关于含RecyclerView的fragment来回切换时页面自动滑动到底部的解决方法

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     android:orientation="vertical">
 6     <View
 7         android:layout_width="match_parent"
 8         android:layout_height="2px"
 9         android:background="#bfbfbf"
10         android:focusable="true"
11         android:focusableInTouchMode="true"/>
12     <android.support.v7.widget.RecyclerView
13         android:layout_width="match_parent"
14         android:layout_height="match_parent"
15         android:paddingRight="8dp"
16         android:paddingLeft="8dp"
17         android:fadingEdge="none">
18     </android.support.v7.widget.RecyclerView>
19 </LinearLayout>