SDKsiOS

Search messages

Search messages already synchronized to the iOS SDK’s local storage.

searchLocalMessages:onSuccess:onFailure: searches messages visible to the current user in the iOS SDK's local database. To search a group chat, use its conversationID, not the groupID used when sending messages.

The search scope is limited to messages already synchronized locally by the SDK. Complete server-side search and globally sorted results across conversations are outside this method's scope. A backend search service can return the matching conversationID and clientMsgID values for client navigation.

Create search criteria

A search field normally represents one user-entered query. Trim surrounding whitespace and reject an empty string before creating OIMSearchParam. When the user changes the keyword, message type, or time range, reset the page index to 1 and clear previous results.

NSString *keyword = [searchText stringByTrimmingCharactersInSet:
    NSCharacterSet.whitespaceAndNewlineCharacterSet];
if (keyword.length == 0) {
    [self renderSearchItems:@[] totalCount:0];
    return;
}

OIMSearchParam *param = [OIMSearchParam new];
param.conversationID = conversationID;
param.keywordList = @[keyword];
param.messageTypeList = @[@(OIMMessageContentTypeText)];
param.searchTimePosition = 0;
param.searchTimePeriod = 0;
param.pageIndex = 1;
param.count = 20;

[[OIMManager manager] searchLocalMessages:param
    onSuccess:^(OIMSearchResultInfo * _Nullable result) {
        if (result == nil) {
            [self showSearchError:0 message:@"The search callback returned no result"];
            return;
        }
        [self renderSearchItems:result.searchResultItems
                     totalCount:result.totalCount];
    }
    onFailure:^(NSInteger code, NSString * _Nullable message) {
        [self showSearchError:code message:message ?: @"Failed to search messages"];
    }];

Parameters

Field	Type	Nullable	Description
`conversationID`	`NSString *`	No	The target conversation. An empty string searches across local conversations. For a group chat, still pass its conversation ID rather than `groupID`.
`keywordList`	`NSArray<NSString > `	No	The keyword array. It currently supports one keyword only.
`keywordListMatchType`	`NSInteger`	Value type	A multi-keyword matching field that is currently unused.
`senderUserIDList`	`NSArray * _Nullable`	Yes	A sender-filter field that is currently unused.
`messageTypeList`	`NSArray * _Nullable`	Yes	An optional array of numeric message types, such as text messages.
`searchTimePosition`	`NSInteger`	Value type	The starting time in UTC seconds. `0` starts from the current time.
`searchTimePeriod`	`NSInteger`	Value type	The range in seconds from the starting time. `0` means unrestricted.
`pageIndex`	`NSInteger`	Value type	Pagination within one conversation starts at `1`; ignored for cross-conversation searches.
`count`	`NSInteger`	Value type	The page size within one conversation; ignored for cross-conversation searches.

keywordListMatchType and senderUserIDList do not currently participate in the search. Another application search capability can provide multi-keyword or sender filtering.

Process paginated results

The success callback argument is nullable and must be checked first. A non-null OIMSearchResultInfo contains:

Property	Type	Description
`totalCount`	`NSInteger`	The total number of messages matching the current criteria.
`searchResultItems`	`NSArray<OIMSearchResultItemInfo > `	Results from `searchLocalMessages:`, organized by conversation.
`findResultItems`	`NSArray<OIMSearchResultItemInfo > `	Results dedicated to `findMessageList:`; not the primary field for this operation.

Each OIMSearchResultItemInfo represents one conversation:

Property	Type	Description
`conversationID`	`NSString *`	The ID of the conversation containing the matching messages.
`conversationType`	`OIMConversationType`	The conversation-type enum.
`showName`	`NSString *`	The conversation's display name.
`faceURL`	`NSString *`	The conversation's avatar URL.
`messageCount`	`NSInteger`	The number of matches in this conversation.
`messageList`	`NSArray<OIMMessageInfo > `	The matching messages on the current page for this conversation.

For subsequent pages, keep conversationID, keywordList, message types, and time criteria unchanged and increment only pageIndex. Within the search page, deduplicate messages by the result item's conversationID plus the message's clientMsgID. Do not store selection state by result position.

Handle changes to search results

Use the successful callback result directly as the search snapshot. The query itself does not trigger message events. A matching message can be revoked, deleted, or changed by later synchronization while the page is open. Reuse the shared handlers owned by Receive messages, Delete messages in batches, and Revoke a message; do not register those events again here.

When navigating to a result, locate the target with its conversationID and clientMsgID. If surrounding context is needed, retrieve the message with findMessageList:onSuccess:onFailure: and then load its context.

The search callback, incremental message events, and rerunning the query are separate paths. To refresh the current results, search again with the same criteria and merge by the same conversation and message identifiers.

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Create search criteria

Parameters

Process paginated results

Handle changes to search results

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