Switch (ON / OFF) Button with Examples Android

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent" android:layout_height="match_parent">
    <Switch
        android:id="@+id/switch1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:switchMinWidth="56dp"
        android:layout_marginLeft="100dp"
        android:layout_marginTop="120dp"
        android:text="Switch1:"
        android:checked="true"
        android:textOff="OFF"
        android:textOn="ON"/>

    <Button
        android:id="@+id/getBtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="150dp"
        android:layout_marginTop="100dp"
        android:text="Get" />
</RelativeLayout>

MainActivity.java

package com.example.switchexample;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Switch;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {
    private Switch sw1;
    private Button btnGet;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        sw1 = (Switch)findViewById(R.id.switch1);

        btnGet = (Button)findViewById(R.id.getBtn);
        btnGet.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String str1, str2;
                if (sw1.isChecked()) {
                    str1 = sw1.getTextOn().toString();
                }
                else {
                    str1 = sw1.getTextOff().toString();
                }
                Toast.makeText(getApplicationContext(), "Switch1 -  " + str1 + " \n" ,Toast.LENGTH_SHORT).show();
            }
        });
    }
}