Android Tutorial
Android Widgets
Activity and Intents
Android Fragments
- android-fragments
Android Menu
Android Service
- android-service
Android AlarmManager
- android-alarmmanager
Android Storage
Android SQLite
- sqlite-tutorial
- sqlite-spinner
XML and JSON
Android Multimedia
Android Speech
- texttospeech1
- texttospeech2
Android Telephony
Android Device
Camera Tutorial
- camera-tutorial
Sensor Tutorial
- sensor-tutorial
Android Graphics
- android-graphics
Android Animation
- android-animation
Android Web Service
- android-web-service
Google Map
Adding Ads
Android Examples
Android Social
Android Versions
Android Misc
Android Interview
- interview-questions

Android Wifi Example

The android.net.wifi.WifiManager class can be used to manage the wifi connectivity. It can be used to add network, disable network, scan for access points, disconnect etc.

Android wifi example to enable and disable wifi

Let's see the simple example of wifi to enable and disable the wifi service.

activity_main.xml

File: activity_main.xml

<RelativeLayout xmlns:androclass="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity" >

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:layout_marginLeft="76dp"
        android:layout_marginTop="67dp"
        android:text="Enable Wifi" />

    <Button
        android:id="@+id/button2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/button1"
        android:layout_below="@+id/button1"
        android:layout_marginTop="44dp"
        android:text="Disable Wifi" />

</RelativeLayout>

Activity class

File: MainActivity.java

package com.example.wifi;

import android.net.wifi.WifiManager;
import android.os.Bundle;
import android.app.Activity;
import android.content.Context;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class MainActivity extends Activity {
	Button enableButton,disableButton;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		
		enableButton=(Button)findViewById(R.id.button1);
		disableButton=(Button)findViewById(R.id.button2);
		
		enableButton.setOnClickListener(new OnClickListener(){
			public void onClick(View v){
				WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);
				wifi.setWifiEnabled(true);
			}
		});
		disableButton.setOnClickListener(new OnClickListener(){
			public void onClick(View v){
				WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);
				wifi.setWifiEnabled(false);
			}
		});
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.activity_main, menu);
		return true;
	}

}

Add Permission in AndroidManifest.xml

You need to add following permissions in AndroidManifest.xml file.

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

download this android example

Output:

Next TopicAndroid Camera Tutorial

← prev next →

Hot Tutorials

Contact US

Email:[email protected]

WIFI

10/30

Android Tutorial

Android Widgets

Activity and Intents

Android Fragments

Android Menu

Android Service

Android AlarmManager

Android Storage

Android SQLite

XML and JSON

Android Multimedia

Android Speech

Android Telephony

Android Device

Camera Tutorial

Sensor Tutorial

Android Graphics

Android Animation

Android Web Service

Google Map

Adding Ads

Android Examples

Android Social

Android Versions

Android Misc

Android Interview