Developing Google Map based application on Android Tablet applications is pretty easy with the help of Google Map API Key.
To start for developing application for Google Map with Android device , First start with Eclipse & locate your debug.keystore file from Window-> Preference-> Android->Build .
Then , find your MD5 key from Keytool.exe(Available in JDK/JRE folder in Program Files) for Google MAP API Key: http://code.google.com/android/add-ons/google-apis/mapkey.html & Run the following command in command prompt:
keytool.exe -list -alias androiddebugkey -keystore
“C:\Users\<username>\.android\debug.keystore” -storepass android
-keypass android
Next , go to http://code.google.com/android/maps-api-signup.html & paste the MD5 Key to find your Google Map API Key.
Source Code Design:
Locations.java:
package com.example.LBS;
import android.app.ListFragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.*;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;
public class Locations extends ListFragment{
String[] locations = {
“Grand Canyon,Arizona(Valley)”,
“Bill Gates’ house”,
“Yosemite National Park,California (Park)”,
};
String[] latlng = {
“36.1125,-113.995833”,
“47.627787,-122.242135”,
“36.849722,-119.5675”,
};
@Override
publicvoid onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
// — Displays the list of locations in the list
setListAdapter(new ArrayAdapter<String>(getActivity(),
android.R.layout.
simple_list_item_1,locations));
}
public void onListItemClick(ListView parent,View v,
int position,long id)
{
Toast.makeText(getActivity(),
“You have selected” + locations[position],
Toast.LENGTH_SHORT).show();
}
@Override
public View onCreateView(LayoutInflater inflater,ViewGroup container,Bundle savedInstanceState){
return inflater.inflate(R.layout.locations, container,false);
}
}
Next Code for ShowMap.java:
package com.example.LBS;
import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MenuInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Toast;
import com.google.android.maps.GeoPoint;
import com.google.android.maps.MapController;
import com.google.android.maps.MapView;
public class ShowMap extends Fragment
{
private MapView mapView;
private MapController mc;
@Override
public View onCreateView(LayoutInflater inflater,
ViewGroup container,Bundle savedInstanceState)
{
return inflater.inflate(R.layout.showmap,container,false);
}
// Displaying Zoom Control on Map
publicvoid onStart() {
super.onStart();
mapView = (MapView)getActivity().findViewById(R.id.mapView);
mapView.setBuiltInZoomControls(true);
mc = mapView.getController();
//mc.zoomIn();
//mc.zoomOut();
mapView.setSatellite(true);
}
}
Next , Insert locations.xml & showmap.xml in res/layout folder:
<?
xmlversion=“1.0”encoding=“utf-8”?>
<
LinearLayoutxmlns:android=“http://schemas.android.com/apk/res/android”
android:layout_width=“fill_parent”
android:layout_height=“fill_parent”
android:orientation=“vertical”>
<TextView
android:layout_width=“fill_parent”
android:layout_height=“wrap_content”
android:text=“List of Locations”
android:textSize=“30sp”
android:textColor=“#adff2f”
/>
<ListView
android:id=“@id/android:list”
android:layout_width=“match_parent”
android:layout_height=“match_parent”
android:layout_weight=“1”
android:drawSelectorOnTop=“false”/>
</
LinearLayout>
showmap.xml:
<?
xmlversion=“1.0”encoding=“utf-8”?>
<
LinearLayoutxmlns:android=“http://schemas.android.com/apk/res/android”
android:layout_width=“fill_parent”
android:layout_height=“fill_parent”
android:orientation=“vertical”>
<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=“0a2QzmzSZf-7SPfgI5CwwHFtZnf86krSsP6qbrw”/>
</
LinearLayout>
Modify main.xml:
<LinearLayoutxmlns:android=http://schemas.android.com/apk/res/android
android:id=“@+id/container”
android:layout_width=“match_parent”
android:layout_height=“match_parent”
android:orientation=“horizontal”>
<fragment
android:name=“com.example.LBS.Locations”
android:id=“@+id/locationFragment”
android:layout_weight=“0.25”
android:layout_width=“20dp”
android:layout_height=“match_parent”/>
<fragment
android:name=“com.example.LBS.ShowMap”
android:id=“@+id/mapFragment”
android:layout_weight=“1”
android:layout_width=“0px”
android:layout_height=“match_parent”/>
</LinearLayout>
Modify MainActivity.Java:
package com.example.LBS;
import android.app.Activity;
import android.os.Bundle;
import com.google.android.maps.MapActivity;
public class LocationBasedServiceActivity extends MapActivity {
//** Called when the activity is first created. */
@Override
publicvoid onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout. main);
}
@Override
protectedboolean isRouteDisplayed() {
// TODO Auto-generated method stub
returnfalse;
}
}
At Last : AndroidManifest.xml:
<?xmlversion=“1.0”encoding=“utf-8”?>
<manifestxmlns:android=http://schemas.android.com/apk/res/android
package=“com.example.LBS”
android:versionCode=“1”
android:versionName=“1.0”>
<uses-sdkandroid:minSdkVersion=“11”/>
<uses-permission android:name=“android.permission.INTERNET”/>
<application
android:icon=“@drawable/ic_launcher”
android:label=“My Location”>
<uses-libraryandroid:name=“com.google.android.maps”/>
<activity
android:label=“@string/app_name”
android:name=“.LocationBasedServiceActivity”>
<intent-filter>
<actionandroid:name=“android.intent.action.MAIN”/>
<categoryandroid:name=“android.intent.category.LAUNCHER”/>
</intent-filter>
</activity>
</application>
</manifest>
That’s it, Lets Check the Application!!…
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