开发中常常用到列表下拉刷新功能，运用SmartRefreshLayout+RecyclerView可以简单实现此功能且界面友好

效果图：

image.png

首先添加依赖：

implementation 'com.scwang.smartrefresh:SmartRefreshLayout:1.1.0-alpha-20'
implementation 'com.android.support:recyclerview-v7:28.+'

ShowPbxxList.java

public class ShowPbxxList extends BaseActivity {
    private RefreshLayout refreshLayout;
    private RecyclerView recyclerView;
    PbxxRecycleAdapter adapter;
    List<ZxdBean> list1 = new ArrayList();

    @Override
    protected int setLayout() {
        return R.layout.activity_pbxx;
    }

    @Override
    protected boolean isTitle() {
        return true;
    }

    @Override
    protected void initView() {
        refreshLayout = findViewById(R.id.refreshLayout);
        recyclerView = findViewById(R.id.recyclerView);
        LinearLayoutManager layoutManager = new LinearLayoutManager(this);
        recyclerView.setLayoutManager(layoutManager);
        refreshLayout.setEnableLoadMore(false);//禁止上滑刷新
        refreshLayout.setOnRefreshListener(new OnRefreshListener() {
            @Override
            public void onRefresh(@NonNull RefreshLayout refreshLayout) {
                doRefresh();
            }
        });
    }

    @Override
    protected void readInstanceState(Bundle savedInstanceState) {

    }

    @Override
    protected void startView() {
        isbacket(true);
        setContentTitle("排班信息");
        refreshLayout.autoRefresh();//启动时自动刷新
    }

    private void doRefresh() {
       // 请求数据;
    }
}

页面布局 activity_pbxx.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <include layout="@layout/base_title" />


    <com.scwang.smartrefresh.layout.SmartRefreshLayout
        android:id="@+id/refreshLayout"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <com.scwang.smartrefresh.layout.header.ClassicsHeader
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />

        <android.support.v7.widget.RecyclerView
            android:id="@+id/recyclerView"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="@color/colorGrey2"
            android:overScrollMode="never" />

        <com.scwang.smartrefresh.layout.footer.ClassicsFooter
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:srlClassicsSpinnerStyle="Translate" />
    </com.scwang.smartrefresh.layout.SmartRefreshLayout>
</LinearLayout>

上拉下滑系统自带动画效果可以详看下面这个地址
http://www.cocoachina.com/articles/32556