sdk添加删除会话接口

sdk/src/main/java/cn/wildfirechat/sdk/Main.java

@@ -762,6 +762,17 @@ public class Main {
             } else {
                 System.out.println("Get message delivery failure");
             }
+
+            conversation = new Conversation();
+            conversation.setTarget("user1");
+            conversation.setType(ProtoConstants.ConversationType.ConversationType_Private);
+            conversation.setLine(0);
+            IMResult<Void> clearConversationResult = MessageAdmin.clearConversation("user2", conversation);
+            if (clearConversationResult != null && clearConversationResult.getErrorCode() == ErrorCode.ERROR_CODE_SUCCESS) {
+                System.out.println("clear conversation success");
+            } else {
+                System.out.println("clear conversation failure");
+            }
         }
 
         List<String> multicastReceivers = Arrays.asList("user2", "user3", "user4");

sdk/src/main/java/cn/wildfirechat/sdk/MessageAdmin.java

@@ -51,6 +51,14 @@ public class MessageAdmin {
         return AdminHttpUtils.httpJsonPost(path, updateMessageContentData, Void.class);
     }
 
+    public static IMResult<Void> clearConversation(String userId, Conversation conversation) throws Exception {
+        String path = APIPath.Conversation_Delete;
+        InputUserConversation input = new InputUserConversation();
+        input.userId = userId;
+        input.conversation = conversation;
+        return AdminHttpUtils.httpJsonPost(path, input, Void.class);
+    }
+
     /**
      * 获取单条消息。如果想要更多消息的读取，可以直接读取IM服务的数据库。
      * @param messageUid