Fix:4004 【商城小程序】在互动消息列表回复资讯评论，内容被顶至屏幕之外

(cherry picked from commit 7a44ed3265)

pkg_common/views/message.vue

@@ -71,10 +71,11 @@
        
       </view>
     </view>
-    <view v-if="showBtn" class="v12-align-center v12-justify-center v12-pa-3 v12-white sticky-bottom">
+    <view v-show="showBtn" class="v12-align-center v12-justify-center v12-pa-3 v12-white sticky-bottom" :style="{ bottom: inputBoxBottom + 'px' }">
       <view style="width: 100%">
         <u-textarea
           id="input"
+          fixed
           v-model="content"
           :maxlength="500"
           :maxheight="200"
@@ -87,6 +88,7 @@
             border: '1px solid #f7f7f7',
             borderRadius: '20rpx'
           }"
+          :adjustPosition="false"
           cursorSpacing="85"
           @blur="onBlur"
           @focus="commentInputFocus"
@@ -149,13 +151,32 @@ export default {
       content: '',
       currentComment: {},
       // 光标位置
-      cursorIndex: 0
+      cursorIndex: 0,
+      inputBoxBottom: 0
     }
   },
+  onLoad() {
+    // 监听键盘高度变化
+    uni.onKeyboardHeightChange((res) => {
+      if (res.height) {
+        this.onKeyboardShow(res.height)
+      } else {
+        this.onKeyboardHide()
+      }
+    })
+  },
   onShow() {
     this.fetchList()
   },
   methods: {
+    
+  onKeyboardShow(height) {
+    this.inputBoxBottom = height
+  },
+  onKeyboardHide() {
+      // 处理键盘收起逻辑
+      this.inputBoxBottom = 0
+    },
     toInfo(comment) {
       if(!comment.contentAvailable) {
         // 该内容已删除