V2TimMessageSearchParam
(Details). When searching for messages, the SDK will execute different search logics based on the object settings.V2TIMMessageSearchParam
parameters are as described below:Parameter | Definition | Description |
keywordList | Keyword list | It can contain up to five keywords. When the message sender and the message type are not specified, the keyword list must be set; in other cases, it can be left empty. |
keywordListMatchType | Match type of the keyword list | It can be set to OR or AND . Valid values: V2TIM_KEYWORD_LIST_MATCH_TYPE_OR (default), V2TIM_KEYWORD_LIST_MATCH_TYPE_AND. |
senderUserIDList | userID who sent messages | It can contain up to five user IDs. |
messageTypeList | Set of the message types to be searched for | If it is left empty, messages of all the supported types (excluding V2TIMFaceElem and V2TIMGroupTipsElem ) will be searched for. For more information on the values of other types, see V2TIMElemType (Details). |
conversationID | Whether to search all the conversations or the specified conversation | If it is left empty, all the conversations will be searched; otherwise, the specified conversation will be searched. |
searchTimePosition | Start time for the search | It is 0 by default, indicating to search from the current time point. It is a UTC timestamp in seconds. |
searchTimePeriod | A past period of time starting from the start time | It is 0 by default, indicating not to limit the time range. It is in seconds. 24x60x60 represents a past day. |
pageIndex | Page number | It is used to display the search result by page. 0 indicates the first page. |
pageSize | Number of result items per page | It is used to display the search result by page. Set it to 0 if you don't want paged display. If too many result items are pulled at a time, a performance problem may occur. |
V2TIMMessageSearchResult
(Details). The parameters are as described below:Parameter | Definition | Description |
totalCount | Total number of the search result items | If the specified conversation is searched, the total number of messages that meet the search criteria will be returned. If all the conversations are searched, the total number of the conversations to which messages that meet the search criteria belong will be returned. |
messageSearchResultItems | Match type of the keyword list | If the specified conversation is searched, only the result items in the conversation will be included in the returned result list. If all the conversations are searched, messages that meet the search criteria will be grouped by conversation ID and returned by page. |
messageSearchResultItems
is a list that contains the V2TIMMessageSearchResultItem
objects (Details). The parameters are as described below:Parameter | Definition | Description |
conversationID | Conversation ID | – |
messageCount | Number of messages | Number of messages that meet the search criteria and are found in the current conversation. |
messageList | List of messages that meet the search criteria | If the specified conversation is searched, messageList is the list of messages in the conversation that meet the search criteria.If all the conversations are searched, messageList may display either of the following results:If the number of matched messages in a conversation is greater than 1, messageList is empty, and you can display "{messageCount} relevant records" on the UI.If the number of matched messages in a conversation is equal to 1, messageList is the matched message, and you can display it on the UI and highlight the matched keyword. |
searchLocalMessages
(Details) to search for local messages of the IM SDK.conversationID
in V2TIMMessageSearchParam
empty (null
/nil
) or unspecified.// Search for local messages by keywordV2TimValueCallback<V2TimMessageSearchResult> searchMessage = await messageManager.searchLocalMessages(searchParam: V2TimMessageSearchParam(keywordList: ['Keyword 1'],pageIndex: 0,pageSize: 10,type: 1));
searchLocalMessages
(Details) to search for local messages of the IM SDK.// Search for local messages by conversation ID and keywordV2TimValueCallback<V2TimMessageSearchResult> searchMessage = await messageManager.searchLocalMessages(searchParam: V2TimMessageSearchParam(keywordList: ['Keyword 1'],pageIndex: 0,pageSize: 10,type: 1,conversationID:'conversationID'));
Figure 1. Chat history | Figure 2. More chat history | Figure 3. Messages in the specified conversation |
| | |
V2TIMMessageSearchParam
.conversationID
to null
, which indicates to search all the conversations.pageIndex
to 0
, which indicates the first page of the conversations to which the messages found belong.pageSize
to 3
, which indicates the number of the latest conversations to be returned. Generally, the latest three conversations will be displayed on the UI.V2TIMMessageSearchResult
.totalCount
indicates the number of all the conversations to which the matched messages belong.messageSearchResultItems
list contains the information of the latest three conversations (that is, the pageSize
parameter). Here, messageCount
of the V2TIMMessageSearchResultItem
element indicates the total number of messages found in the current conversation.messageList
is empty, and you can display "4 relevant records" on the UI. Here, 4
is messageCount
.messageList
is the matched message, and you can display it on the UI and highlight the search keyword, for example, "test" in the above figure.// Search for messages of a specified type through `messageTypeList`V2TimValueCallback<V2TimMessageSearchResult> searchMessage = await messageManager.searchLocalMessages(searchParam: V2TimMessageSearchParam(keywordList: ['Keyword 1'],pageIndex: 0,pageSize: 10,type: 1,conversationID: "",messageTypeList: [MessageElemType.V2TIM_ELEM_TYPE_TEXT]));
createCustomMessage(data)
API (Details) to create a custom message, the message cannot be found, as the SDK will save it as a binary data stream.createCustomMessage(data, description, extension)
API dart to create and send the custom message and put the text to be searched for in the description
parameter.description
parameter is set, the custom message will be pushed offline, and the parameter content will be displayed on the notification bar.
If you don't need offline push, you can use the disablePush
in the V2TIMOfflinePushInfo
parameter of the sendMessage
API (Details).desc
in the V2TIMOfflinePushInfo
parameter to set the push content.fileName
parameter when calling createFileMessage
to create a file message, fileName
will be used as the content to be searched for and match the search keyword. If fileName
is not set, the SDK will automatically extract the filename from filePath
as the content to be searched for.
Both fileName
and filePath
will be saved in the local database and on the server, which can be searched for after being pulled on another device.fileName
, and a thumbnail or duration is usually displayed on the UI; in this case, keywordList
is invalid.
To enable a user to find such messages, you can specify messageTypeList
as V2TIM_ELEM_TYPE_IMAGE
/V2TIM_ELEM_TYPE_SOUND
/V2TIM_ELEM_TYPE_VIDEO
for categorized search.
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