Turn Android Wifi On/Off

To turn Wifi ON:

    WifiManager wifiManager = (WifiManager)getBaseContext().getSystemService(Context.WIFI_SERVICE);
   wifiManager.setWifiEnabled(true);

To turn Wifi OFF:

    WifiManager wifiManager = (WifiManager)getBaseContext().getSystemService(Context.WIFI_SERVICE);
   wifiManager.setWifiEnabled(false);

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