Android - Wifi Example

Android allows applications to access to view the access the state of the
wireless connections at very low level. Application can access almost all the
information of a wifi connection.

Example

Here is an example demonstrating the use of WIFI. It creates a basic

application that open your wifi and close your wifi

To experiment with this example, you need to run this on an actual device

on which wifi is turned on.

Create Android Application

1. The Application First Step Create a New Project Start project

2. Rename Application Name Below Screen Ex: Wifi
Click Next

3. After Spacific Minium sdk API 23 Select Lolipop 5.0
Click Next

4. Final Select Blank Activity And
Click Next




5. Then Select MainActivity Click Finish



6. Then Open a Android Studio

Drawable Folder This Image Download Paste Drawable Folder

1. 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.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);
         }
      });
   }
}

2.Activity Main.xml

<?xml version="1.0" encoding="utf-8"?>
<?xml version="1.0" encoding="utf-8"?
  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:paddingLeft="@dimen/activity_horizontal_margin"
   android:paddingRight="@dimen/activity_horizontal_margin"
   android:paddingTop="@dimen/activity_vertical_margin"
   android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">


      
      <ImageView
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:id="@+id/imageView"
      android:src="@drawable/wifi"
      android:layout_alignParentTop="true"
      android:layout_centerHorizontal="true"/>
   
   
   <Button
      android:id="@+id/button1"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_marginLeft="76dp"
      android:text="Enable Wifi"
      android:layout_centerVertical="true"
      android:layout_alignEnd="@+id/imageView"/>
   
   
   <Button
      android:id="@+id/button2"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:text="Disable Wifi"
      android:layout_marginBottom="93dp"
      android:layout_alignParentBottom="true"
      android:layout_alignStart="@+id/imageView"/>
   
     
 </RelativeLayout>

3.Activity Mainifests.xml

<?xml version="1.0" encoding="utf-8"?>
<?xml version="1.0" encoding="utf-8"?
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.wifi">
 <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
 <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
  <application
      android:allowBackup="true"
      android:icon="@mipmap/ic_launcher"
      android:label="@string/app_name"
      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.String.xml

<resources>
   <string name="app_name">Camera</string>
   <string name="Camera">Camera!</string>
   <string name="menu_settings">Settings</string>
   <string name="title_activity_main">MainActivity</string>
</resources>

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