android问题总结:
1. android:focusableInTouchMode="true" 属性: 控制 子view不获取焦点;
<android.support.v4.widget.SwipeRefreshLayout
android:id="@+id/swipe_refresh"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:focusableInTouchMode="true">
<android.support.v7.widget.RecyclerView
android:id="@+id/recy_college"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:scrollbars="none">
</android.support.v7.widget.RecyclerView>
</android.support.v4.widget.SwipeRefreshLayout>