fix 介绍过长时下拉冲突

app/src/main/res/layout/activity_book_info.xml

@@ -35,7 +35,7 @@
             android:layout_height="160dp"
             android:layout_marginTop="8dp"
             app:layout_constraintTop_toBottomOf="@+id/title_bar"
-            app:layout_constraintBottom_toTopOf="@@+id/scroll_view" >
+            app:layout_constraintBottom_toTopOf="@+id/scroll_view" >
 
             <RelativeLayout
                 android:layout_width="match_parent"