add custom message example

example/lib/chat.dart

@@ -7,6 +7,7 @@ import 'package:wukongimfluttersdk/proto/proto.dart';
 import 'package:wukongimfluttersdk/type/const.dart';
 import 'package:wukongimfluttersdk/wkim.dart';
 
+import 'custom_message.dart';
 import 'msg.dart';
 
 class ChatPage extends StatelessWidget {
@@ -365,9 +366,12 @@ class ChatListDataState extends State<ChatList> {
                       _textEditingController.text = '';
                       Setting setting = Setting();
                       setting.receipt = 1; //开启回执
-                      WKTextContent text = WKTextContent(content);
+                      // WKTextContent text = WKTextContent(content);
+                      CustomMsg customMsg = CustomMsg(content);
                       WKIM.shared.messageManager.sendMessageWithSetting(
-                          text, WKChannel(channelID, channelType), setting);
+                          customMsg,
+                          WKChannel(channelID, channelType),
+                          setting);
                       // WKImageContent imageContent = WKImageContent(100, 200);
                       // imageContent.localPath = 'addskds';
                       // WKIM.shared.messageManager.sendMessage(

example/lib/custom_message.dart

@@ -0,0 +1,23 @@
+import 'package:wukongimfluttersdk/model/wk_message_content.dart';
+
+class CustomMsg extends WKMessageContent {
+  var name = "";
+  CustomMsg(this.name) {
+    contentType = 12;
+  }
+  @override
+  Map<String, dynamic> encodeJson() {
+    return {"name": name};
+  }
+
+  @override
+  WKMessageContent decodeJson(Map<String, dynamic> json) {
+    name = json["name"];
+    return this;
+  }
+
+  @override
+  String displayText() {
+    return "我是自定义消息：$name";
+  }
+}

example/lib/im.dart

@@ -7,6 +7,7 @@ import 'package:wukongimfluttersdk/model/wk_voice_content.dart';
 import 'package:wukongimfluttersdk/type/const.dart';
 import 'package:wukongimfluttersdk/wkim.dart';
 
+import 'custom_message.dart';
 import 'http.dart';
 
 class IMUtils {
@@ -21,6 +22,9 @@ class IMUtils {
       WKIM.shared.connectionManager.connect();
       initListener();
     }
+    // 注册自定义消息
+    WKIM.shared.messageManager
+        .registerMsgContent(12, (data) => CustomMsg("").decodeJson(data));
     return result;
   }
 

pubspec.yaml

@@ -19,7 +19,7 @@ version: 1.2.4
 homepage: https://github.com/WuKongIM/WuKongIMFlutterSDK
 
 environment:
-  sdk: '>=3.0.6 <4.0.0'
+  sdk: '>=2.0.0 <4.0.0'
 
 # Dependencies specify other packages that your package needs in order to work.
 # To automatically upgrade your package dependencies to the latest versions