Map V2 Example

create application and import google-play-services library.

create 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"

    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="com.diyamap.act.MainActivity" >

  <fragment 

          android:id="@+id/map"

          android:layout_width="match_parent"

          android:layout_height="fill_parent"

          android:name="com.google.android.gms.maps.SupportMapFragment"/>

</RelativeLayout>

and below is my menifest.xml file

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

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

    package="com.examplemap.act"

    android:versionCode="1"

    android:versionName="1.0">

    <uses-sdk

        android:minSdkVersion="11"

        android:targetSdkVersion="19"/>

    <permission

        android:name="com.diyamap.act.permission.MAPS_RECEIVE"

        android:protectionLevel="signature"/>

    <uses-feature

        android:glEsVersion="0x00020000"

        android:required="true"/>

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

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

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

<!-- The following two permissions are not required to use

     Google Maps Android API v2, but are recommended. -->

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

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

<uses-permission android:name="com.diyamap.act.permission.MAPS_RECEIVE" />

<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" /> 

    <application

        android:allowBackup="true"

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name"

        android:theme="@style/AppTheme">

        <uses-library android:name="com.google.android.maps"/>

        <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>

        <meta-data

            android:name="com.google.android.gms.version"

            android:value="@integer/google_play_services_version" />

        <meta-data

            android:name="com.google.android.maps.v2.API_KEY"

            android:value="AIzaSyDg11tWv7QEaQOFxzdD44O-C3ts11jxW_s" />

            </application>

</manifest>

here is MainActivity.java

package com.examplemap.act;

import android.content.Context;

import android.graphics.drawable.Drawable;

import android.os.Bundle;

import android.support.v4.app.FragmentActivity;

import com.google.android.gms.maps.CameraUpdateFactory;

import com.google.android.gms.maps.GoogleMap;

import com.google.android.gms.maps.StreetViewPanorama;

import com.google.android.gms.maps.SupportMapFragment;

import com.google.android.gms.maps.model.BitmapDescriptorFactory;

import com.google.android.gms.maps.model.CameraPosition;

import com.google.android.gms.maps.model.GroundOverlayOptions;

import com.google.android.gms.maps.model.LatLng;

import com.google.android.gms.maps.model.Marker;

import com.google.android.gms.maps.model.MarkerOptions;

public class MainActivity extends FragmentActivity {

GoogleMap map;

Drawable drawable;

Context mContext;

protected String latitude, longitude;

protected boolean gps_enabled, network_enabled;

// Double lat,lon;

MarkerOptions marker;

String lat,lon;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

map = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map)).getMap();

mContext = MainActivity.this;

Utility.registerLocationListener(mContext);

lat = Utility.getSharedKey("Latitude", mContext);

lon = Utility.getSharedKey("Longitude", mContext);

map.clear();

// Creating an instance of MarkerOptions

marker = new MarkerOptions();

LatLng latlng = new LatLng(Double.parseDouble(lat),

Double.parseDouble(lon));

marker = new MarkerOptions().position(latlng).title("Hello Maps").snippet("Population: 4,137,400");

// Draw  ground overlay 

/*GroundOverlayOptions newarkMap = new GroundOverlayOptions()

        .image(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_ROSE))

        .position(latlng, 8600f, 6500f);

map.addGroundOverlay(newarkMap);*/

// Custom Marker Icon

/*

* fromAsset(String assetName) – Loading from assets folder fromBitmap

* (Bitmap image) – Loading bitmap image fromFile (String path) –

* Loading from file fromResource (int resourceId) – Loading from

* drawable resource

*/

marker.icon(BitmapDescriptorFactory

.defaultMarker(BitmapDescriptorFactory.HUE_ROSE));

map.addMarker(marker);

CameraPosition cameraPosition = new CameraPosition.Builder()

.target(new LatLng(Double.parseDouble(lat), Double

.parseDouble(lon))).zoom(12).build();

map.animateCamera(CameraUpdateFactory.newCameraPosition(cameraPosition));

// Changing Map Type

map.setMapType(GoogleMap.MAP_TYPE_NORMAL);

// map.setMapType(GoogleMap.MAP_TYPE_HYBRID);

// map.setMapType(GoogleMap.MAP_TYPE_SATELLITE);

// map.setMapType(GoogleMap.MAP_TYPE_TERRAIN);

// map.setMapType(GoogleMap.MAP_TYPE_NONE);

// Showing Current Location

map.setMyLocationEnabled(true); // false to disable

// Zooming Buttons

map.getUiSettings().setZoomControlsEnabled(true); // true to enable

// Zooming Functionality

map.getUiSettings().setZoomGesturesEnabled(true);

// Compass Functionality

map.getUiSettings().setCompassEnabled(true);

// My Location Button

map.getUiSettings().setMyLocationButtonEnabled(true);

// Map Rotate Gesture

map.getUiSettings().setRotateGesturesEnabled(true);

