AlarmManager에서 데이터를 가져온 후 오버레이 넣기

Question

Google지도 (v2)를 보여주는 주요 활동이 있습니다. 정기적으로 안드로이드의 알람 관리자를 사용하여 데이터를 보내고 데이터를 검색합니다. 알람 관리자로부터 데이터를 받으면 검색된 위치 정보를 다시 Google지도에 전달해야합니다. 내가 어떻게 할 수 있니? 이 사실을 이해하기 위해 코드가 필요한 경우 알려주십시오.

MapViewActivity.java

import com.google.android.gms.common.ConnectionResult; 
import com.google.android.gms.common.GooglePlayServicesUtil; 
import com.google.android.gms.maps.CameraUpdateFactory; 
import com.google.android.gms.maps.GoogleMap; 

import com.google.android.gms.maps.model.BitmapDescriptorFactory; 
import com.google.android.gms.maps.model.LatLng; 
import com.google.android.gms.maps.model.MarkerOptions; 
import com.google.gson.Gson; 

public class MapViewActivity extends Activity implements LocationListener, 
     SensorEventListener, OnClickListener { 

    GoogleMap googleMap; 

    private boolean started = false; 
    private ArrayList<AccelLocData> sensorData; 
    private SensorManager sensorManager; 
    private Button btnStart, btnStop; 
    private String provider; 

    // File root, dir, sensorFile; 
    FileOutputStream fOut; 
    private Sensor mAccelerometer; 
    private FileWriter writer; 
    private DatabaseHelper databaseHelper; 
    private BroadcastReceiver alarmReceiver; 
    private PendingIntent pendingIntentSender, pendingIntentReceiver; 

    private AlarmManager alarmManager; 
    private Intent alarmIntent,alarmIntent2; 

    // private Button btnUpload; 

    @SuppressLint("NewApi") 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 

     try { 

      databaseHelper = new DatabaseHelper(this); 
      databaseHelper.removeAll(); 


      Log.v("datacount", 
        Integer.toString(databaseHelper.getLocDataCount())); 

      sensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE); 
      mAccelerometer = sensorManager 
        .getDefaultSensor(Sensor.TYPE_ACCELEROMETER); 

      btnStart = (Button) findViewById(R.id.btnStart); 
      btnStop = (Button) findViewById(R.id.btnStop); 
      btnStart.setOnClickListener(this); 
      btnStop.setOnClickListener(this); 
      btnStart.setEnabled(true); 
      btnStop.setEnabled(false); 

      alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE); 

      int status = GooglePlayServicesUtil 
        .isGooglePlayServicesAvailable(getBaseContext()); 
      if (status != ConnectionResult.SUCCESS) { // Google Play Services 
                 // are 
                 // not available 

       int requestCode = 10; 
       Dialog dialog = GooglePlayServicesUtil.getErrorDialog(status, 
         this, requestCode); 
       dialog.show(); 

      } else { // Google Play Services are available 

       // Getting reference to the SupportMapFragment of 
       // activity_main.xml 
       // SupportMapFragment supportMapFragment = (MapFragment) 
       // getFragmentManager().findFragmentById(R.id.map); 

       // Getting GoogleMap object from the fragment 
       googleMap = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)).getMap(); 


       // can use for overlay on the map 
       List<Double> latList = new ArrayList<Double>(); 
       latList.add(145.7309593); 
       latList.add(146.34); 
       latList.add(147.34); 

       List<Double> lonList = new ArrayList<Double>(); 
       lonList.add(-122.6365384); 
       lonList.add(-123.6365384); 
       lonList.add(-124.6365384); 

       for (int i = 0; i < 3; i++) { 
        // LatLng latLng = new LatLng(45.7309593, -122.6365384); 
        LatLng latLng = new LatLng(latList.get(i).doubleValue(), 
          lonList.get(i).doubleValue()); 
        googleMap.setMapType(GoogleMap.MAP_TYPE_NORMAL); 
        googleMap 
          .addMarker(new MarkerOptions() 
            .position(latLng) 
            .title("My Spot") 
            .snippet("This is my spot!") 
            .icon(BitmapDescriptorFactory 
              .defaultMarker(BitmapDescriptorFactory.HUE_AZURE))); 
       } 

       // Enabling MyLocation Layer of Google Map 
       googleMap.setMyLocationEnabled(true); 

       LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE); 

       Criteria criteria = new Criteria(); 
       provider = locationManager.getBestProvider(criteria, true); 
       Location location = locationManager 
         .getLastKnownLocation(provider); 

       if (location != null) { 
        onLocationChanged(location); 
       } 

       locationManager 
         .requestLocationUpdates(provider, 20000, 0, this); 
      } 
     } catch (Exception e) { 
      e.printStackTrace(); 
     } 

    } 

    public void onSensorChanged(SensorEvent event) { 

     if (started) { 

      double x = event.values[0]; 
      double y = event.values[1]; 
      double z = event.values[2]; 

      long timestamp = System.currentTimeMillis(); 

      LocationManager locManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE); 
      Criteria criteria = new Criteria(); 
      criteria.setPowerRequirement(Criteria.POWER_MEDIUM); 
      criteria.setAccuracy(Criteria.ACCURACY_FINE); 

      provider = locManager.getBestProvider(criteria, true); 
      Location location = locManager.getLastKnownLocation(provider); 

      double latitude = 0; 
      double longitude = 0; 
      if (location != null) { 
       latitude = location.getLatitude(); 
       longitude = location.getLongitude(); 
      } 
      AccelLocData accelLocData = new AccelLocData(timestamp, x, y, z, 
        latitude, longitude); 

