I have already gone through many SO posts , but nothing has worked yet for me. I am trying to trigger notification when device enters a geofence . But it does not trigger until app is opened. How would it be possible to trigger notification when app is in backgroud ?
Geofencing:
public class Geofencing implements ResultCallback {
// Constants
public static final String TAG = Geofencing.class.getSimpleName();
private static final float GEOFENCE_RADIUS = 50; // 50 meters
private static final long GEOFENCE_TIMEOUT = 24 * 60 * 60 * 1000; // 24 hours
private List<Geofence> mGeofenceList;
private PendingIntent mGeofencePendingIntent;
private GoogleApiClient mGoogleApiClient;
private Context mContext;
public Geofencing(Context context, GoogleApiClient client) {
mContext = context;
mGoogleApiClient = client;
mGeofencePendingIntent = null;
mGeofenceList = new ArrayList<>();
}
/***
* Registers the list of Geofences specified in mGeofenceList with Google Place Services
* Uses {@code #mGoogleApiClient} to connect to Google Place Services
* Uses {@link #getGeofencingRequest} to get the list of Geofences to be registered
* Uses {@link #getGeofencePendingIntent} to get the pending intent to launch the IntentService
* when the Geofence is triggered
* Triggers {@link #onResult} when the geofences have been registered successfully
*/
public void registerAllGeofences() {
// Check that the API client is connected and that the list has Geofences in it
if (mGoogleApiClient == null || !mGoogleApiClient.isConnected() ||
mGeofenceList == null || mGeofenceList.size() == 0) {
return;
}
try {
LocationServices.GeofencingApi.addGeofences(
mGoogleApiClient,
getGeofencingRequest(),
getGeofencePendingIntent()
).setResultCallback(this);
} catch (SecurityException securityException) {
// Catch exception generated if the app does not use ACCESS_FINE_LOCATION permission.
Log.e(TAG, securityException.getMessage());
}
}
/***
* Unregisters all the Geofences created by this app from Google Place Services
* Uses {@code #mGoogleApiClient} to connect to Google Place Services
* Uses {@link #getGeofencePendingIntent} to get the pending intent passed when
* registering the Geofences in the first place
* Triggers {@link #onResult} when the geofences have been unregistered successfully
*/
public void unRegisterAllGeofences() {
if (mGoogleApiClient == null || !mGoogleApiClient.isConnected()) {
return;
}
try {
LocationServices.GeofencingApi.removeGeofences(
mGoogleApiClient,
// This is the same pending intent that was used in registerGeofences
getGeofencePendingIntent()
).setResultCallback(this);
} catch (SecurityException securityException) {
// Catch exception generated if the app does not use ACCESS_FINE_LOCATION permission.
Log.e(TAG, securityException.getMessage());
}
}
/***
* Updates the local ArrayList of Geofences using data from the passed in list
* Uses the Place ID defined by the API as the Geofence object Id
*
* @param places the PlaceBuffer result of the getPlaceById call
*/
public void updateGeofencesList(PlaceBuffer places) {
mGeofenceList = new ArrayList<>();
if (places == null || places.getCount() == 0) return;
for (Place place : places) {
// Read the place information from the DB cursor
String placeUID = place.getId();
double placeLat = place.getLatLng().latitude;
double placeLng = place.getLatLng().longitude;
// Build a Geofence object
Geofence geofence = new Geofence.Builder()
.setRequestId(placeUID)
.setExpirationDuration(GEOFENCE_TIMEOUT)
.setCircularRegion(placeLat, placeLng, GEOFENCE_RADIUS)
.setTransitionTypes(Geofence.GEOFENCE_TRANSITION_ENTER | Geofence.GEOFENCE_TRANSITION_EXIT)
.build();
// Add it to the list
mGeofenceList.add(geofence);
}
}
/***
* Creates a GeofencingRequest object using the mGeofenceList ArrayList of Geofences
* Used by {@code #registerGeofences}
*
* @return the GeofencingRequest object
*/
private GeofencingRequest getGeofencingRequest() {
GeofencingRequest.Builder builder = new GeofencingRequest.Builder();
builder.setInitialTrigger(GeofencingRequest.INITIAL_TRIGGER_ENTER);
builder.addGeofences(mGeofenceList);
return builder.build();
}
/***
* Creates a PendingIntent object using the GeofenceTransitionsIntentService class
* Used by {@code #registerGeofences}
*
* @return the PendingIntent object
*/
private PendingIntent getGeofencePendingIntent() {
// Reuse the PendingIntent if we already have it.
if (mGeofencePendingIntent != null) {
return mGeofencePendingIntent;
}
//Intent intent = new Intent(mContext, GeofenceBroadcastReceiver.class);
Intent intent = new Intent("com.aol.android.geofence.ACTION_RECEIVE_GEOFENCE");
mGeofencePendingIntent = PendingIntent.getBroadcast(mContext, 0, intent, PendingIntent.
