Detect android phone is connected to WiFi or Mobile data Network programmatically

How to find out which network is currently connected to my phone via app dynamically 3G,2G,WiFi.

In this tutorial we are detecting current network connection and tells the app user that your phone is currently connected to WiFi( If phone is connected to WiFi ) or tells your phone is currently connected to Mobile Data( If phone is connected to 3G, 2G data ). So here is the complete step by step tutorial for Detect android phone is connected to WiFi or Mobile data Network programmatically.

Please add below three internet permissions inside AndroidManifest.xml file.

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

How to Detect android phone is connected to WiFi or Mobile data Network programmatically.

Code for MainActivity.java file.

 package com.detectwifimobiledata_android_examples.com;

import android.app.Activity;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;


public class MainActivity extends Activity {

 Button btn;
 TextView txtview;
 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);
 
 btn = (Button)findViewById(R.id.button1);
 txtview = (TextView)findViewById(R.id.textView1);
 
 btn.setOnClickListener(new View.OnClickListener() {
 
 @Override
 public void onClick(View v) {
 // TODO Auto-generated method stub
 
 ConnectivityManager connectivitymanager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
 
 NetworkInfo[] networkInfo = connectivitymanager.getAllNetworkInfo();
 
 for (NetworkInfo netInfo : networkInfo) {
 
 if (netInfo.getTypeName().equalsIgnoreCase("WIFI"))
 
 if (netInfo.isConnected())
 
 txtview.setText("Connected to WiFi");
 
 if (netInfo.getTypeName().equalsIgnoreCase("MOBILE"))
 
 if (netInfo.isConnected())
 
 txtview.setText("Connected to Mobile Data");
 }
 
 }
 });
 }

}

Code for activity_main.xml layout file.

 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:paddingBottom="@dimen/activity_vertical_margin"
 android:paddingLeft="@dimen/activity_horizontal_margin"
 android:paddingRight="@dimen/activity_horizontal_margin"
 android:paddingTop="@dimen/activity_vertical_margin"
 tools:context="com.detectwifimobiledata_android_examples.com.MainActivity" >

 <TextView
 android:id="@+id/textView1"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:layout_alignParentTop="true"
 android:layout_centerHorizontal="true"
 android:layout_marginTop="177dp"
 android:text="Connected NetWork Show Here"
 android:textAppearance="?android:attr/textAppearanceLarge"
 android:gravity="center" />

 <Button
 android:id="@+id/button1"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:layout_below="@+id/textView1"
 android:layout_centerHorizontal="true"
 android:layout_marginTop="25dp"
 android:text="Click here to Detect android phone is connected to WiFi or Mobile data Network programmatically" />

</RelativeLayout>

Code for AndroidManifest.xml file.

 <?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
 package="com.detectwifimobiledata_android_examples.com"
 android:versionCode="1"
 android:versionName="1.0" >

 <uses-sdk
 android:minSdkVersion="8"
 android:targetSdkVersion="21" />

 <uses-permission android:name="android.permission.INTERNET" />
 <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
 <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
 
 <application
 android:allowBackup="true"
 android:icon="@drawable/ic_launcher"
 android:label="@string/app_name"
 android:theme="@style/AppTheme" >
 <activity
 android:name=".MainActivity"
 android:label="@string/app_name" >
 <intent-filter>
 <action android:name="android.intent.action.MAIN" />

 <category android:name="android.intent.category.LAUNCHER" />
 </intent-filter>
 </activity>
 </application>

</manifest>

Screenshots:

Click here to download Detect android phone is connected to WiFi or Mobile data Network programmatically project with source code.