Mega Code Archive
Location based service
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package app.test;
import android.os.Bundle;
import android.location.LocationManager;
import android.view.View;
import android.widget.TextView;
import android.content.Context;
import android.widget.Button;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapView;
import com.google.android.maps.Point;
import com.google.android.maps.MapController;
public class Test extends MapActivity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.main);
final MapView myMap = (MapView) findViewById(R.id.myMap);
final MapController myMapController = myMap.getController();
final Button zoomIn = (Button) findViewById(R.id.buttonZoomIn);
zoomIn.setOnClickListener(new Button.OnClickListener() {
public void onClick(View v){
ZoomIn(myMap,myMapController);
}});
final Button zoomOut = (Button) findViewById(R.id.buttonZoomOut);
zoomOut.setOnClickListener(new Button.OnClickListener() {
public void onClick(View v){
ZoomOut(myMap,myMapController);
}});
final Button gpsButton = (Button) findViewById(R.id.gpsButton);
gpsButton.setOnClickListener(new Button.OnClickListener() {
public void onClick(View v){
LoadProviders(myMap,myMapController);
}});
final Button viewMap = (Button) findViewById(R.id.buttonMapView);
viewMap.setOnClickListener(new Button.OnClickListener() {
public void onClick(View v){
ShowMap(myMap,myMapController);
}});
final Button viewSat = (Button) findViewById(R.id.buttonSatView);
viewSat.setOnClickListener(new Button.OnClickListener() {
public void onClick(View v){
ShowSat(myMap,myMapController);
}});
}
public void LoadProviders(MapView mv, MapController mc){
TextView latText = (TextView) findViewById(R.id.latText);
TextView lngText = (TextView) findViewById(R.id.lngText);
LocationManager myManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
Double latPoint = myManager.getCurrentLocation("gps").getLatitude()*1E6;
Double lngPoint = myManager.getCurrentLocation("gps").getLongitude()*1E6;
latText.setText(latPoint.toString());
lngText.setText(lngPoint.toString());
Point myLocation = new Point(latPoint.intValue(),lngPoint.intValue());
mc.centerMapTo(myLocation, false);
mc.zoomTo(9);
mv = null;
}
public void ZoomIn(MapView mv, MapController mc){
if(mv.getZoomLevel()!=21){
mc.zoomTo(mv.getZoomLevel()+ 1);
}
}
public void ZoomOut(MapView mv, MapController mc){
if(mv.getZoomLevel()!=1){
mc.zoomTo(mv.getZoomLevel()- 1);
}
}
public void ShowMap(MapView mv, MapController mc){
if (mv.isSatellite()){
mv.toggleSatellite();
}
}
public void ShowSat(MapView mv, MapController mc){
if (!mv.isSatellite()){
mv.toggleSatellite();
}
}
}
//main.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"
>
<Button
android:id="@+id/gpsButton"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Where Am I"
/>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
>
<TextView
android:id="@+id/latLabel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Latitude: "
/>
<TextView
android:id="@+id/latText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
</LinearLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
>
<TextView
android:id="@+id/lngLabel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Longitude: "
/>
<TextView
android:id="@+id/lngText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
</LinearLayout>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<view class="com.google.android.maps.MapView"
android:id="@+id/myMap"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<Button android:id="@+id/buttonZoomIn"
style="?android:attr/buttonStyleSmall"
android:text="+"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<Button android:id="@+id/buttonMapView"
style="?android:attr/buttonStyleSmall"
android:text="Map"
android:layout_alignRight="@+id/myMap"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<Button android:id="@+id/buttonSatView"
style="?android:attr/buttonStyleSmall"
android:text="Sat"
android:layout_alignRight="@+id/myMap"
android:layout_alignBottom="@+id/myMap"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<Button android:id="@+id/buttonZoomOut"
style="?android:attr/buttonStyleSmall"
android:text="-"
android:layout_alignBottom="@+id/myMap"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</RelativeLayout>
</LinearLayout>
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