我正在尝试在我的应用程序中实现接近警报通知服务，并且我希望在我收到通知的任何位置附近时收集 POI（兴趣点）。我不断收到此错误
07-18 12:56:27.069: W/dalvikvm(12518): threadid=1: thread exiting with uncaught exception (group=0x41ee1930)
07-18 12:56:27.079: E/AndroidRuntime(12518): FATAL EXCEPTION: main
07-18 12:56:27.079: E/AndroidRuntime(12518): java.lang.RuntimeException: Error receiving broadcast Intent { act=com.phlok.proximityalarm.broadcast flg=0x10 (has extras) } in com.phlok.multiplealert.ProximityIntentReceiver@42268478
07-18 12:56:27.079: E/AndroidRuntime(12518): at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:768)
07-18 12:56:27.079: E/AndroidRuntime(12518): at android.os.Handler.handleCallback(Handler.java:725)
07-18 12:56:27.079: E/AndroidRuntime(12518): at android.os.Handler.dispatchMessage(Handler.java:92)
07-18 12:56:27.079: E/AndroidRuntime(12518): at android.os.Looper.loop(Looper.java:137)
07-18 12:56:27.079: E/AndroidRuntime(12518): at android.app.ActivityThread.main(ActivityThread.java:5231)
07-18 12:56:27.079: E/AndroidRuntime(12518): at java.lang.reflect.Method.invokeNative(Native Method)
07-18 12:56:27.079: E/AndroidRuntime(12518): at java.lang.reflect.Method.invoke(Method.java:511)
07-18 12:56:27.079: E/AndroidRuntime(12518): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:795)
07-18 12:56:27.079: E/AndroidRuntime(12518): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:562)
07-18 12:56:27.079: E/AndroidRuntime(12518): at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:106)
07-18 12:56:27.079: E/AndroidRuntime(12518): at dalvik.system.NativeStart.main(Native Method)
07-18 12:56:27.079: E/AndroidRuntime(12518): Caused by: java.lang.NullPointerException
07-18 12:56:27.079: E/AndroidRuntime(12518): at com.phlok.multiplealert.ProximityIntentReceiver.onReceive(ProximityIntentReceiver.java:35)
07-18 12:56:27.079: E/AndroidRuntime(12518): at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:758)
07-18 12:56:27.079: E/AndroidRuntime(12518): ... 10 more
这是我的代码：
public class ProximityAlertService extends Service {
private static final String TAG = "ProximityAlertService";
private static final long POINT_RADIUS = 100; // in Meters
private static final long PROX_ALERT_EXPIRATION = -1; // It will never expire
private static final String PROX_ALERT_INTENT = "com.phlok.proximityalarm.broadcast";
ArrayList <LatLonPair> positions;
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
Toast.makeText(this,"Start",Toast.LENGTH_LONG).show();
createPositions();
registerIntents();
Log.d(TAG,"adding...");
return super.onStartCommand(intent, flags, startId);
}
private void setProximityAlert(double latitude, double longitude, final long eventID, int requestCode) {
LocationManager locationManager= (LocationManager) getSystemService(Context.LOCATION_SERVICE);
Bundle extras = new Bundle();
extras.putLong("name", eventID);
extras.putInt("id", requestCode);
Intent intent = new Intent(PROX_ALERT_INTENT);
intent.putExtra(PROX_ALERT_INTENT, extras);
PendingIntent proximityIntent = PendingIntent.getBroadcast(this, requestCode , intent, PendingIntent.FLAG_CANCEL_CURRENT);
locationManager.addProximityAlert(
latitude, // the latitude of the central point of the alert region
longitude, // the longitude of the central point of the alert region
POINT_RADIUS, // the radius of the central point of the alert region, in meters
PROX_ALERT_EXPIRATION, // time for this proximity alert, in milliseconds, or -1 to indicate no expiration
proximityIntent // will be used to generate an Intent to fire when entry to or exit from the alert region is detected
);
requestCode++;
Log.d(TAG,String.valueOf(latitude));
IntentFilter filter = new IntentFilter(PROX_ALERT_INTENT);
registerReceiver(new ProximityIntentReceiver(), filter);
}
private void createPositions() {
positions = new ArrayList<LatLonPair>();
positions.add(new LatLonPair(53.4010626,-6.1804462));
positions.add(new LatLonPair(53.4513078,-6.1537115));
positions.add(new LatLonPair(53.4265686,-6.1715556));
Log.d(TAG,"Locations added...");
}
private void registerIntents() {
for(int i = 0; i < positions.size(); i++) {
LatLonPair latLon = positions.get(i);
setProximityAlert(latLon.getLatitude(),latLon.getLongitude(),i+1,i);
Log.d(TAG,"Intenets Registered");
}
}
那是广播接收器代码
public class ProximityIntentReceiver extends BroadcastReceiver {
// private static final int NOTIFICATION_ID = 1000;
@SuppressWarnings("deprecation")
@Override
public void onReceive(Context context, Intent intent) {
String key = LocationManager.KEY_PROXIMITY_ENTERING;
Boolean entering = intent.getBooleanExtra(key, false);
if (entering) {
Log.d(getClass().getSimpleName(), "entering");
}else {
Log.d(getClass().getSimpleName(), "exiting");
}
NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
Intent notificationIntent = new Intent(context, ProximityAlertService.class);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, notificationIntent, 0);
Notification notification = createNotification();
notification.setLatestEventInfo(context, "Phlok Alert!", "Omar,You are near" + intent.getBundleExtra("com.phlok.multiplealert.").get("name"), pendingIntent);
notificationManager.notify( intent.getBundleExtra("com.phlok.multiplealert.").getInt("id"), notification);
}
private Notification createNotification() {
Notification notification = new Notification();
notification.icon = R.drawable.ic_launcher;
notification.when = System.currentTimeMillis();
notification.flags |= Notification.FLAG_AUTO_CANCEL;
notification.flags |= Notification.FLAG_SHOW_LIGHTS;
notification.defaults |= Notification.DEFAULT_VIBRATE;
notification.defaults |= Notification.DEFAULT_LIGHTS;
notification.ledARGB = Color.WHITE;
notification.ledOnMS = 1500;
notification.ledOffMS = 1500;
return notification;
}
}
任何帮助都感激不尽
谢谢