Don't say anything but the picture above

I'm using a third party that relies on PullToRefresh to do this
This is just a listening method.
First inject dependencies:

//Refresh pullToRefresh
    compile 'com.jwenfeng.pulltorefresh:library:1.0.3'

Then layout:

    <com.jwenfeng.library.pulltorefresh.PullToRefreshLayout
        android:id="@+id/pullToRefresh"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        //Here you can define your requirements controls (for example, listView,GridView...)
        //My list is recyclerView (if you need to inject dependencies to use recyclerView)

        <android.support.v7.widget.RecyclerView
            android:id="@+id/recView"
            android:layout_width="match_parent"
            android:layout_height="match_parent"></android.support.v7.widget.RecyclerView>

    </com.jwenfeng.library.pulltorefresh.PullToRefreshLayout>

Then initialize the control and set up the monitor in MainActivity

//Initialize/Find Control/Get Resource ID
        PullToRefreshLayout ptr = (PullToRefreshLayout) findViewById(R.id.pullToRefresh);
        //Set up listener setRefreshListener
        //Then generate refresh and load overrides
        ptr.setRefreshListener(new BaseRefreshListener() {
            @Override
            //Refresh Method
            public void refresh() {
                //Write your drop-down refresh business requirements logic here
                if (list != null) {
                    initNet();
                }
                //Don't forget to turn off the refresh effect
                ptr.finishRefresh();
            }

            @Override
            //Load more methods
            public void loadMore() {
            //Write your home's business needs logic here
                if (list != null) {
                    list.addAll(list.size(), list);
                    recAdapter.notifyDataSetChanged();
                }
                //Don't forget to turn off loading for more effects
                ptr.finishLoadMore();
            }
        });

That's OK.

Emphasize a few points:
1 My Android studio is version 2.3.3, v7 for SDK.....26. +
2 For code simplicity, I didn't move the package, so you can guide it yourself
3If you access the network: Don't forget to add network permissions in AndroidManifest

<uses-permission android:name="android.permission.INTERNET"/>