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dependencies {
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    implementation "androidx.swiperefreshlayout:swiperefreshlayout:1.1.0"
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}

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<!-- ... -->
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<androidx.swiperefreshlayout.widget.SwipeRefreshLayout
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    xmlns:android="http://schemas.android.com/apk/res/android"
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    android:id="@+id/swiperefresh"
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    android:layout_width="match_parent"
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    android:layout_height="match_parent">
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    <androidx.recyclerview.widget.RecyclerView
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        android:id="@android:id/list"
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        android:layout_width="match_parent"
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        android:layout_height="match_parent" />
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</androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
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<!-- ... -->

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public class TimelineActivity extends Activity {
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    private SwipeRefreshLayout swipeContainer;
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    @Override
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    protected void onCreate(Bundle savedInstanceState) {
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        super.onCreate(savedInstanceState);
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        // Only ever call `setContentView` once right at the top
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        setContentView(R.layout.activity_main);
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        // Lookup the swipe container view
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        swipeContainer = (SwipeRefreshLayout) findViewById(R.id.swipeContainer);
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        // Setup refresh listener which triggers new data loading
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        swipeContainer.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
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            @Override
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            public void onRefresh() {
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                // Your code to refresh the list here.
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                // Make sure you call swipeContainer.setRefreshing(false)
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                // once the network request has completed successfully.
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                refreshData();
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            }
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        });
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        // Configure the refreshing colors
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        swipeContainer.setColorSchemeResources(android.R.color.holo_blue_bright,
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                android.R.color.holo_green_light,
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                android.R.color.holo_orange_light,
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                android.R.color.holo_red_light);
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    }
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}