Check Network Status – Android Studio Tutorial

In this tutorial we will check internet connection like:

• No internet connection
• Connected with Wifi
• Connected with Mobile Data

Check Network Status

Step 1: Create a new project OR Open your project

Step 2: Add 3 Images to show networks status icons

Step 3: Add ACCESS_NETWORK_STATE permission in AndroidMenifest.xml

Step 4: Code

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.blogspot.atifsoftwares.networconnectionstatus">

    <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>

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <!--network status icon-->
    <ImageView
        android:id="@+id/conStatusIv"
        android:layout_width="120dp"
        android:layout_height="120dp"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="20dp"
        android:scaleType="fitXY"/>
    <!--network status text-->
    <TextView
        android:id="@+id/conStatusTv"
        android:textAlignment="center"
        android:textColor="#000"
        android:textSize="20sp"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
    <!--button to check network status-->
    <Button
        android:id="@+id/conStatusBtn"
        style="@style/Base.Widget.AppCompat.Button.Colored"
        android:text="Check Network"
        android:layout_centerHorizontal="true"
        android:layout_alignParentBottom="true"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</RelativeLayout>

MainActivity.java

package com.blogspot.atifsoftwares.networconnectionstatus;

import android.content.Context;
import android.media.Image;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

    //Views
    ImageView mConStatusIv;
    TextView mConStatusTv;
    Button mConStatusBtn;

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

        //link views with xml
        mConStatusIv = findViewById(R.id.conStatusIv);
        mConStatusTv = findViewById(R.id.conStatusTv);
        mConStatusBtn = findViewById(R.id.conStatusBtn);

        //button click to check network status
        mConStatusBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //function call to check network connection status
                checkNetworkConnectionStatus();
            }
        });

    }

    private void checkNetworkConnectionStatus() {
        boolean wifiConnected;
        boolean mobileConnected;
        ConnectivityManager connMgr = (ConnectivityManager)
                getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo activeInfo = connMgr.getActiveNetworkInfo();
        if (activeInfo != null && activeInfo.isConnected()){ //connected with either mobile or wifi
            wifiConnected = activeInfo.getType() == ConnectivityManager.TYPE_WIFI;
            mobileConnected = activeInfo.getType() == ConnectivityManager.TYPE_MOBILE;
            if (wifiConnected){ //wifi connected
                mConStatusIv.setImageResource(R.drawable.ic_action_wifi);
                mConStatusTv.setText("Connected with Wifi");
            }
            else if (mobileConnected){ //mobile data connected
                mConStatusIv.setImageResource(R.drawable.ic_action_mobile);
                mConStatusTv.setText("Connected with Mobile Data Connection");
            }
        }
        else { //no internet connection
            mConStatusIv.setImageResource(R.drawable.ic_action_no);
            mConStatusTv.setText("No internet connection");
        }
    }
}

Step 5: Run Project

Output