修改bug

student/src/main/java/com/cooleshow/student/ui/work/HomeWorkDetailActivity.java

@@ -259,9 +259,11 @@ public class HomeWorkDetailActivity extends BaseMVPActivity<ActivityHomeworkDeta
         if (bean.submitHomework == CourseConstants.COURSE_HOMEWORK_STU_SUBMIT) {
             //学员已提交课后作业
             addVideoThumbnailView(bean.studentAttachments);
+            viewBinding.csTeacherReply.setVisibility(View.VISIBLE);
         } else {
             //学员未提交课后作业
             homeworkVideoData.add(PracticeVideoWorkBean.defaultInstance());
+            viewBinding.csTeacherReply.setVisibility(View.GONE);
         }
         if (mVideoWorkAdapter != null) {
             mVideoWorkAdapter.notifyDataSetChanged();

student/src/main/res/layout/activity_homework_detail_layout.xml

@@ -300,6 +300,7 @@
 
 
             <androidx.constraintlayout.widget.ConstraintLayout
+                android:id="@+id/cs_teacher_reply"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:layout_marginTop="12dp"