Calculate distance between two geo coordinates in android

Hi,In this tutorial we discuss about how to calculate distance between two locations in android by using Location class which is available in android.location.Location package.

lets start coding

Create a Project:

create layout file in res/layout/main.xml 

1) main.xml

<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">

    <TextView
        android:id="@+id/distancetext"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text=""
        android:textSize="25sp"
        android:textStyle="bold"
        android:layout_centerInParent="true"/>


</RelativeLayout>

2)MainActivity.java

First take any two location coordinates in google map

next add the below code in your java code file

import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.Date;

import android.app.Activity;
import android.content.Context;
import android.content.ContextWrapper;
import android.location.Location;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.view.Window;
import android.widget.TextView;

public class MainActivity extends Activity {
TextView distancetext;

       @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_main);
distancetext=(TextView)findViewById(R.id.distancetext);

   
       Location locationA = new Location("point A");
            locationA.setLatitude(Double.parseDouble("17.423397"));
            locationA.setLongitude(Double.parseDouble("78.425674"));
            Location locationB = new Location("point B");
         
            locationB.setLatitude(Double.parseDouble("17.413393"));
            locationB.setLongitude(Double.parseDouble("78.428303"));
            float distance = locationA.distanceTo(locationB);
            //Log.e("", "distance "+(distance / 1000));
            // Log.e("", "distance "+new DecimalFormat("##.#").format(distance / 1000));

            String finaldistance = new DecimalFormat("##.#").format(distance / 1000);
            Log.e("", "distance "+finaldistance+ "   "+"km");
            distancetext.setText("distance   "+finaldistance+ "   "+"km");
}
}


3) AndroidManifest.xml 


<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.forblog"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="21" />
   
    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

4)Demo

 Finally,run your application

 OUTPUT:

you will get distance in km. see below screen