addProximityAlert() doesn't fire intent

by Joe77 » Tue, 06 Oct 2009 01:17:56 GMT

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I am new to Android development and I am trying to write an App that
uses the addProximityAlert() method. I know my intent / intent-filters
work (as I can manually fire the intent) however I cannot seem to get
addProximityAlert to fire an intent. I've searched on various forums
and read the API docs numerous times however have not been able to
determine what is wrong with my code. Any ideas?

package com.example.gpsprox;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.widget.Button;
import android.widget.Toast;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class GpsProx extends Activity implements OnClickListener {

private LocationManager lm;
private Proximity prox;
String phoneNo;
String message;
double latitude;
double longitude;
float radius;

private static final String PROXIMITY_ALERT =

/** Called when the activity is first created. */
public void onCreate(Bundle savedInstanceState) {

//---use the LocationManager class to obtain GPS locations---
lm = (LocationManager)

// Use addProximityAlert public method of locationmanager

// Test Latitude / Longitude is at corner of Bute Gardens and
the broadway.

latitude = 51.4935684;
longitude = -0.2223873;
radius = 0;
// Context context;

Intent intent = new Intent(PROXIMITY_ALERT);

PendingIntent pi = PendingIntent.getBroadcast(getApplicationContext
(), 0, intent, 0);

// sendBroadcast(intent);

lm.addProximityAlert(latitude, longitude, radius, -1, pi);

IntentFilter filter = new IntentFilter(PROXIMITY_ALERT);
registerReceiver(new Proximity(), filter);

Button button = (Button)findViewById(;

"Got here!",


// Implement the OnClickListener callback
public void onClick(View v) {

// lm.removeProximityAlert(GpsProx.pi);



public class Proximity extends BroadcastReceiver

public void onReceive(Context context, Intent
intent) {
// TODO Auto-generated method stub

"Got her

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