType fileName:(NSString*)filename

The attachment is the actual vcf file loaded or transformed into NSData.

The mimeType for a vcf is @"text/x-vcard".

The fileName is whatever you want to call it, though you should uses the .vcf extension to ensure that email programs will understand it.

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自我难过 2024-10-11 22:44:30

使用下面的代码创建一个 vcf 文件并将其保存在目录中。

ABAddressBookRef addressBook = ABAddressBookCreate();

//-------------------Creating and saving vcf --------------------------------
CFArrayRef contacts = ABAddressBookCopyArrayOfAllPeople(addressBook);
CFDataRef vcards = (CFDataRef)ABPersonCreateVCardRepresentationWithPeople(contacts);
NSString *vcardString = [[NSString alloc] initWithData:(NSData *)vcards encoding:NSUTF8StringEncoding];
NSError *error;
NSFileManager *fileMgr = [NSFileManager defaultManager];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *folderPath = [paths objectAtIndex:0];
NSString *filePath = [folderPath stringByAppendingPathComponent:@"contacts.vcf"];
[vcardString writeToFile:filePath atomically:YES encoding:NSUTF8StringEncoding error:nil];
NSLog(@"Documents directory: %@",[fileMgr contentsOfDirectoryAtPath: folderPath error:&error]);
if (addressBook) {
    CFRelease(addressBook);
}

Use the below code to create a vcf file and save it in directory.

ABAddressBookRef addressBook = ABAddressBookCreate();

//-------------------Creating and saving vcf --------------------------------
CFArrayRef contacts = ABAddressBookCopyArrayOfAllPeople(addressBook);
CFDataRef vcards = (CFDataRef)ABPersonCreateVCardRepresentationWithPeople(contacts);
NSString *vcardString = [[NSString alloc] initWithData:(NSData *)vcards encoding:NSUTF8StringEncoding];
NSError *error;
NSFileManager *fileMgr = [NSFileManager defaultManager];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *folderPath = [paths objectAtIndex:0];
NSString *filePath = [folderPath stringByAppendingPathComponent:@"contacts.vcf"];
[vcardString writeToFile:filePath atomically:YES encoding:NSUTF8StringEncoding error:nil];
NSLog(@"Documents directory: %@",[fileMgr contentsOfDirectoryAtPath: folderPath error:&error]);
if (addressBook) {
    CFRelease(addressBook);
}

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