no message

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

@@ -2,6 +2,7 @@
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    android:background="@color/greyf4f4f4"
     android:orientation="vertical">
 
     <ImageView