更新 小程序端消息输入框，暂不支持富文本输入（包括：@用户、图片表情包等，@用户后续会支持）

components/uni-im-editor/uni-im-editor.vue

 <template>
-  <view class="uni-im-editor-box">
-    <div class="uni-im-editor" contenteditable="true" ></div>
-
-    <!-- 与rmd通讯专用 -->
-    <view :change:prop="rdm.$callMethod" :prop="callRmdParam"></view>
+  <view class="uni-im-editor-box">
+    
+    <!-- #ifdef MP -->
+      <textarea class="uni-im-editor-mp" v-model="textareaValue" @input="oninput" auto-height :maxlength="maxlength"
+        :show-confirm-bar="false" :adjust-position="false" @blur="lastCursor = $event.detail.cursor"
+      ></textarea>
+    <!-- #endif -->
+    
+    <!-- #ifndef MP -->
+      <div class="uni-im-editor" contenteditable="true" ></div>
+      <!-- 与rmd通讯专用 -->
+      <view :change:prop="rdm.$callMethod" :prop="callRmdParam"></view>
+    <!-- #endif -->
+    
   </view>
 </template>
 
@@ -13,7 +22,11 @@
     emits: ["input", "confirm"],
     data() {
       return {
-        callRmdParam: []
+        callRmdParam: [],
+        // #ifdef MP
+        "textareaValue":this.modelValue,
+        lastCursor:this.modelValue.length
+        // #endif
       }
     },
     props: {
@@ -32,7 +45,24 @@
     },
     mounted() {
       // 与rmd通讯专用
-      this.callRmd = async (funcName, ...params) => {
+      this.callRmd = async (funcName, ...params) => {
+        // #ifdef MP
+        switch (funcName){
+          case '$setContent':
+            this.textareaValue = params[0]
+            break;
+          case '$addHtmlToCursor':
+            // 在第lastCursor位置添加内容
+            setTimeout(()=>{
+              this.textareaValue = this.textareaValue.slice(0,this.lastCursor) + params[0] + this.textareaValue.slice(this.lastCursor)
+            },300)
+            break;
+          default:
+            console.error('小程序暂不支持与rmd通讯',funcName,params)
+            break;
+        }
+        return
+        // #endif
         this.callRmdParam = []
         this.$nextTick(() => {
           return new Promise((resolve, reject) => {
@@ -213,13 +243,26 @@
       // #endif
     },
     methods: {
-      oninput(e) {
+      oninput(e) {
+        // #ifdef MP
+        let oldValue = this.oninput.oldValue || '';
+        // 当前输入框的值
+        const value = e.detail.value 
+        // 本次输入的数据
+        const data = value.replace(oldValue, '') 
+        this.oninput.oldValue = value
+        e = {
+          data,
+          value
+        }
+        // #endif
+        // console.error('input',e)
         this.$emit('input', e)
       }
     }
   }
 </script>
-
+<!-- #ifndef MP -->
 <script module="rdm" lang="renderjs">
   let uniImEditor,lastFocusNode,lastCursor;
   // #ifdef APP
@@ -251,6 +294,7 @@
       });
       uniImEditor.addEventListener('blur', e => {
         // console.error('###blur', e);
+        setTimeout(this.$refreshLastCursor, 0);
       });
       // 键盘敲左右
       uniImEditor.addEventListener('keydown', e => {
@@ -290,9 +334,12 @@
     methods: {
       // 刷新光标信息
       $refreshLastCursor() {
-        // console.log('刷新光标信息');
         lastCursor = this.$getCursor();
         lastFocusNode = window.getSelection().focusNode;
+        // console.log('刷新光标信息',{
+        //   lastCursor,
+        //   lastFocusNode
+        // });
       },
       $oninput(data){
         
@@ -487,9 +534,16 @@
       }
     }
   }
-</script>
+</script>
+<!-- #endif -->
 
-<style lang="scss" scoped>
+<style lang="scss" scoped>
+  /* #ifdef MP */
+  .uni-im-editor-mp {
+    width: 100%;
+    height: auto;
+  }
+  /* #endif */
   .uni-im-editor {
     min-height: 26px;
     max-height: 110px;

pages/chat/chat.vue

@@ -774,6 +774,13 @@
         }
       },
       showAboutMenber(){
+        if(!this.conversation.group_id){
+          return // 非群聊会话无需@用户的功能
+        }
+        // #ifdef MP
+        return // 小程序暂不支持@用户的功能
+        // #endif
+        
         uni.hideKeyboard()
         this.aboutUserKeyword = '';
         console.log('showAboutMenber',this.memberList[0]);