ios - How to retrieve the .xml extension attachments from mail by using MailCore to Sample iPhone app -

how retrieve .xml extension attachments mail using mailcore iphone?

i used mailcore download attachments mail sample iphone app. getting inbox subjects mail subjects sort particular mail subject , mail attachments.

the problem got particular mail subject not attachments. used below code attachments mail it's not working.

nsarray *array=[msg attachments]; ctbareattachment *ctbaratt=[array objectatindex:0]; ctcoreattachment *ctcoreatt=[ctbaratt fetchfullattachment]; 

but i'm getting :

array count 0 

please share ideas.

this few reasons:

1)it possible you're not downloading enough information ctcoremessage. when making request download ctcoremessages must specify information want specifying correct fetch attributes.

for example:

[core_folder messagesfromsequencenumber:from to:to withfetchattributes: ctfetchattrenvelope | ctfetchattrbodystructure] 

should populate information attachments.

when fetching message imap, command specify information wants.

you can see being fetched enabling mailcore logging follows:

mailcoreenablelogging(); [core_folder messagesfromsequencenumber:from to:to withfetchattributes: ctfetchattrenvelope | ctfetchattrbodystructure]; mailcoredisablelogging(); 

you see commands of format

<command number> <uid> <command> (<requested structure>) 

i imagine see this:

1 uid fetch (envelope) 

you should ensure inside () either body or body[2] or rfc822 these contain information attachments.

when see being fetched can read rfc, if dealing mailcore , imap worth investment in time.

2)failing that, perhaps ctcoreaccount and/or ctcorefolder not connected, preventing ctcoremessage having valid mailimapsession , being unable download attachment information. if attribute inside ctcoremessage not available libetpan should download on request. fact not suggests account or folder may not valid or connected.