1. Location-based koji

2. Agenda

Android App

-

Location-based API

3. Android App

public classBomberManextendsActivity {

• @Override

• public voidonCreate(Bundle icicle) {

• • super .onCreate(icicle);

• • setContentView(R.layout. main );

• • Button joinButton = (Button) findViewById(R.id. join );

• • joinButton.setOnClickListener( newView.OnClickListener() {

• • public voidonClick(View view) {

• • • startActivity( newIntent(BomberMan. this , UserConfig. class ));

• • }});

• }

}

4. Android App

< LinearLayout ... >

• < RelativeLayout ... >

• • < Buttonandroid:id = "@+id/join" ... />

• RelativeLayout >

LinearLayout >

5. -

• /data/misc/location/gps

6. -

( )

• Class

• Kml

• • Google Earth

• nmea

• • NMEA 0183

• Track

7. -

< uses-permission

android:name = "android.permission.

• ACCESS_LOCATION"/>

< uses-permission

android:name = "android.permission.

• ACCESS_GPS"/>

8. API-

LocationManagerlocationManager = (LocationManager) getSystemService(Context. LOCATION_SERVICE );

LocationProvidermyProvider =null ;

for(LocationProvider provider : locationManager.getProviders()) {

• myProvider = provider;

}

final Locationlocation = locationManager.

• getCurrentLocation(myProvider.getName());

9. API-Google Map

public classBomberManMapextendsMapActivity{

.....

• this . mapView=newMapView( this ) {

• @Override

• public booleanonTouchEvent(MotionEvent ev) {

• • return false ;}};

• this .setContentView( mapView );

}

10. API- listener

IntenetReceiver

classMyIntentReceiverextendsIntentReceiver {

• @Override public voidonReceiveIntent(Context context, Intent intent) {

• • Location location = (Location) intent.getExtras().get( "location" );

• • doublelat = location.getLatitude() * 1E6;

• • doublelon = location.getLongitude() * 1E6;

• • finalPoint point =newPoint(( int ) lat, ( int ) lon);

• • mapView .getController().centerMapTo(point,true );

• • mapView .invalidate();

• }}

11. API- listener

StringMY_LOCATION_CHANGED_ACTION=newString( "android.intent.action.LOCATION_CHANGED" );

IntentFiltermyIntentFilter=newIntentFilter( MY_LOCATION_CHANGED_ACTION );

.....

12. API- listener

this . locationManager .requestUpdates(

• myProvider,// provider

• MINIMUM_TIME_BETWEEN_UPDATE ,//

• MINIMUM_DISTANCECHANGE_FOR_UPDATE ,//

• newIntent( MY_LOCATION_CHANGED_ACTION ));

• ...

this .registerReceiver( this . myIntentReceiver ,this . myIntentFilter );

13.