优化

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

@@ -10,7 +10,7 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         app:layout_constraintTop_toTopOf="parent"
-        app:attachToActivity="false"
+        app:contentInsetStartWithNavigation="0dp"
         app:contentLayout="@layout/view_search" />
  
     <!--path-->