This is a simple android application to find the current location and draw it in Mapview.
First you have get the Google Api keyhttps://developers.google.com/android/maps-api-signup
After getting the Api key try the below code..
Showmap.java
package com.example.showmap;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
import
com.google.android.maps.GeoPoint;
import
com.google.android.maps.MapActivity;
import com.google.android.maps.MapController;
import
com.google.android.maps.MapView;
import
com.google.android.maps.Overlay;
import
android.location.Address;
import
android.location.Geocoder;
import
android.location.Location;
import
android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import
android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Point;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.Toast;
public class Showmap extends MapActivity {
private MapView mapView;
private MapController mapController;
private LocationManager locationManager;
private LocationListener locationListener;
@Override
public void onCreate(Bundle
savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.showmap);
LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
locationListener = new GPSLocationListener();
locationManager.requestLocationUpdates
( LocationManager.GPS_PROVIDER, 0, 0,
locationListener);
mapView = (MapView) findViewById(R.id.mapView);
// enable Street view by default
mapView.setStreetView(true);
// enable to show Satellite view
// mapView.setSatellite(true);
// enable to show Traffic on map
// mapView.setTraffic(true);
mapView.setBuiltInZoomControls(true);
mapController = mapView.getController();
mapController.setZoom(16);
}
protected boolean isRouteDisplayed() {
return false;
}
private class GPSLocationListener implements LocationListener
{
@Override
public void
onLocationChanged(Location location) {
if (location != null) {
GeoPoint point = new GeoPoint(
(int) (location.getLatitude() * 1E6),
(int)
(location.getLongitude() * 1E6));
//
Toast.makeText(getBaseContext(),
// "Latitude: "
+ location.getLatitude() +
// " Longitude: " +
location.getLongitude(),
//
Toast.LENGTH_SHORT).show();
mapController.animateTo(point);
mapController.setZoom(16);
// add marker
MapOverlay mapOverlay = new MapOverlay();
mapOverlay.setPointToDraw(point);
List<Overlay>
listOfOverlays = mapView.getOverlays();
listOfOverlays.clear();
listOfOverlays.add(mapOverlay);
String address =
ConvertPointToLocation(point);
Toast.makeText(getBaseContext(),
address, Toast.LENGTH_SHORT).show();
mapView.invalidate();
}
}
public String
ConvertPointToLocation(GeoPoint point)
{
String
address = "";
Geocoder geoCoder = new Geocoder(
getBaseContext(), Locale.getDefault());
try {
List<Address> addresses =
geoCoder.getFromLocation(
point.getLatitudeE6() / 1E6,
point.getLongitudeE6() /
1E6, 1);
if (addresses.size() > 0) {
for (int index = 0; index <
addresses.get(0).getMaxAddressLineIndex(); index++)
address
+= addresses.get(0).getAddressLine(index) + " ";
Log.i(address, address);
}
}
catch (IOException e) {
e.printStackTrace();
}
return address;
}
@Override
public void
onProviderDisabled(String provider) {
}
@Override
public void onProviderEnabled(String
provider) {
}
@Override
public void onStatusChanged(String
provider, int status, Bundle extras) {
}
}
class MapOverlay extends Overlay
{
private GeoPoint pointToDraw;
public void setPointToDraw(GeoPoint
point) {
pointToDraw = point;
}
public GeoPoint
getPointToDraw()
{
return pointToDraw;
}
@Override
public boolean draw(Canvas canvas,
MapView mapView, boolean shadow, long when) {
super.draw(canvas, mapView,
shadow);
//
convert point to pixels
Point screenPts = new Point();
mapView.getProjection().toPixels(pointToDraw, screenPts);
// add marker
Bitmap bmp = BitmapFactory.decodeResource(getResources(),
R.drawable.marker);
canvas.drawBitmap(bmp, screenPts.x, screenPts.y - 24, null); // 24 is the height of
image
return true;
}
}
}
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" >
<com.google.android.maps.MapView
android:id="@+id/mapView"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:apiKey="0YxUAcdaf-88HoJUjDgQS29r9ZAoGKOII8zCXsg"
android:clickable="true"
android:enabled="true" />
</RelativeLayout>
Add
<uses-library android:name="com.google.android.maps"
/> in Android manifest
and give permission
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.INTERNET"/>
Output
