Showing current location in Google Maps using API V2 with SupportMapFragment

Step 1 :- Create New Android Project.



Step 2 :- Add Google-play-services_lib to your project.

Step 3 :- Open AndroidManifest.xml file.

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.mapv2.demo"
    android:versionCode="2"
    android:versionName="1.0.1" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="17" />
   
   
    <permission
          android:name="com.mapv2.demo.permission.MAPS_RECEIVE"
          android:protectionLevel="signature"/>
    <uses-permission android:name="com.mapv2.demo.permission.MAPS_RECEIVE"/>
   
    <uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/>
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
   
    <uses-feature
          android:glEsVersion="0x00020000"
          android:required="true"/>

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.mapv2.demo.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>
       
        <meta-data
            android:name="com.google.android.maps.v2.API_KEY"
            android:value="AIzaSyCmX7SLVHXxU9pSqb2QbAOvdnjAGUulOrk"/>
       
    </application>

</manifest>

Step 4 :- Open activity_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"
    tools:context=".MainActivity" >
   
    <TextView
        android:id="@+id/tv_location"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        />

    <fragment
        android:id="@+id/map"
          android:layout_width="match_parent"
          android:layout_height="match_parent"
          android:layout_below="@id/tv_location"
          class="com.google.android.gms.maps.SupportMapFragment"
          />

</RelativeLayout>
Step 5 :- Open MainActivity.java

package com.mapv2.demo;

import android.app.Dialog;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.view.Menu;
import android.widget.TextView;

import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;

public class MainActivity extends FragmentActivity implements LocationListener {
   
    GoogleMap googleMap;
   
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
       
        // Getting Google Play availability status
        int status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(getBaseContext());

        // Showing status
        if(status!=ConnectionResult.SUCCESS){ // Google Play Services are not available
           
            int requestCode = 10;
            Dialog dialog = GooglePlayServicesUtil.getErrorDialog(status, this, requestCode);
            dialog.show();
           
        }else {    // Google Play Services are available   
       
            // Getting reference to the SupportMapFragment of activity_main.xml
            SupportMapFragment fm = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
           
            // Getting GoogleMap object from the fragment
            googleMap = fm.getMap();
           
            // Enabling MyLocation Layer of Google Map
            googleMap.setMyLocationEnabled(true);               
                   
           
             // Getting LocationManager object from System Service LOCATION_SERVICE
            LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
   
            // Creating a criteria object to retrieve provider
            Criteria criteria = new Criteria();
   
            // Getting the name of the best provider
            String provider = locationManager.getBestProvider(criteria, true);
   
            // Getting Current Location
            Location location = locationManager.getLastKnownLocation(provider);
   
            if(location!=null){
                    onLocationChanged(location);
            }
   
            locationManager.requestLocationUpdates(provider, 20000, 0, this);
        }
       
    }
   

    @Override
    public void onLocationChanged(Location location) {
       
        TextView tvLocation = (TextView) findViewById(R.id.tv_location);
       
        // Getting latitude of the current location
        double latitude = location.getLatitude();
       
        // Getting longitude of the current location
        double longitude = location.getLongitude();       
       
        // Creating a LatLng object for the current location
        LatLng latLng = new LatLng(latitude, longitude);
       
        // Showing the current location in Google Map
        googleMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
       
        // Zoom in the Google Map
        googleMap.animateCamera(CameraUpdateFactory.zoomTo(15));       
       
       
        // Setting latitude and longitude in the TextView tv_location
        tvLocation.setText("Latitude:" +  latitude  + ", Longitude:"+ longitude );       
               
    }

    @Override
    public void onProviderDisabled(String provider) {
        // TODO Auto-generated method stub       
    }

    @Override
    public void onProviderEnabled(String provider) {
        // TODO Auto-generated method stub       
    }

    @Override
    public void onStatusChanged(String provider, int status, Bundle extras) {
        // TODO Auto-generated method stub       
    }
   
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }
}

Step 6 :- Run Code.

Step 7 :- Download Code :- https://dl.dropboxusercontent.com/u/109954727/Map/map2.zip