Distance Calculator in Android

Post Views: 5,604

Hello Friends, Today I am going to share distance calculator code in android which is basically based on GPS. In this code we are going to use GPS location so we need to take below permissions.

<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>

1 2	<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/> <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>

We need to use below module dependency also

compile 'com.google.android.gms:play-services-base:10.0.1'
compile 'com.google.android.gms:play-services-location:10.0.1'

1 2	compile 'com.google.android.gms:play-services-base:10.0.1' compile 'com.google.android.gms:play-services-location:10.0.1'

So, Here is the code

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:padding="6dp"
    android:shrinkColumns="*"
    android:stretchColumns="*"
    tools:context="com.zatackcoder.distancecalculator.MainActivity">


        <TableRow
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:background="#000"
            android:gravity="center_horizontal">

            <TextView
                android:id="@+id/msgTV"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_weight="1"
                android:textColor="#fff"/>
        </TableRow>
        <TableRow
            android:layout_width="match_parent"
            android:layout_height="wrap_content">
            <TextView
                android:id="@+id/currentLatLongTV"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:text="Current Location"
                android:textAlignment="center"
                android:textSize="24sp" />
        </TableRow>
        <TableRow
            android:layout_width="match_parent"
            android:layout_height="wrap_content">
            <Button
                android:id="@+id/startStopB"
                android:layout_width="match_parent"
                android:layout_height="60dp"
                android:text="Start" />
        </TableRow>


</TableLayout>

<?xml version="1.0" encoding="utf-8"?>

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

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

android:id="@+id/activity_main"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:padding="6dp"

android:shrinkColumns="*"

android:stretchColumns="*"

tools:context="com.zatackcoder.distancecalculator.MainActivity">

<TableRow

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:layout_weight="1"

android:background="#000"

android:gravity="center_horizontal">

<TextView

android:id="@+id/msgTV"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:layout_weight="1"

android:textColor="#fff"/>

</TableRow>

<TableRow

android:layout_width="match_parent"

android:layout_height="wrap_content">

<TextView

android:id="@+id/currentLatLongTV"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:text="Current Location"

android:textAlignment="center"

android:textSize="24sp" />

</TableRow>

<TableRow

android:layout_width="match_parent"

android:layout_height="wrap_content">

<Button

android:id="@+id/startStopB"

android:layout_width="match_parent"

android:layout_height="60dp"

android:text="Start" />

</TableRow>

</TableLayout>

MainActivity.java

package com.zatackcoder.distancecalculator;

import android.content.pm.PackageManager;
import android.location.Location;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.location.LocationListener;
import com.google.android.gms.location.LocationRequest;
import com.google.android.gms.location.LocationServices;

public class MainActivity extends AppCompatActivity implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, LocationListener {


    private GoogleApiClient mGoogleApiClient = null;
    public static Double startLat = null;
    public static Double startLong = null;
    public static Double endLat = null;
    public static Double endLong = null;

    TextView msgTV, currentLatLongTV;
    Button startStopB;

    boolean started = false;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        initializeGoogleApi();

        msgTV = (TextView)findViewById(R.id.msgTV);
        currentLatLongTV = (TextView)findViewById(R.id.currentLatLongTV);
        startStopB = (Button)findViewById(R.id.startStopB);
        startStopB.setOnClickListener(new View.OnClickListener(){

            @Override
            public void onClick(View v) {
                if(startStopB.getText().equals("Start")) {
                    started = true;
                    msgTV.setText("Start Walking..");
                    updateStartLatLong();
                    startStopB.setText("Stop");
                } else if(startStopB.getText().equals("Stop")) {
                    started = false;
                    msgTV.append("\n\nStop Walking..");
                    updateEndLatLong();
                    msgTV.append("\n\nDistance from start location is " + getCalculatedDistance() + " Meters\n\n\n");
                    startStopB.setText("Start");
                }
            }
        });
    }

    private void initializeGoogleApi() {
        /*For Location*/
        if (mGoogleApiClient == null) {
            mGoogleApiClient = new GoogleApiClient.Builder(this)
                    .addConnectionCallbacks(this)
                    .addOnConnectionFailedListener(this)
                    .addApi(LocationServices.API)
                    .build();
        }
    }

    @Override
    protected void onStart() {
        mGoogleApiClient.connect();
        super.onStart();
    }

    @Override
    protected void onStop() {
        mGoogleApiClient.disconnect();
        super.onStop();
    }

    @Override
    public void onConnected(@Nullable Bundle bundle) {
        if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            ActivityCompat.requestPermissions(this, new String[] {android.Manifest.permission.ACCESS_FINE_LOCATION, android.Manifest.permission.ACCESS_COARSE_LOCATION}, 1);
            return;
        }

