How to make FlashLight 🔦 in android studio

                 FlashLight

Xml Code:

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout 

    xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:app="http://schemas.android.com/apk/res-auto"

    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <ImageButton
        android:id="@+id/toogleButton"
        android:layout_width="120dp"
        android:layout_height="106dp"
        android:layout_centerInParent="true"
        android:backgroundTint="@android:color/transparent"
        android:src="@drawable/flashoff"
        android:scaleType="centerCrop"/>
    
</RelativeLayout>

Java Code:

package com.example.gettoys;

import androidx.annotation.RequiresApi;
import androidx.appcompat.app.AppCompatActivity;

import android.content.Context;
import android.content.pm.PackageManager;
import android.hardware.camera2.CameraAccessException;
import android.hardware.camera2.CameraManager;
import android.os.Build;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageButton;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {
    ImageButton toogleButton;
    boolean hasCameraFlash=false;
    boolean flashOn=false;

    @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        toogleButton=findViewById(R.id.toogleButton);
        hasCameraFlash=getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA_FLASH);

        toogleButton.setOnClickListener(new View.OnClickListener() {
            @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
            @Override
            public void onClick(View view) {
                if(hasCameraFlash){
                    if(flashOn){
                        flashOn=false;
                        toogleButton.setImageResource(R.drawable.flashoff);
                        try {
                            flashLightOff();
                        } catch (CameraAccessException e) {
                            e.printStackTrace();
                        }
                    }
                    else{
                        flashOn=true;
                        toogleButton.setImageResource(R.drawable.flash);
                        try {
                            flashLightOn();
                        } catch (CameraAccessException e) {
                            e.printStackTrace();
                        }
                    }
                }else {
                    Toast.makeText(getApplicationContext(),"No flahLight available on Your Device.",Toast.LENGTH_LONG).show();
                }
            }
        });

    }

    @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
    public void flashLightOn() throws CameraAccessException {
        CameraManager cameraManager=(CameraManager) getSystemService(Context.CAMERA_SERVICE);
        String camerId=cameraManager.getCameraIdList()[0];
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            cameraManager.setTorchMode(camerId,true);
        }
        Toast.makeText(getApplicationContext(), "FlashLight is ON", Toast.LENGTH_SHORT).show();
    }

    @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
    public void flashLightOff() throws CameraAccessException {
        CameraManager cameraManager=(CameraManager) getSystemService(Context.CAMERA_SERVICE);
        String camerId=cameraManager.getCameraIdList()[0];
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            cameraManager.setTorchMode(camerId,false);
        }
        Toast.makeText(getApplicationContext(), "FlashLight is Off", Toast.LENGTH_SHORT).show();
    }

}