Android自带API ，V4包下面的下拉刷新控件

android.support.v4.widget.SwipeRefreshLayout

SwipeRefreshLayout只能包含一个控件

布局例子：

  <android.support.v4.widget.SwipeRefreshLayout

        android:id="@+id/swipeRefreshLayout"

        android:layout_width="match_parent"

        android:layout_height="match_parent">

        <ListView

            android:id="@+id/listView"

            android:layout_width="match_parent"

            android:layout_height="match_parent">

        </ListView>

    </android.support.v4.widget.SwipeRefreshLayout>

应用例子：

/**

 * SwipeRefreshLayout控件学习

 */

public class RefreshActicity extends AppCompatActivity {

    SwipeRefreshLayout swipeRefreshLayout;

    ListView listView;

    List<Product> list = new ArrayList<>();

    ProductAdapter adapter;

    @Override

    protected void onCreate(@Nullable Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_refresh);

        swipeRefreshLayout = findViewById(R.id.swipeRefreshLayout);

        listView = findViewById(R.id.listView);

        //获取数据

        initData();

        //设置适配器

        adapter = new ProductAdapter(this, list);

        listView.setAdapter(adapter);

        //设置下拉进度的背景颜色，默认是白色

        swipeRefreshLayout.setProgressBackgroundColorSchemeResource(android.R.color.white);

        //设置下拉进度的肢体颜色

        swipeRefreshLayout.setColorSchemeResources(R.color.colorAccent, R.color.colorPrimary, R.color.colorPrimaryDark);

        //下拉时触发下拉动画，动画完毕后回调这个方法

        swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {

            @Override

            public void onRefresh() {

                //开始刷新，设置当前为刷新状态（刷新状态会屏蔽掉下拉事件）

                swipeRefreshLayout.setRefreshing(true);

                //耗时操作，比如联网获取数据

                new Handler().postDelayed(new Runnable() {

                    @Override

                    public void run() {

                        list.clear();

                        initData();

                        adapter.notifyDataSetChanged();

                        //加载完数据，设置为不刷新状态，将下拉进度收起来

                        swipeRefreshLayout.setRefreshing(false);

                    }

                }, 2000);

            }

        });

    }

    /**

     * 生成10条List数据

     */

    private void initData() {

        for (int i = 1; i <= 10; i++) {

            Random random = new Random();

            Product product = new Product("100" + i, "testdata", random.nextInt(100));

            list.add(product);

        }

    }

}