Java Android Program to Demonstrate Geo Coding in Android

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Here is source code of the Program to Demonstrate Geo Coding in Android. The program is successfully compiled and run on a Windows system using Eclipse Ide. The program output is also shown below.

Main Activity

package com.example.geocode;
 
import java.io.IOException;
import java.util.List;
import java.util.Locale;
 
import android.location.Address;
import android.location.Geocoder;
import android.os.Bundle;
import android.app.Activity;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
 
public class MainActivity extends Activity {
 
    double latitude, longitude;
    EditText locationName;
    Button okbtn;
    TextView result;
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
 
        locationName = (EditText) findViewById(R.id.location);
        okbtn = (Button) findViewById(R.id.button1);
        result = (TextView) findViewById(R.id.textView1);
 
        // Log.v("msg",(Locale.getDefault().toString()));
 
        okbtn.setOnClickListener(new View.OnClickListener() {
 
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
 
                Geocoder geocoder = new Geocoder(getBaseContext(), Locale
                        .getDefault());
 
                try {
                    List<Address> address;
 
                    address = geocoder.getFromLocationName(locationName
                            .getText().toString(), 1);
                    if (address.size() > 0) {
                        latitude = address.get(0).getLatitude();
                        longitude = address.get(0).getLongitude();
                    }
 
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                } finally {
 
                }
 
                result.setText("" + latitude + "\n" + longitude);
 
            }
        });
    }
 
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }
 
}

Main Activity

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<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:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/hello_world" />
 
 
 
    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/textView1"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="86dp"
        android:text="OK" />
 
    <EditText
        android:id="@+id/location"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignRight="@+id/button1"
        android:layout_below="@+id/textView1"
        android:layout_marginTop="22dp"
        android:ems="10" >
 
        <requestFocus />
    </EditText>
 
</RelativeLayout>

Screenshot_2013-12-16-22-15-59[1]

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Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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