Get Address from reverse geocoding android

Get Address from reverse geocoding android 

what is reverse geo coding?
Reverse geocoding is the process of back (reverse) coding of a point location (latitude, longitude) to a readable address or place name. This permits the identification of nearby street addresses, places, and/or areal subdivisions such as neighbourhoods, county, state, or country.

Activity Source Code

package com.example.reversegeocoding;

import java.io.BufferedReader;

import java.io.InputStream;

import java.io.InputStreamReader;

import org.apache.http.HttpEntity;

import org.apache.http.HttpResponse;

import org.apache.http.client.HttpClient;

import org.apache.http.client.methods.HttpPost;

import org.apache.http.impl.client.DefaultHttpClient;

import org.json.JSONArray;

import org.json.JSONException;

import org.json.JSONObject;

import android.os.Bundle;

import android.os.StrictMode;

import android.app.Activity;

import android.text.TextUtils;

import android.util.Log;

import android.view.Menu;

import android.widget.TextView;

public class MainActivity extends Activity {

       @Override

       protected void onCreate(Bundle savedInstanceState) {

              super.onCreate(savedInstanceState);

              setContentView(R.layout.activity_main);

              if (android.os.Build.VERSION.SDK_INT > 9) {

                     StrictMode.ThreadPolicy stricMode = new StrictMode.ThreadPolicy.Builder()

                                  .permitAll().build();

                     StrictMode.setThreadPolicy(stricMode);

              }

              TextView address_textview =(TextView)findViewById(R.id.address);

              address_textview.setText(getAddress());

       }

       public String getAddress() {

       String address1 = "";

       String  address2 = "";

       String  city = "";

       String state = "";

       String country = "";

       String county = "";

       String  PIN = "";

        String full_address = "";

        try {

            JSONObject jsonObj = getJSONfromURL("http://maps.googleapis.com/maps/api/geocode/json?latlng=" +"12.976457" + ","

                    + "77.618194" + "&sensor=true");

            String Status = jsonObj.getString("status");

            if (Status.equalsIgnoreCase("OK")) {

                JSONArray Results = jsonObj.getJSONArray("results");

                JSONObject zero = Results.getJSONObject(0);

                JSONArray address_components = zero.getJSONArray("address_components");

                for (int i = 0; i < address_components.length(); i++) {

                    JSONObject zero2 = address_components.getJSONObject(i);

                    String long_name = zero2.getString("long_name");

                    JSONArray mtypes = zero2.getJSONArray("types");

                    String Type = mtypes.getString(0);

                    if (TextUtils.isEmpty(long_name) == false || !long_name.equals(null) || long_name.length() > 0 || long_name != "") {

                        if (Type.equalsIgnoreCase("street_number")) {

                            address1 = long_name + " ";

                        } else if (Type.equalsIgnoreCase("route")) {

                            address1 = address1 + long_name;

                        } else if (Type.equalsIgnoreCase("sublocality")) {

                            address2 = long_name;

                        } else if (Type.equalsIgnoreCase("locality")) {

                            // Address2 = Address2 + long_name + ", ";

                            city = long_name;

                        } else if (Type.equalsIgnoreCase("administrative_area_level_2")) {

                            county = long_name;

                        } else if (Type.equalsIgnoreCase("administrative_area_level_1")) {

                            state = long_name;

                        } else if (Type.equalsIgnoreCase("country")) {

                            country = long_name;

                        } else if (Type.equalsIgnoreCase("postal_code")) {

                            PIN = long_name;

                        }

                       

                    }

                    full_address = address1 +","+address2+","+city+","+state+","+country+","+PIN;

                }

            }

        } catch (Exception e) {

            e.printStackTrace();

        }

              return full_address;

    }

        public static JSONObject getJSONfromURL(String url) {

               // initialize

               InputStream is = null;

               String result = "";

               JSONObject jObject = null;

               // http post

               try {

                   HttpClient httpclient = new DefaultHttpClient();

                   HttpPost httppost = new HttpPost(url);

                   HttpResponse response = httpclient.execute(httppost);

                   HttpEntity entity = response.getEntity();

                   is = entity.getContent();

               } catch (Exception e) {

                   Log.e("log_tag", "Error in http connection " + e.toString());

               }

               // convert response to string

               try {

                   BufferedReader reader = new BufferedReader(new InputStreamReader(is, "iso-8859-1"), 8);

                   StringBuilder sb = new StringBuilder();

                   String line = null;

                   while ((line = reader.readLine()) != null) {

                       sb.append(line + "\n");

                   }

                   is.close();

                   result = sb.toString();

               } catch (Exception e) {

                   Log.e("log_tag", "Error converting result " + e.toString());

               }

               // try parse the string to a JSON object

               try {

                   jObject = new JSONObject(result);

               } catch (JSONException e) {

                   Log.e("log_tag", "Error parsing data " + e.toString());

               }

               return jObject;

           }

}

 XML Source Code

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:paddingBottom="@dimen/activity_vertical_margin"

    android:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    tools:context=".MainActivity" >

    <TextView

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:id="@+id/address"

        android:text="@string/hello_world" />

</RelativeLayout>