FLAG_UPDATE_CURRENT);
return mGeofencePendingIntent;
}
@Override
public void onResult(@NonNull Result result) {
Log.e(TAG, String.format("Error adding/removing geofence : %s",
result.getStatus().toString()));
}
}
GeofenceBroadcastReceiver:
public class GeofenceBroadcastReceiver extends BroadcastReceiver {
public static final String TAG = GeofenceBroadcastReceiver.class.getSimpleName();
/***
* Handles the Broadcast message sent when the Geofence Transition is triggered
* Careful here though, this is running on the main thread so make sure you start an AsyncTask for
* anything that takes longer than say 10 second to run
*
* @param context
* @param intent
*/
@Override
public void onReceive(Context context, Intent intent) {
// Get the Geofence Event from the Intent sent through
Log.d("onRecccc","trt");
GeofencingEvent geofencingEvent = GeofencingEvent.fromIntent(intent);
if (geofencingEvent.hasError()) {
Log.e(TAG, String.format("Error code : %d", geofencingEvent.getErrorCode()));
return;
}
// Get the transition type.
int geofenceTransition = geofencingEvent.getGeofenceTransition();
// Check which transition type has triggered this event
// Send the notification
sendNotification(context, geofenceTransition);
}
/**
* Posts a notification in the notification bar when a transition is detected
* Uses different icon drawables for different transition types
* If the user clicks the notification, control goes to the MainActivity
*
* @param context The calling context for building a task stack
* @param transitionType The geofence transition type, can be Geofence.GEOFENCE_TRANSITION_ENTER
* or Geofence.GEOFENCE_TRANSITION_EXIT
*/
private void sendNotification(Context context, int transitionType) {
// Create an explicit content Intent that starts the main Activity.
Intent notificationIntent = new Intent(context, MainActivity.class);
// Construct a task stack.
TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);
// Add the main Activity to the task stack as the parent.
stackBuilder.addParentStack(MainActivity.class);
// Push the content Intent onto the stack.
stackBuilder.addNextIntent(notificationIntent);
// Get a PendingIntent containing the entire back stack.
PendingIntent notificationPendingIntent =
stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);
// Get a notification builder
NotificationCompat.Builder builder = new NotificationCompat.Builder(context);
// Check the transition type to display the relevant icon image
if (transitionType == Geofence.GEOFENCE_TRANSITION_ENTER) {
builder.setSmallIcon(R.drawable.ic_near_me_black_24dp)
.setLargeIcon(BitmapFactory.decodeResource(context.getResources(),
R.drawable.ic_near_me_black_24dp))
.setContentTitle("You have a task nearby")
.setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION))
//Vibration
.setVibrate(new long[]{300,300})
.setLights(Color.RED, 3000, 3000);
//LED
} else if (transitionType == Geofence.GEOFENCE_TRANSITION_EXIT) {
builder.setSmallIcon(R.drawable.ic_near_me_black_24dp)
.setLargeIcon(BitmapFactory.decodeResource(context.getResources(),
R.drawable.ic_near_me_black_24dp))
.setContentTitle(context.getString(R.string.back_to_normal));
}
// Continue building the notification
builder.setContentText(context.getString(R.string.touch_to_relaunch));
builder.setContentIntent(notificationPendingIntent);
// Dismiss notification once the user touches it.
builder.setAutoCancel(true);
// Get an instance of the Notification manager
NotificationManager mNotificationManager =
(NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
// Issue the notification
mNotificationManager.notify(0, builder.build());
}
}
EDIT :
@Override
protected void onHandleIntent(@Nullable Intent intent) {
//Create geofences from SharedPreferences/network responses
//Connect to location services
mClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.addApi(Places.GEO_DATA_API)
.addApi(Places.PLACE_DETECTION_API)
.build();
mGeofencing = new Geofencing(this, mClient);
GeofencingEvent geofencingEvent = GeofencingEvent.fromIntent(intent);
if (geofencingEvent.hasError()) {
Log.e("dsadsa", String.format("Error code : %d", geofencingEvent.getErrorCode()));
return;
}
}
public void onConnected(Bundle bundle) {
//Add geofences
mGeofencing.registerAllGeofences();
}
I have done this so far , and still no luck ..