      // Log.d("X data","data x:" + data.getX()); 

      try { 
       // writer.write(data.toString()); 
       if (databaseHelper != null) 
       databaseHelper.insertLocData(accelLocData); 
      } catch (Exception e) { 
       // TODO Auto-generated catch block 
       e.printStackTrace(); 
      } 

     } 
    } 

    @Override 
    public void onLocationChanged(Location location) { 

     TextView tvLocation = (TextView) findViewById(R.id.tv_location); 

     // Getting latitude of the current location 
     double latitude = location.getLatitude(); 

     // Getting longitude of the current location 
     double longitude = location.getLongitude(); 

     // Creating a LatLng object for the current location 
     LatLng latLng = new LatLng(latitude, longitude); 

     // Showing the current location in Google Map 
     googleMap.moveCamera(CameraUpdateFactory.newLatLng(latLng)); 

     // Zoom in the Google Map 
     googleMap.animateCamera(CameraUpdateFactory.zoomTo(15)); 






    } 

    @Override 
    public void onClick(View v) { 
     switch (v.getId()) { 
     case R.id.btnStart: 

      Context context = getApplicationContext(); 
      alarmIntent = new Intent(context, AccelLocSender.class); 

      AlarmManager alarmManager = (AlarmManager) context 
        .getSystemService(Context.ALARM_SERVICE); 
      pendingIntentSender = PendingIntent.getBroadcast(context, 0, 
        alarmIntent, 0); 

      alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, 
        System.currentTimeMillis(), 60000, pendingIntentSender); 

      alarmIntent2 = new Intent(context, AccelLocReceiver.class); 
      pendingIntentReceiver = PendingIntent.getBroadcast(context, 0, 
        alarmIntent2, 0); 
      alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, 
        System.currentTimeMillis(), 30000, pendingIntentReceiver); 

      btnStart.setEnabled(false); 
      btnStop.setEnabled(true); 
      Log.d("startbutton", "cam on click of start"); 
      started = true; 

      // delete all files.. 
      // start thread to send data 

      sensorManager.registerListener(this, mAccelerometer, 
        SensorManager.SENSOR_DELAY_FASTEST); 
      break; 
     case R.id.btnStop: 
      try { 
       btnStart.setEnabled(true); 
       btnStop.setEnabled(false); 
       // btnUpload.setEnabled(true); 
       started = false; 

       sensorManager.unregisterListener(this); 

       Context context1 = getApplicationContext(); 
       AlarmManager alarmManager1 = (AlarmManager) context1 
         .getSystemService(Context.ALARM_SERVICE); 
       alarmManager1.cancel(pendingIntentSender); 
       alarmManager1.cancel(pendingIntentReceiver); 

      // System.exit(0); 

       } catch (Exception e) { 
       e.printStackTrace(); 
      } 
      break; 
     default: 
      break; 
     } 

    } 

    protected void onPause() { 
     super.onPause(); 

     /* 
     * if (writer != null) { try { writer.close(); } catch (IOException e) { 
     * // TODO Auto-generated catch block e.printStackTrace(); } } 
     */ 
    } 

    protected void onResume() { 
     super.onResume(); 
     /* 
     * try { Log.d("onresume","called onresume"); writer = new 
     * FileWriter(sensorFile, true); } catch (IOException e) { // TODO 
     * Auto-generated catch block e.printStackTrace(); } 
     */ 
    } 

    @Override 
    public void onProviderDisabled(String arg0) { 
     // TODO Auto-generated method stub 

    } 

    @Override 
    public void onProviderEnabled(String provider) { 
     // TODO Auto-generated method stub 

    } 

    @Override 
    public void onStatusChanged(String provider, int status, Bundle extras) { 
     // TODO Auto-generated method stub 

    } 

    @Override 
    public void onAccuracyChanged(Sensor arg0, int arg1) { 
     // TODO Auto-generated method stub 

    } 

} 

AccelLocReceiver.java

public class AccelLocReceiver extends BroadcastReceiver { 



    @Override 
    public void onReceive(Context arg0, Intent arg1) { 

     System.out.println("cmg in AccelLocReceiver"); 
     Log.i("Alarm receiver", "Came in alarm receiver"); 
     receiveDataFromServer(); 

    } 

    private void receiveDataFromServer() { 
     try { 
     // I get this successfully location details here. I use httpclient to send data to php webserver. 
     } catch (Exception e) { 
      e.printStackTrace(); 
     } 

    } 



} 

마찬가지로 AccelLocSender 클래스는 데이터를 전송한다.

Answer 1

당신은 상당히 엉망인 응용 프로그램 아키텍처를 가지고 있습니다.

1. 모델이 필요합니다. Activity 외부에 존재하는 것. Application 하위 클래스가이를위한 좋은 장소입니다.
2. BroadcastReceiver.onReceive에 네트워크를 설정하면 안됩니다. Service을 시작하거나 Application에있는 함수를 호출하면 백그라운드에서 앱이 두려워하지 않을 경우 Thread이 실행됩니다.
3. 네트워크에서 가져온 데이터를 로컬 SQLite DB에 저장하십시오.
4. 모델에 대한 관찰자 패턴을 작성하고 Activity을 수신기로 등록하십시오. 콜백을 받으면 googleMap 개체를 사용하여 원하는 개체를 만듭니다.