Android WiFi Positioning

In fact, WiFi positioning is similar to the positioning of the base station. You just need to transfer the MAC address of wifi to Google. The following is the specific implementation!

import java.io.Serializable;import android.content.Context;import android.net.wifi.WifiManager;import android.util.Log;/** * @author yangzhiqiang *  */public class WiFiInfoManager implements Serializable {/** *  */private static final long serialVersionUID = -4582739827003032383L;private Context context;public WiFiInfoManager(Context context) {super();this.context = context;}public WifiInfo getWifiInfo() {WifiManager manager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);WifiInfo info = new WifiInfo();info.mac = manager.getConnectionInfo().getBSSID();Log.i("TAG", "WIFI MAC is:" + info.mac);return info;}public class WifiInfo {public String mac;public WifiInfo() {super();}}}

The above is the method for obtaining the MAC address of wifi. below is the code for sending the address to the Google Server:

public static Location getWIFILocation(WifiInfo wifi) {if (wifi == null) {Log.i("TAG", "wifi is null.");return null;}DefaultHttpClient client = new DefaultHttpClient();HttpPost post = new HttpPost("http://www.google.com/loc/json");JSONObject holder = new JSONObject();try {holder.put("version", "1.1.0");holder.put("host", "maps.google.com");JSONObject data;JSONArray array = new JSONArray();if (wifi.mac != null && wifi.mac.trim().length() > 0) {data = new JSONObject();data.put("mac_address", wifi.mac);data.put("signal_strength", 8);data.put("age", 0);array.put(data);}holder.put("wifi_towers", array);Log.i("TAG", "request json:" + holder.toString());StringEntity se = new StringEntity(holder.toString());post.setEntity(se);HttpResponse resp = client.execute(post);int state = resp.getStatusLine().getStatusCode();if (state == HttpStatus.SC_OK) {HttpEntity entity = resp.getEntity();if (entity != null) {BufferedReader br = new BufferedReader(new InputStreamReader(entity.getContent()));StringBuffer sb = new StringBuffer();String resute = "";while ((resute = br.readLine()) != null) {sb.append(resute);}br.close();Log.i("TAG", "response json:" + sb.toString());data = new JSONObject(sb.toString());data = (JSONObject) data.get("location");Location loc = new Location(android.location.LocationManager.NETWORK_PROVIDER);loc.setLatitude((Double) data.get("latitude"));loc.setLongitude((Double) data.get("longitude"));loc.setAccuracy(Float.parseFloat(data.get("accuracy").toString()));loc.setTime(System.currentTimeMillis());return loc;} else {return null;}} else {Log.v("TAG", state + "");return null;}} catch (Exception e) {Log.e("TAG", e.getMessage());return null;}}