我发现了一些与多个邻近警报相关的线程,但没有一个解决了我的问题=(
我有一个创建多个邻近警报的类(这是重要的代码):
public void activateAlerts(){
Database db = new Database(activity.getApplicationContext());
Cursor cursor = db.getPois();
locationManager = (LocationManager) activity.getSystemService(Context.LOCATION_SERVICE);
int latitudeIndex = cursor.getColumnIndex("latitude");
int longitudeIndex = cursor.getColumnIndex("longitude");
IntentFilter filter = new IntentFilter(PROX_ALERT_INTENT);
while(cursor.moveToNext()){
double latitude = cursor.getDouble(latitudeIndex);
double longitude = cursor.getDouble(longitudeIndex);
Bundle bundle = new Bundle();
bundle.putDouble("latitude",latitude);
bundle.putDouble("longitude",longitude);
Intent intent = new Intent(PROX_ALERT_INTENT);
intent.putExtras(bundle);
Random generator = new Random();
PendingIntent pi = PendingIntent.getBroadcast(activity.getApplicationContext(), generator.nextInt(), intent, 0);
getActivity().registerReceiver(new AlertIntentReceiver(), filter);
locationManager.addProximityAlert(latitude, longitude, 2500, -1, pi);
}
Log.i("ALERT", "ALERT");
}
这是接收者,显示通知:
public void onReceive(Context context, Intent intent) {
Bundle b = intent.getExtras();
double latitude = b.getDouble("latitude");
double longitude = b.getDouble("longitude");
Log.i("ALERT", latitude+","+longitude);
NotificationManager notificationManager =
(NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
Intent intentPi = new Intent(context, MainActivity.class);
PendingIntent pintent = PendingIntent.getActivity(context,0,intentPi,0);
Notification mBuilder =
new NotificationCompat.Builder(context)
.setSmallIcon(R.drawable.ic_launcher)
.setContentTitle(context.getResources().getString(R.string.app_name))
.setAutoCancel(true)
.setContentText(context.getResources().getString(R.string.notification))
.addAction(R.drawable.ic_directions_grey_24dp,"Map",pintent)
.build();
notificationManager.notify(NOTIFICATION_ID,mBuilder);
}
问题是我收到了太多的“BroadcastReceivers”,纬度和经度相同。例如,这是最后一个Logcat信息:
39.495412,-0.354705
39.4605203,-0.3478213
39.4605203,-0.3478213
39.4605203,-0.3478213
39.4605203,-0.3478213
39.4605203,-0.3478213
39.4605203,-0.3478213
39.4605203,-0.3478213
39.4605203,-0.3478213
39.4605203,-0.3478213
39.4605203,-0.3478213
39.4605203,-0.3478213
39.4605203,-0.3478213
39.4605203,-0.3478213
39.4605203,-0.3478213
... [相同的价值]
有什么问题?我怎样才能获得不同的纬度和经度?
答案 0 :(得分:0)
您可能需要使用请求位置更新或位置监听器继续更新位置: