how to check internet connection in kotlin programmatically

 how to check internet connection in kotlin programmatically 

In this Article Today Learn how to check internet connection in kotlin programmatically . kotlin is aprogramming langauge follow the Method:

  check_connection.setOnClickListener {

            connectivity = context.getSystemService(Service.CONNECTIVITY_SERVICE)

                    as ConnectivityManager

            if ( connectivity != null)

            {

                info = connectivity!!.activeNetworkInfo

                if (info != null)

                {

                    if (info!!.state == NetworkInfo.State.CONNECTED)

                    {

                        Toast.makeText(context, "CONNECTED", Toast.LENGTH_LONG).show()

                    }

                }

                else

                {

                    Toast.makeText(context, "NOT CONNECTED", Toast.LENGTH_LONG).show()

                }

            }

        }

    }

Modify AndroidManifest.xml:

 <uses-permission android:name="android.permission.INTERNET"/>

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/

full Source Code Provide Follow this Steps:

1.Open Android Studio Create a New Project:

2.Select A Empty Activity and Cick Next

3.Type a Project Name and Select a 'Kotlin' and Click Finsih:

follow the Full Source Code how to check internet connection in kotlin programmatically:

1.MainActivity.kt:

package com.akash.internetconnection

import android.app.Service

import android.net.ConnectivityManager

import android.net.NetworkInfo

import androidx.appcompat.app.AppCompatActivity

import android.os.Bundle

import android.widget.Toast

import kotlinx.android.synthetic.main.activity_main.*

class MainActivity : AppCompatActivity() {

    var context = this

    var connectivity : ConnectivityManager? = null

    var info : NetworkInfo? = null

    override fun onCreate(savedInstanceState: Bundle?)

    {

        super.onCreate(savedInstanceState)

        setContentView(R.layout.activity_main)

        check_connection.setOnClickListener {

            connectivity = context.getSystemService(Service.CONNECTIVITY_SERVICE)

                    as ConnectivityManager

            if ( connectivity != null)

            {

                info = connectivity!!.activeNetworkInfo

                if (info != null)

                {

                    if (info!!.state == NetworkInfo.State.CONNECTED)

                    {

                        Toast.makeText(context, "CONNECTED", Toast.LENGTH_LONG).show()

                    }

                }

                else

                {

                    Toast.makeText(context, "NOT CONNECTED", Toast.LENGTH_LONG).show()

                }

            }

        }

    }

}

2.activity_main.xml:

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

<androidx.constraintlayout.widget.ConstraintLayout 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">

    <Button

        android:id="@+id/check_connection"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_centerInParent="true"

        android:layout_marginLeft="19dp"

        android:layout_marginTop="15dp"

        android:layout_marginRight="19dp"

        android:background="@color/colorPrimary"

        android:padding="4dp"

        android:text="CHECK CONNECTION"

        android:textColor="#FFFFFF"

        android:textSize="20sp" />

</androidx.constraintlayout.widget.ConstraintLayout>

3.AndroidManifest.xml:

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

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

    package="com.akash.internetconnection">

    <uses-permission android:name="android.permission.INTERNET"/>

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

    <application

        android:allowBackup="true"

        android:icon="@mipmap/ic_launcher"

        android:label="@string/app_name"

        android:roundIcon="@mipmap/ic_launcher_round"

        android:supportsRtl="true"

        android:theme="@style/AppTheme">

        <activity android:name=".MainActivity">

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

    </application>

</manifest>

4.color.xml:

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

<resources>

    <color name="colorPrimary">#6200EE</color>

    <color name="colorPrimaryDark">#3700B3</color>

    <color name="colorAccent">#03DAC5</color>

</resources>

5.strings.xml:

<resources>

    <string name="app_name">Internet Connection</string>

</resources>

6.Output: