Android邻近警报不工作

Question

我正在尝试创建一个应用程序，允许您在点击它的信息窗口时为标记设置接近警报。

    googleMap.setOnInfoWindowClickListener(
            new OnInfoWindowClickListener(){
     public void onInfoWindowClick(Marker marker) {
         LatLng clickedMarkerLatLng = marker.getPosition();
                double lat =  clickedMarkerLatLng.latitude;
                double long1 =  clickedMarkerLatLng.longitude;
            Log.e("hello", "Output=" + lat + long1);
               LocationManager lm;
         //   double lat=123,long1=34;    //Defining Latitude & Longitude
              float radius=30;                         //Defining Radius
            lm=(LocationManager) getSystemService(Context.LOCATION_SERVICE);
            Intent i= new Intent("com.example.sleepertrain5.ProximityReceiver");           //Custom Action
            PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), 1, i, PendingIntent.FLAG_CANCEL_CURRENT);
            lm.addProximityAlert(lat, long1, radius, -1, pendingIntent);
     }

这是调用Broadcast Receiver

的代码

public class ProximityReceiver extends BroadcastReceiver {
 @Override
 public void onReceive(Context arg0, Intent arg1) {
 // TODO Auto-generated method stub
 // The reciever gets the Context & the Intent that fired the broadcast as arg0 & agr1 
 String k=LocationManager.KEY_PROXIMITY_ENTERING;
// Key for determining whether user is leaving or entering 
 boolean state=arg1.getBooleanExtra(k, false);
 //Gives whether the user is entering or leaving in boolean form
 if(state){
 // Call the Notification Service or anything else that you would like to do here
 Toast.makeText(arg0, "Welcome to my Area", 600).show();
 }else{
 //Other custom Notification 
Toast.makeText(arg0, "Thank you for visiting my Area,come back again !!", 600).show();
 }
}

以上是Broadcast接收器。这些都不管用，我也不知道为什么。

Answer 1

使用下面的代码表示Pending Intent:

PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(),
                nId, intent,
                PendingIntent.FLAG_UPDATE_CURRENT);

其中nId将是任何唯一的数字，表示特定的待定意图。