Question

    WIFI  = (Spinner) findViewById(R.id.WIFI);
 // Create an ArrayAdapter using the string array and a default spinner layout
 ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this,
         R.array.WIFI, android.R.layout.simple_dropdown_item_1line);
 // Specify the layout to use when the list of choices appears
 adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
 // Apply the adapter to the spinner
 WIFI.setAdapter(adapter);
 WIFI.setOnItemSelectedListener(new MyOnItemSelectedListener());

How to enable wifi by selecting it from spinner.
I’ll be thankful to you

Answer 1

Add this piece of code to your listener

WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);
wifi.setWifiEnabled(true);

or for toggle behaviour

wifi.setWifiEnabled(!wifi.isWifiEnabled());

You will probably need to add some permissions to your manifest

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

See WifiManager for more options…

And as far as I know, there is no API for hotspot features. You would have to use reflection to call those methods…