}

}

create Utility.java for common function define here

package com.examplemap.act;

import android.annotation.SuppressLint;

import android.app.AlertDialog;

import android.content.Context;

import android.content.DialogInterface;

import android.content.SharedPreferences;

import android.location.Location;

import android.location.LocationManager;

import android.net.ConnectivityManager;

import android.net.NetworkInfo;

@SuppressLint("SimpleDateFormat")

public class Utility {

public static boolean isNetworkAvailable(Context context) {

ConnectivityManager manager = (ConnectivityManager) context

.getSystemService(Context.CONNECTIVITY_SERVICE);

NetworkInfo info = manager.getActiveNetworkInfo();

return info != null;

}

public static void setSharedKey(String key, String value, Context context) {

SharedPreferences spre = context.getSharedPreferences(

context.getPackageName(), Context.MODE_PRIVATE);

SharedPreferences.Editor prefEditor = spre.edit();

prefEditor.putString(key, value);

//prefEditor.clear();

prefEditor.commit();

}

public static String getSharedKey(String key, Context context) {

SharedPreferences spre = context.getSharedPreferences(

context.getPackageName(), Context.MODE_PRIVATE);

return spre.getString(key, "");

}

public static AlertDialog myAlertDialog;

  public static void showDialogwithTitle(Context context,String message) {

         AlertDialog.Builder builder = new AlertDialog.Builder(context);

         //builder.setTitle(context.getResources().getString(R.string.app_name));

         builder.setMessage(message);

         builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {

                 public void onClick(DialogInterface dialog, int arg1) {

                     dialog.dismiss();

                 }});

         builder.setCancelable(false);

         myAlertDialog = builder.create();

         myAlertDialog.show();

 }

  

  

public static void registerLocationListener(Context context) {

LocationManager lManager = null;

CurrentLocListener cListener = null;

lManager = (LocationManager) context

.getSystemService(Context.LOCATION_SERVICE);

cListener = new CurrentLocListener(context);

boolean isGpsEnabled = false;

boolean isNetworkEnabled = false;

isGpsEnabled = lManager.isProviderEnabled(LocationManager.GPS_PROVIDER);

isNetworkEnabled = lManager

.isProviderEnabled(LocationManager.NETWORK_PROVIDER);

if (isGpsEnabled) {

lManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0,

cListener);

Location location = lManager

.getLastKnownLocation(LocationManager.GPS_PROVIDER);

if (location != null) {

Utility.setSharedKey("Latitude",

String.valueOf(location.getLatitude()), context);

Utility.setSharedKey("Longitude",

String.valueOf(location.getLongitude()), context);

}

}

if (isNetworkEnabled) {

lManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER,

0, 0, cListener);

Location location = lManager

.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);

if (location != null) {

Utility.setSharedKey("Latitude",

String.valueOf(location.getLatitude()), context);

Utility.setSharedKey("Longitude",

String.valueOf(location.getLongitude()), context);

}

}

}

}

then create CurrentLocListener.java

package com.examplemap.act;

import android.content.Context;

import android.content.Intent;

import android.location.Location;

import android.location.LocationListener;

import android.os.Bundle;

import android.util.Log;

public class CurrentLocListener implements LocationListener {

private static final String TAG = "CurrentLocListener - ";

public static final String ACTION_LOCATION_CHANGED = "tixe.act.ACTION_LOCATION_CHANGED";

Context mContext;

String latitude,longitude,token;

public CurrentLocListener(Context context){

Log.i(TAG, TAG + "CurrentLocListener - ");

mContext = context;

}

@Override

public void onLocationChanged(Location location) {

Log.i(TAG, TAG + "onLocationChanged - Latitude: " + String.valueOf(location.getLatitude()) + " Longitude: " + String.valueOf(location.getLongitude()));

Utility.setSharedKey("Latitude", String.valueOf(location.getLatitude()), mContext);

Utility.setSharedKey("Longitude", String.valueOf(location.getLongitude()), mContext);

Intent mIntent = new Intent(ACTION_LOCATION_CHANGED);

mContext.sendBroadcast(mIntent);

}

@Override

public void onProviderDisabled(String provider) {

Log.i(TAG, TAG + "onProviderDisabled - ");

}

@Override

public void onProviderEnabled(String provider) {

Log.i(TAG, TAG + "onProviderEnabled - ");

}

@Override

public void onStatusChanged(String provider, int status, Bundle extras) {

Log.i(TAG, TAG + "onStatusChanged - ");

}

}

Now,

for get API key go to https://console.developers.google.com ,and create project over there , then in that project go to APIs & auth tab and Enable google maps android v2 and go to next Credential tab and there create Public API access ,and click on Create new key , and click on Android key  here we need SHA1 key

For getting SHA1 key open terminal and write below command

keytool -exportcert -alias androiddebugkey -keystore ~/.android/debug.keystore -list -v

password : android

it will create SHA1 key

use that key in api console project for create Androidkey

put there SHA1key;yourandroidapppackagename

and click on create button it creates API key for map.

your code is ready to run.