Get list of address from location using Geocoder

Get list of address from location using Geocoder

 In this exercise, a list of 5 addresses are retrieved; by submitting "5"(maxResult) in the third parameter of getFromLocation() method.



Modify main.xml to add a Spinner to show the returned address.

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:orientation="vertical"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  >
<TextView
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:text="@string/hello"
  />
<TextView
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:text="Location"
  android:background="#505050"
  />
<TextView
  android:id="@+id/mylatitude"
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  />
<TextView
  android:id="@+id/mylongitude"
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  />
<TextView
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:text="Address"
  android:background="#505050"
  />
<TextView
  android:id="@+id/myaddress"
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  />
<Spinner
  android:id="@+id/addresslist"
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  />
</LinearLayout>

AndroidFromLocation.java

package com.exercise.AndroidFromLocation;

import java.io.IOException;
import java.util.List;
import java.util.Locale;

import android.app.Activity;
import android.location.Address;
import android.location.Geocoder;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.TextView;

public class AndroidFromLocation extends Activity {

double LATITUDE = 37.42233;
double LONGITUDE = -122.083;

final int maxResult =5;
String addressList[] = new String[maxResult];
private ArrayAdapter<String> adapter;

  /** Called when the activity is first created. */
  @Override
  public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.main);
      TextView myLatitude = (TextView)findViewById(R.id.mylatitude);
      TextView myLongitude = (TextView)findViewById(R.id.mylongitude);
      TextView myAddress = (TextView)findViewById(R.id.myaddress);
      Spinner myAddressList = (Spinner)findViewById(R.id.addresslist);
    
      myLatitude.setText("Latitude: " + String.valueOf(LATITUDE));
      myLongitude.setText("Longitude: " + String.valueOf(LONGITUDE));
    
      Geocoder geocoder = new Geocoder(this, Locale.ENGLISH);

      try {
  List<Address> addresses = geocoder.getFromLocation(LATITUDE, LONGITUDE, maxResult);
 
  if(addresses != null) {
  
   for (int j=0; j<maxResult; j++){
    Address returnedAddress = addresses.get(j);
    StringBuilder strReturnedAddress = new StringBuilder();
    for(int i=0; i<returnedAddress.getMaxAddressLineIndex(); i++) {
     strReturnedAddress.append(returnedAddress.getAddressLine(i)).append("\n");
    }
    addressList[j] = strReturnedAddress.toString();
   }
  
   adapter = new ArrayAdapter<String>(this,
     android.R.layout.simple_spinner_item, addressList);
   adapter.setDropDownViewResource(android.R.layout.
     simple_spinner_dropdown_item);
   myAddressList.setAdapter(adapter);
  }
  else{
   myAddress.setText("No Address returned!");
  }
 } catch (IOException e) {
  // TODO Auto-generated catch block
  e.printStackTrace();
  myAddress.setText("Canont get Address!");
 }
  }
}