Monday, December 18, 2023

Q:- Write an android code to turn ON/OFF the Wi-Fi

 activity.xml

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

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:layout_margin="16dp"

    android:gravity="center"

    android:orientation="vertical">


    <ToggleButton

        android:id="@+id/toggleButton"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:checked="false"

        />


    <TextView

        android:id="@+id/textView"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_marginTop="16dp"

        />


</LinearLayout>


activity.java


import androidx.appcompat.app.AppCompatActivity;

import android.content.Context;

import android.net.wifi.WifiManager;

import android.os.Bundle;

import android.widget.CompoundButton;

import android.widget.TextView;

import android.widget.ToggleButton;



public class MainActivity extends AppCompatActivity {


    ToggleButton toggleButton;

    TextView textView;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        toggleButton = (ToggleButton) findViewById(R.id.toggleButton);

        textView = (TextView) findViewById(R.id.textView);


       

        toggleButton.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {

            @Override

            public void onCheckedChanged(CompoundButton compoundButton, boolean checked) {

                if (checked) {

                    textView.setText("WiFi is ON");

                    WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);

                    wifi.setWifiEnabled(true);

                } else {

                    textView.setText("WiFi is OFF");

                    WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);

                    wifi.setWifiEnabled(false);

                }

            }

        });


        if (toggleButton.isChecked()) {

            textView.setText("WiFi is ON");

            WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);

            wifi.setWifiEnabled(true);

        } else {

            textView.setText("WiFi is OFF");

            WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);

            wifi.setWifiEnabled(false);

        }

    }


    }

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