Android GMail API获取Outbox邮件

Question

I try to get only mails from Outbox:

            String user = "me";
        ListMessagesResponse response = mService.users().messages().list(user).execute();
        //set selected labels
        //[CATEGORY_PERSONAL, CATEGORY_SOCIAL, Регистрации, CATEGORY_FORUMS, IMPORTANT, CATEGORY_UPDATES, CHAT, SENT, INBOX, TRASH, CATEGORY_PROMOTIONS, DRAFT, SPAM, STARRED, UNREAD]
        List<String> labelIds = new ArrayList<>();
        labelIds.add("SENT");
        List<Message> messages = new ArrayList<Message>();
        while (response.getMessages() != null) {
            messages.addAll(response.getMessages());
            if (response.getNextPageToken() != null) {
                String pageToken = response.getNextPageToken();
                response = mService.users().messages().list(user).setLabelIds(labelIds).setPageToken(pageToken).execute();
            } else {
                break;
            }
        }

but I get Inbox messages too

Answer 1

I need to set filter on the first response line. This code work:

String user = "me";
        //set selected labels
        //[CATEGORY_PERSONAL, CATEGORY_SOCIAL, Регистрации, CATEGORY_FORUMS, IMPORTANT, CATEGORY_UPDATES, CHAT, SENT, INBOX, TRASH, CATEGORY_PROMOTIONS, DRAFT, SPAM, STARRED, UNREAD]
        List<String> labelIds = new ArrayList<>();
        labelIds.add("SENT");
        ListMessagesResponse response = mService.users().messages().list(user).setLabelIds(labelIds).execute();

        List<Message> messages = new ArrayList<Message>();
        while (response.getMessages() != null) {
            messages.addAll(response.getMessages());
            if (response.getNextPageToken() != null) {
                String pageToken = response.getNextPageToken();
                response = mService.users().messages().list(user).setPageToken(pageToken).execute();
            } else {
                break;
            }
        }