// First initiate the SlidingDrawer, simpleSlidingDrawer1 
// is the id of SlidingDrawer defined in activity_main.xml
// Here using simpleSlidingDrawer1 as object and 
// this is used throughout next
SlidingDrawer simpleSlidingDrawer1 = (SlidingDrawer) findViewById (R.id.simpleSlidingDrawer1);

// important methods are discussed here

// open the Sliding Drawer
simpleSlidingDrawer1.open(); 

// close the Sliding Drawer
simpleSlidingDrawer1.close(); 

// open the Sliding Drawer but with an animation
simpleSlidingDrawer1.animateOpen(); 

// close the Sliding Drawer but with an animation
simpleSlidingDrawer1.animateClose();

// check whether the slider is opened or not and 
// depends upon that we can do rest of the calculations
Boolean isSliderSrawerOpen = simpleSlidingDrawer1.isOpened(); 

// If we do not want touch events to occur, set this
simpleSlidingDrawer1.lock(); 

// In order to process the touch events
// if accidentally locked or due to some requirement got locked
simpleSlidingDrawer1\. unlock();

simpleSlidingDrawer1.setOnDrawerCloseListener(
    new SlidingDrawer.OnDrawerCloseListener() {
        @Override public void onDrawerClosed()
        {
            // Suppose you can give a toast message or when
            // drawer closes need to navigate to another
            // event etc., So required steps are done here
        }
    });

simpleSlidingDrawer1.setOnDrawerOpenListener(
    new SlidingDrawer.OnDrawerOpenListener() {
        @Override public void onDrawerOpened()
        {
            // As per your requirement, add code here.
        }
    });

simpleSlidingDrawer1.setOnDrawerScrollListener(
    new SlidingDrawer.OnDrawerScrollListener() {
        @Override public void onScrollStarted()
        {
            // Scroll is necessary for large data to view,
            // so necessary code is required here
        }

        @Override public void onScrollEnded()
        {
            // add code here for the scroll ended.
        }
    });

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/layout"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">

    <SlidingDrawer
        android:id="@+id/simpleSlidingDrawer1"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:content="@+id/content1"
        android:handle="@+id/handle1"
        android:orientation="horizontal"
        android:rotation="180">

        <!-- Let us define the button -->
        <Button
            android:id="@id/handle1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="#0f0"
            android:rotation="270"
            android:text="Open"
            android:textColor="#fff" />

        <!-- layout for the content of the SlidingDrawer -->
        <LinearLayout
            android:id="@id/content1"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:orientation="horizontal"
            android:rotation="180">

            <!-- DEFINE ALL YOUR CONTENT,WIDGETS HERE 
                 WHICH YOU WANT TO ADD IN SLIDING DRAWER LAYOUT. -->
            <ListView
                android:id="@+id/simpleListView1"
                android:layout_width="fill_parent"
                android:layout_height="fill_parent" />

        </LinearLayout>
    </SlidingDrawer>
</LinearLayout>

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

    <!-- TextView for the list item -->
    <TextView
        android:id="@+id/name1"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:padding="10dp"
        android:textColor="#0f0" />
</LinearLayout>

import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.SlidingDrawer;
import androidx.appcompat.app.AppCompatActivity;

public class MainActivity extends AppCompatActivity {

    String[] nameArray = {"Bitcoin", "Ethereum", "Litecoin", "IOTA", "Libra", "Monero", "EOS",
                          "NEO", "ATOM", "Tether", "XRP", "Bitcoin Cash", "Binance Coin", "REN",
                          "Bitcoin SV", "USD Coin", "Stellar", "Tezos", "Dash", "Zcash"};

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        // initiate the SlidingDrawer
        SlidingDrawer simpleSlidingDrawer1 = (SlidingDrawer) findViewById(R.id.simpleSlidingDrawer1);

        // initiate a Button which is used for 
        // handling the content of SlidingDrawer
        // We can able to have open and close 
        // methods for this handleButton
        final Button handleButton = (Button) findViewById(R.id.handle1);

        // initiate the ListView that is used for content of Sl.idingDrawer
        // adapter for the list view. As all are text, 
        // it is defined as ArrayAdapter<String>
        // Your cryptocurrency items are going to be displayed via this
        // view using below cryptocurrency ArrayAdapter
        ListView simpleListView1 = (ListView) findViewById(R.id.simpleListView1);

        // Below syntax is for defining ArrayAdapter
        ArrayAdapter<String> cryptocurrencyArrayAdapter = new ArrayAdapter<String>(getApplicationContext(),
                R.layout.list_item, R.id.name1, nameArray);

        // set an adapter to fill the data in the ListView
        simpleListView1.setAdapter(cryptocurrencyArrayAdapter);

        // implement setOnDrawerOpenListener event,
        // name itself suggests that
        // we need to write code for drawer opening
        simpleSlidingDrawer1.setOnDrawerOpenListener(new SlidingDrawer.OnDrawerOpenListener() {
            @Override
            public void onDrawerOpened() {
                // When drawer is opened, we may need 
                // to indicate user that close option
                // is available, so just setting text to close. 
                // But required functionality can be done here
                handleButton.setText("Close");
            }
        });

        // implement setOnDrawerCloseListener event,
        // name itself suggests we need to write close events
        simpleSlidingDrawer1.setOnDrawerCloseListener(new SlidingDrawer.OnDrawerCloseListener() {
            @Override
            public void onDrawerClosed() {
                // if close is done, we should have the option to open.
                // according to the requirement, 
                // carry out necessary steps for close
                handleButton.setText("Open");
            }
        });
    }
}