It involve modification on mymapview.xml and AndroidMapView.java.
mymapview.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
>
<LinearLayout
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
>
<CheckBox
android:id="@+id/satellite"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=" Satellite "
/>
</LinearLayout>
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
>
<TextView
android:id="@+id/longitude"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Longitude:"
/>
<TextView
android:id="@+id/latitude"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Latitude:"
/>
</LinearLayout>
</LinearLayout>
<com.google.android.maps.MapView
android:id="@+id/mapview"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:clickable="true"
android:apiKey="0pkoAyp5YM52XRlxoRPJeJbP0Tp69yYlrRO7lJg"
/>
<SeekBar
android:id="@+id/zoombar"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:max="20"
android:progress="0"/>
</LinearLayout>
AndroidMapView.java
package com.AndroidMapper;
import java.util.ArrayList;
import java.util.List;
import android.graphics.Canvas;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.view.MotionEvent;
import android.view.View;
import android.widget.CheckBox;
import android.widget.SeekBar;
import android.widget.TextView;
import android.widget.Toast;
import com.google.android.maps.GeoPoint;
import com.google.android.maps.ItemizedOverlay;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapController;
import com.google.android.maps.MapView;
import com.google.android.maps.OverlayItem;
import com.google.android.maps.Projection;
public class AndroidMapView extends MapActivity {
private TextView myLongitude, myLatitude;
private CheckBox mySatellite;
private MapView myMapView;
private MapController myMapController;
private SeekBar myZoomBar;
private void SetSatellite()
{
myMapView.setSatellite(mySatellite.isChecked());
};
@Override
protected void onCreate(Bundle icicle) {
// TODO Auto-generated method stub
super.onCreate(icicle);
setContentView(R.layout.mymapview);
Bundle bundle = this.getIntent().getExtras();
int Mode = bundle.getInt("Mode");
myMapView = (MapView)findViewById(R.id.mapview);
myMapController = myMapView.getController();
myMapView.setBuiltInZoomControls(false);
myLongitude = (TextView)findViewById(R.id.longitude);
myLatitude = (TextView)findViewById(R.id.latitude);
mySatellite = (CheckBox)findViewById(R.id.satellite);
mySatellite.setOnClickListener(mySatelliteOnClickListener);
myZoomBar = (SeekBar)findViewById(R.id.zoombar);
SetZoomLevel();
myZoomBar.setOnSeekBarChangeListener(myZoomBarOnSeekBarChangeListener);
SetSatellite();
if(Mode == 0)
{
GeoPoint initGeoPoint = myMapView.getMapCenter();
CenterLocation(initGeoPoint);
}
else if(Mode == 1)
{
int intLatitude = bundle.getInt("Latitude");
int intLongitude = bundle.getInt("Longitude");
GeoPoint initGeoPoint = new GeoPoint(intLatitude, intLongitude);
CenterLocation(initGeoPoint);
}
}
private SeekBar.OnSeekBarChangeListener myZoomBarOnSeekBarChangeListener =
new SeekBar.OnSeekBarChangeListener(){
public void onProgressChanged(SeekBar seekBar, int progress,
boolean fromUser) {
// TODO Auto-generated method stub
SetZoomLevel();
}
public void onStartTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
public void onStopTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
};
private void SetZoomLevel()
{
int myZoomLevel = myZoomBar.getProgress()+1;
myMapController.setZoom(myZoomLevel);
Toast.makeText(this,
"Zoom Level : " + String.valueOf(myZoomLevel),
Toast.LENGTH_LONG).show();
};
private void placeMarker(int markerLatitude, int markerLongitude)
{
Drawable marker=getResources().getDrawable(
android.R.drawable.ic_menu_myplaces);
marker.setBounds(0, 0, marker.getIntrinsicWidth(),
marker.getIntrinsicHeight());
myMapView.getOverlays().add(new InterestingLocations(marker,
markerLatitude, markerLongitude));
}
@Override
protected boolean isRouteDisplayed() {
// TODO Auto-generated method stub
return false;
}
private void CenterLocation(GeoPoint centerGeoPoint)
{
myMapController.animateTo(centerGeoPoint);
myLongitude.setText("Longitude: "+
String.valueOf((float)centerGeoPoint.getLongitudeE6()/1000000));
myLatitude.setText("Latitude: "+
String.valueOf((float)centerGeoPoint.getLatitudeE6()/1000000));
placeMarker(centerGeoPoint.getLatitudeE6(),
centerGeoPoint.getLongitudeE6());
};
private CheckBox.OnClickListener mySatelliteOnClickListener =
new CheckBox.OnClickListener(){
public void onClick(View v) {
// TODO Auto-generated method stub
SetSatellite();
}
};
class InterestingLocations extends ItemizedOverlay<OverlayItem>{
private List<OverlayItem> locations =
new ArrayList<OverlayItem>();
private Drawable marker;
private OverlayItem myOverlayItem;
boolean MoveMap;
public InterestingLocations(Drawable defaultMarker,
int LatitudeE6, int LongitudeE6) {
super(defaultMarker);
// TODO Auto-generated constructor stub
this.marker=defaultMarker;
// create locations of interest
GeoPoint myPlace = new GeoPoint(LatitudeE6,LongitudeE6);
myOverlayItem = new OverlayItem(myPlace, "My Place", "My Place");
locations.add(myOverlayItem);
populate();
}
@Override
protected OverlayItem createItem(int i) {
// TODO Auto-generated method stub
return locations.get(i);
}
@Override
public int size() {
// TODO Auto-generated method stub
return locations.size();
}
@Override
public void draw(Canvas canvas, MapView mapView,
boolean shadow) {
// TODO Auto-generated method stub
super.draw(canvas, mapView, shadow);
boundCenterBottom(marker);
}
@Override
public boolean onTouchEvent(MotionEvent arg0, MapView arg1) {
// TODO Auto-generated method stub
//super.onTouchEvent(arg0, arg1);
int Action = arg0.getAction();
if (Action == MotionEvent.ACTION_UP){
if(!MoveMap)
{
Projection proj = myMapView.getProjection();
GeoPoint loc = proj.fromPixels((int)arg0.getX(), (int)arg0.getY());
//remove the last marker
myMapView.getOverlays().remove(0);
CenterLocation(loc);
}
}
else if (Action == MotionEvent.ACTION_DOWN){
MoveMap = false;
}
else if (Action == MotionEvent.ACTION_MOVE){
MoveMap = true;
}
return super.onTouchEvent(arg0, arg1);
//return false;
}
}
}
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