Android Google Map Integration

Below are the steps for Integrating google map into your android application

1.Getting the Google Api(Libraries)

In Eclipse Goto Window->Android SDK Manager , then select Google Api's(if not installed) then select Install packeges . 
This will give you the jar files required to integrate Google map

2.Obtaining a Maps API Key

Beginning with the Android SDK release v1.0, you need to apply for a free Google Maps API key before you can integrate Google Maps into your Android application. To apply for a key, you need to follow the series of steps outlined below. You can also refer to Google's detailed documentation on the process at http://code.google.com/android/toolbox/apis/mapkey.html

First, if you are testing the application on the Android emulator, locate the SDK debug certificate located in the default folder of "C:\Documents and Settings\<username>\Local Settings\Application Data\Android". The filename of the debug keystore is debug.keystore. For deploying to a real Android device, substitute the debug.keystore file with your own keystore file. In a future article I will discuss how you can generate your own keystore file.

For simplicity, copy this file (debug.keystore) to a folder in C:\ (for example, create a folder called "C:\Android").

Using the debug keystore, you need to extract its MD5 fingerprint using the Keytool.exe application included with your JDK installation. This fingerprint is needed to apply for the free Google Maps key. You can usually find the Keytool.exefrom the "C:\Program Files\Java\<JDK_version_number>\bin" folder.

Issue the following command to extract the MD5 fingerprint.

keytool.exe -list -alias androiddebugkey -keystore "C:\android\debug.keystore" -storepass android -keypass android

3.Include jar Files into your Project for maps

      Right click on your project and go to build path and then add external archives.

      Locate your sdk.  

      android-sdk-windows\add-ons\addon_google_apis_google_inc_8\libs\maps

4.Displaying the Map

Below are the code for integrating Google Map into android app


Manifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="net.learn2develop.GoogleMaps"
      android:versionCode="1"
      android:versionName="1.0.0">
    <application android:icon="@drawable/icon" android:label="@string/app_name">
 
    <uses-library android:name="com.google.android.maps" />  
 
        <activity android:name=".MapsActivity"
                  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>
 
    <uses-permission android:name="android.permission.INTERNET" />
 
</manifest>
</xml>


Main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent">
 
    <com.google.android.maps.MapView 
        android:id="@+id/mapView"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:enabled="true"
        android:clickable="true"
        android:apiKey="0l4sCTTyRmXTNo7k8DREHvEaLar2UmHGwnhZVHQ"
        />
 
</RelativeLayout>

MapsActivityDemo.java (your Activity class)
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapView;
import android.os.Bundle;
 
public class MapsActivityDemo extends MapActivity 
{    
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }
 
    @Override
    protected boolean isRouteDisplayed() {
        return false;
    }
}