activity_main.xml

<linearLayout

xmlns:app="http://schemas.android.com/apk/res-auto"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

tools:context="weizexu.baway.com.monthtests.MainActivity">

<android.support.v4.widget.SwipeRefreshLayout

android:id="@+id/sx"

android:layout_width="match_parent"

android:layout_height="match_parent">

<android.support.v4.widget.RecyclerView

android:id="@+id/listviews"

android:layout_width="match_parent"

android:layout_height="match_parent">