        LocationRequest mLocationRequest = new LocationRequest();
        mLocationRequest.setInterval(1000);
        mLocationRequest.setFastestInterval(500);
        mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
        LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this);

        Location mLastLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);

        if (mLastLocation != null) {
            startLat = mLastLocation.getLatitude();
            startLong = mLastLocation.getLongitude();
            currentLatLongTV.setText(startLat + ", " + startLong);
        }

    }


    @Override
    public void onConnectionSuspended(int i) {

    }

    @Override
    public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {

    }

    @Override
    public void onLocationChanged(Location location) {
        endLat = location.getLatitude();
        endLong = location.getLongitude();
        currentLatLongTV.setText(endLat + ", " + endLong);
        if(started) {
            currentLatLongTV.append("\nDistance: " + getCalculatedDistance() + " Meters");
        }
    }

    private void updateStartLatLong() {
        if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            ActivityCompat.requestPermissions(this, new String[] {android.Manifest.permission.ACCESS_FINE_LOCATION, android.Manifest.permission.ACCESS_COARSE_LOCATION}, 1);
            return;
        }

        Location mLastLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
        if (mLastLocation != null) {
            startLat = mLastLocation.getLatitude();
            startLong = mLastLocation.getLongitude();
            msgTV.append("\nStarted From Latitude " + startLat);
            msgTV.append("\nStarted From Longitude " + startLong);
        }
    }

    private void updateEndLatLong() {
        if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            ActivityCompat.requestPermissions(this, new String[] {android.Manifest.permission.ACCESS_FINE_LOCATION, android.Manifest.permission.ACCESS_COARSE_LOCATION}, 1);
            return;
        }

        Location mLastLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
        if (mLastLocation != null) {
            endLat = mLastLocation.getLatitude();
            endLong = mLastLocation.getLongitude();
            msgTV.append("\nStopped Latitude " + endLat);
            msgTV.append("\nStopped Longitude " + endLong);
        }
    }

    private Float getCalculatedDistance() {
        Location startLocation = new Location("Start Location");
        startLocation.setLongitude(startLong);
        startLocation.setLatitude(startLat);

        Location endLocation = new Location("End Location");
        endLocation.setLongitude(endLong);
        endLocation.setLatitude(endLat);

        Float distance = Math.abs(startLocation.distanceTo(endLocation));
        return distance;
    }

}

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

package com.zatackcoder.distancecalculator;

import android.content.pm.PackageManager;

import android.location.Location;

import android.os.Bundle;

import android.support.annotation.NonNull;

import android.support.annotation.Nullable;

import android.support.v4.app.ActivityCompat;

import android.support.v7.app.AppCompatActivity;

import android.view.View;

import android.widget.Button;

import android.widget.TextView;

import com.google.android.gms.common.ConnectionResult;

import com.google.android.gms.common.api.GoogleApiClient;

import com.google.android.gms.location.LocationListener;

import com.google.android.gms.location.LocationRequest;

import com.google.android.gms.location.LocationServices;

public class MainActivity extends AppCompatActivity implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, LocationListener {

private GoogleApiClient mGoogleApiClient = null;

public static Double startLat = null;

public static Double startLong = null;

public static Double endLat = null;

public static Double endLong = null;

TextView msgTV, currentLatLongTV;

Button startStopB;

boolean started = false;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

initializeGoogleApi();

msgTV = (TextView)findViewById(R.id.msgTV);

currentLatLongTV = (TextView)findViewById(R.id.currentLatLongTV);

startStopB = (Button)findViewById(R.id.startStopB);

startStopB.setOnClickListener(new View.OnClickListener(){

@Override

public void onClick(View v) {

if(startStopB.getText().equals("Start")) {

started = true;

msgTV.setText("Start Walking..");

updateStartLatLong();

startStopB.setText("Stop");

} else if(startStopB.getText().equals("Stop")) {

started = false;

msgTV.append("\n\nStop Walking..");

updateEndLatLong();

msgTV.append("\n\nDistance from start location is " + getCalculatedDistance() + " Meters\n\n\n");

startStopB.setText("Start");

}

});

}

private void initializeGoogleApi() {

/*For Location*/

if (mGoogleApiClient == null) {

mGoogleApiClient = new GoogleApiClient.Builder(this)

.addConnectionCallbacks(this)

.addOnConnectionFailedListener(this)

.addApi(LocationServices.API)

.build();

