Wifi Scanner list

// You need permissions INTERNET ACCES_WIFI_STATE CHANGE_WIFI_STATE
// Only tested on Kitkat 4.4

import java.util.List;
import android.content.Context;
import android.content.BroadcastReceiver;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.wifi.ScanResult;
import android.net.wifi.WifiManager;
import android.os.Bundle;
import android.app.Activity;


// This example scans for available access points and ad hoc networks. 

WifiManager wifi;
WifiScanReceiver wifiReceiver;
Activity act;
Context mC;


@Override
  void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  act = this.getActivity();
  mC= act.getApplicationContext();
  IntentFilter intentFilter = new IntentFilter();
  intentFilter.addAction(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION);
  wifiReceiver = new WifiScanReceiver();
  mC.registerReceiver(wifiReceiver, intentFilter);
  wifi = (WifiManager) act.getApplicationContext().getSystemService(Context.WIFI_SERVICE);
  wifi.startScan();
}

class WifiScanReceiver extends BroadcastReceiver {
  public void onReceive(Context c, Intent intent) {
    List<ScanResult> wifiScanList = wifi.getScanResults();
    for (int i = 0; i < wifiScanList.size(); i++) {
      String info = ((wifiScanList.get(i)).toString());
      println(info+"\n");
    }
  }
}