修改部分UI

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

@@ -235,6 +235,7 @@
                     app:layout_constraintTop_toTopOf="@+id/view_title_line_stu_comment" />
 
                 <RatingBar
+                    android:isIndicator="true"
                     android:id="@+id/rating_bar_for_student"
                     style="@style/HomeRatingBar"
                     android:layout_width="wrap_content"

teacher/src/main/res/layout/activity_sparring_course_detail_layout.xml

@@ -260,6 +260,7 @@
                     app:layout_constraintTop_toTopOf="@+id/view_title_line_stu_comment" />
 
                 <RatingBar
+                    android:isIndicator="true"
                     android:id="@+id/rating_bar_for_student"
                     style="@style/HomeRatingBar"
                     android:layout_width="wrap_content"