Cocoa osx NSSharingServicePicker set default email address - macos

Question

In my app for Mac I use the NSSharingServicePicker for mailing some items. My problem is that I want to set the default email address to be sent. How can I set this value to show it when the mail client opens??
I have this code:
NSMutableArray *shareItems = [NSMutableArray arrayWithObject:#"MyText"];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *fileName = [NSString stringWithFormat:#"%#/MyFile.pdf", documentsDirectory];
NSURL* tempFileURL = [NSURL fileURLWithPath:fileName];
[shareItems addObject:tempFileURL];
NSSharingServicePicker *sharingPicker = [[NSSharingServicePicker alloc] initWithItems:shareItems];
sharingPicker.delegate = self;
This is what I want. I need to set the default destination address in the email.
Sorry for my poor english. Thanks in advance.
SOLVED:
-(id<NSSharingServiceDelegate>)sharingServicePicker:(NSSharingServicePicker *)sharingServicePicker delegateForSharingService:(NSSharingService *)sharingService
{
[sharingService setRecipients:#[#"email#email.com"]];
[sharingService setSubject:#"MySubject"];
return self;
}

Answer 1

NSSharingServiceNameComposeEmail is generally the standard way to achieve this:
NSSharingService *service = [NSSharingService sharingServiceNamed:NSSharingServiceNameComposeEmail];
service.delegate = self;
service.recipients = #[#"tim.cook#apple.com"];
service.subject = [ NSString stringWithFormat:#"%#",NSLocalizedString(#"Re: Requested PDF",nil)];
[service performWithItems:shareItems];
It's not exactly clear what you are doing with NSSharingServicePicker, although this code can be used with shareItems, so the file would be attached along with the body text.