}

@Override

protected void onStart() {

mGoogleApiClient.connect();

super.onStart();

}

@Override

protected void onStop() {

mGoogleApiClient.disconnect();

super.onStop();

}

@Override

public void onConnected(@Nullable Bundle bundle) {

if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {

ActivityCompat.requestPermissions(this, new String[] {android.Manifest.permission.ACCESS_FINE_LOCATION, android.Manifest.permission.ACCESS_COARSE_LOCATION}, 1);

return;

}

LocationRequest mLocationRequest = new LocationRequest();

mLocationRequest.setInterval(1000);

mLocationRequest.setFastestInterval(500);

mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);

LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this);

Location mLastLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);

if (mLastLocation != null) {

startLat = mLastLocation.getLatitude();

startLong = mLastLocation.getLongitude();

currentLatLongTV.setText(startLat + ", " + startLong);

}

@Override

public void onConnectionSuspended(int i) {

}

@Override

public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {

}

@Override

public void onLocationChanged(Location location) {

endLat = location.getLatitude();

endLong = location.getLongitude();

currentLatLongTV.setText(endLat + ", " + endLong);

if(started) {

currentLatLongTV.append("\nDistance: " + getCalculatedDistance() + " Meters");

}

private void updateStartLatLong() {

ActivityCompat.requestPermissions(this, new String[] {android.Manifest.permission.ACCESS_FINE_LOCATION, android.Manifest.permission.ACCESS_COARSE_LOCATION}, 1);

return;

}

Location mLastLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);

if (mLastLocation != null) {

startLat = mLastLocation.getLatitude();

startLong = mLastLocation.getLongitude();

msgTV.append("\nStarted From Latitude " + startLat);

msgTV.append("\nStarted From Longitude " + startLong);

}

private void updateEndLatLong() {

ActivityCompat.requestPermissions(this, new String[] {android.Manifest.permission.ACCESS_FINE_LOCATION, android.Manifest.permission.ACCESS_COARSE_LOCATION}, 1);

return;

}

Location mLastLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);

if (mLastLocation != null) {

endLat = mLastLocation.getLatitude();

endLong = mLastLocation.getLongitude();

msgTV.append("\nStopped Latitude " + endLat);

msgTV.append("\nStopped Longitude " + endLong);

}

private Float getCalculatedDistance() {

Location startLocation = new Location("Start Location");

startLocation.setLongitude(startLong);

startLocation.setLatitude(startLat);

Location endLocation = new Location("End Location");

endLocation.setLongitude(endLong);

endLocation.setLatitude(endLat);

Float distance = Math.abs(startLocation.distanceTo(endLocation));

return distance;

}

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.zatackcoder.distancecalculator">

    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name="com.zatackcoder.distancecalculator.MainActivity"
            android:configChanges="orientation|screenSize">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

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

</manifest>

<?xml version="1.0" encoding="utf-8"?>

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

package="com.zatackcoder.distancecalculator">

<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>

<application

android:allowBackup="true"

android:icon="@mipmap/ic_launcher"

android:label="@string/app_name"

android:supportsRtl="true"

android:theme="@style/AppTheme">

<activity android:name="com.zatackcoder.distancecalculator.MainActivity"

android:configChanges="orientation|screenSize">

<intent-filter>

</intent-filter>

</activity>

</application>

</manifest>

build.gradle

apply plugin: 'com.android.application'

android {
    compileSdkVersion 24
    buildToolsVersion "24.0.3"
    defaultConfig {
        applicationId "com.zatack.distancecalculator"
        minSdkVersion 15
        targetSdkVersion 24
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile 'com.android.support:appcompat-v7:24.2.1'
    testCompile 'junit:junit:4.12'
    compile 'com.google.android.gms:play-services-base:10.0.1'
    compile 'com.google.android.gms:play-services-location:10.0.1'
}

apply plugin: 'com.android.application'

android {

compileSdkVersion 24

buildToolsVersion "24.0.3"

defaultConfig {

applicationId "com.zatack.distancecalculator"

minSdkVersion 15

targetSdkVersion 24

versionCode 1

versionName "1.0"

testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

}

buildTypes {

release {

minifyEnabled false

proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'

}

dependencies {

compile fileTree(dir: 'libs', include: ['*.jar'])

androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {

exclude group: 'com.android.support', module: 'support-annotations'

})

compile 'com.android.support:appcompat-v7:24.2.1'

testCompile 'junit:junit:4.12'

compile 'com.google.android.gms:play-services-base:10.0.1'

compile 'com.google.android.gms:play-services-location:10.0.1'

}

Screen Shot

Download Android Studio Project