[英]MesageID Android Gmail Api
如何使用Android中的Gmail Api獲取用於閱讀特定郵件的messageID
?
Gmail Api的users.messages.get
方法需要兩個參數:
userId
將是用戶名 messageID
那么,怎么可能得到messageID
和什么是真正的messageID
?
要獲取messageIds
,首先需要列出帶有一些可選參數的消息 。 這將返回messageIds
,它只是表示消息的唯一字符串。
常規http請求的示例如下:
從我自己發送的帶有INBOX標簽的郵件中只給我一條messageId
userId = me
labelIds = INBOX
maxResults = 1
q = from:me
GET https://www.googleapis.com/gmail/v1/users/me/messages?labelIds=INBOX&maxResults=1&q=from%3Ame
響應:
{
"messages": [
{
"id": "14f8d57248451a6c", // This is the messageId!
"threadId": "14f8d57248451a6c"
}
],
"nextPageToken": "04016634599566360443",
"resultSizeEstimate": 2
}
然后我在get-method中使用此messageId來獲取實際內容:
GET https://www.googleapis.com/gmail/v1/users/me/messages/14f8d57248451a6c
響應:
{
"id": "14f8d57248451a6c",
"threadId": "14f8d57248451a6c",
"labelIds": [
"SENT",
"INBOX",
"IMPORTANT"
],
"snippet": "",
"historyId": "563949",
"internalDate": "1441185342000",
"payload": {
"mimeType": "multipart/mixed",
"filename": "",
"headers": [
{
"name": "MIME-Version",
"value": "1.0"
},
{
"name": "Received",
"value": "by 10.28.99.138 with HTTP; Wed, 2 Sep 2015 02:15:42 -0700 (PDT)"
},
{
"name": "Date",
"value": "Wed, 2 Sep 2015 11:15:42 +0200"
}, ...
如果你想使用一個漂亮的庫而不是自己做請求, Android Quickstart可以幫助你很多。
您可以列出所有消息,然后您可以從中獲取MessageID。
public List<Message> listAllMessages(Gmail service, String userId
) throws IOException {
ListMessagesResponse response = service.users().messages().list(userId).execute();
if (response == null || response.isEmpty())
return null;
List<Message> messages = new ArrayList<Message>();
messages.addAll(response.getMessages());
int totalMsgs = messages.size();
Message message;
if (totalMsgs > 0) {
for (int i = 0; i < totalMsgs; i++) {
message = messages.get(i); //message.getId() is what you want
}
}
return messages;
}
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