我有一個(gè) JSON 數(shù)組，因?yàn)槲倚枰褂?ParentCommentID 進(jìn)行匹配計(jì)數(shù)，并使用文本視圖將數(shù)據(jù)解析到 recyclerview 中，同時(shí)計(jì)數(shù)我只得到一個(gè)位置的數(shù)字計(jì)數(shù)，其他項(xiàng)目也一樣，任何幫助。{ "d": { "results": [ { "__metadata": { "id": "e7433825-6771-4f5e-96c7-c4d2674d7764", "uri": "", "etag": "\"2\"", "type": "SP.Data.InquiryDiscussionsListListItem" }, "Author": { "__metadata": { "id": "f064775c-6161-4bdb-9f4d-8bc6a898d218", "type": "SP.Data.UserInfoItem" }, "Title": "Submitter1" }, "Id": 1501, "ID": 1501, "Title": null, "Created": "2019-06-06T04:15:17Z", "ParentCommentID": "1439", "Comment": "<div class=\"ExternalClass8C333A77B6564A53BED74CA1BA2D2A10\"> reply add for 009</div>", "CommentType": null, "CommentDocumentName": null, "AppID": "1083", "Role": "Customer" }, { "__metadata": { "id": "e92f708f-93dc-4587-8c4f-5518ed24f360", "uri": "", "etag": "\"2\"", "type": "SP.Data.InquiryDiscussionsListListItem" }, "Author": { "__metadata": { "id": "209d2d9a-bb07-4064-aaa0-231ad881a80f", "type": "SP.Data.UserInfoItem" }, "Title": "Submitter1" }, "Id": 1500, "ID": 1500, "Title": null, "Created": "2019-06-06T04:14:55Z", "ParentCommentID": "1439", "Comment": "<div class=\"ExternalClass44B1A0BB4D314C57BEE20141BFF10491\">comment add for 009</div>", "CommentType": null, "CommentDocumentName": null, "AppID": "1083", "Role": "Customer" }, { "__metadata": { "id": "ec112002-3132-4bc1-8f85-03fbd9fda11d", "uri": "", "etag": "\"2\"", "type": "SP.Data.InquiryDiscussionsListListItem" }, } ] }}例如 id 1439，有兩個(gè)ParentCommentID，所以在這種情況下，對于 id1439應(yīng)該有兩條評論，我試圖在我的 recyclerview 適配器中使用 for 但它不起作用。
1 回答
吃雞游戲
TA貢獻(xiàn)1829條經(jīng)驗(yàn) 獲得超7個(gè)贊
我認(rèn)為您需要遍歷結(jié)果列表，當(dāng)您找到具有父評論的結(jié)果時(shí)，您進(jìn)入地圖，獲取父評論，將其計(jì)數(shù)加一并將其粘貼回地圖中：
假設(shè)您的 Result 類是這樣的：
class Result {
private String id;
private String parentCommentID;
public Result(String id, String parentCommentID) {
this.id = id;
this.parentCommentID = parentCommentID;
}
// GETTERS/SETTERS
}
你有一個(gè)包含 3 個(gè)結(jié)果的討論列表
discussionsList = Arrays.asList(
new Result("1439", null),
new Result("1500", "1439"),
new Result("1801", "1439")
);
像你的情況一樣， 1439 沒有父母， 1500 和 1501 都有 1439 作為父母
然后你可以做這樣的事情：
Map<String, Integer> commentsCountMap = new HashMap<>();
// Loop through the discussion Map
for(Result res : discussionsList) {
String parentCommentId = res.getParentCommentID();
// If the Result has a parent comment
if(parentCommentId != null) {
// get the count for this parent comment (default to 0)
int nbCommentsForParent = commentsCountMap.getOrDefault(parentCommentId, 0);
// increment the count
nbCommentsForParent++;
// Update the Map with the new count
commentsCountMap.put(parentCommentId, nbCommentsForParent);
}
}
System.out.println(commentsCountMap);
這輸出
{1439=2}
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