ON/OFF Wifi and Hotspot using Android Application

Hello friends,

Today we are going to learn about wifi and hotspot in android application.This is most use full topics in android. today we all are familer with this tool. using wifi we can share internet,files and do many more things. wifi and hotspot connecte togther and share internet in android.

So, first we need to provide some permission to do this features in android.

AndroidMainfest.xml

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

activity_main.xml

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

    <RelativeLayout
        android:id="@+id/wifilauyout"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true">


        <Button
            android:id="@+id/btnwifion"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:onClick="wifiOn"
            android:text="WIFI ON" />

        <Button
            android:id="@+id/btnwifioff"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_toRightOf="@id/btnwifion"
            android:onClick="wifioff"
            android:text="WIFI OFF" />

    </RelativeLayout>

    <RelativeLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/wifilauyout"
        android:layout_centerHorizontal="true">

        <Button
            android:id="@+id/btnhotspoton"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:onClick="hotsportOn"
            android:text="Hotspot ON" />

        <Button
            android:id="@+id/btnhotsportoff"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_toRightOf="@id/btnhotspoton"
            android:onClick="hotsportoff"
            android:text="Hotspot OFF" />

    </RelativeLayout>
</RelativeLayout>


MainActivity.java


public class MainActivity extends AppCompatActivity {
    WifiManager wifi;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        wifi = (WifiManager) MainActivity.this.getApplicationContext().getSystemService(Context.WIFI_SERVICE);
    }

    public void wifiOn(View view) {
        if (!wifi.isWifiEnabled()) {
            wifi.setWifiEnabled(true);
        }
    }

    public void wifioff(View view) {
        if (wifi.isWifiEnabled()) {
            wifi.setWifiEnabled(false);
        }
    }

    public void hotsportOn(View view) {
        AppHotSpotManager apManager = new AppHotSpotManager(MainActivity.this);
        apManager.turnWifiApOn();
    }

    public void hotsportoff(View view) {
        AppHotSpotManager apManager = new AppHotSpotManager(MainActivity.this);
        apManager.turnWifiApOff();
    }

}

Output: