1 files changed, 7 insertions, 1 deletions
diff --git a/src/org/traccar/geocode/ReverseGeocoder.java b/src/org/traccar/geocode/ReverseGeocoder.java
index 336a26d83..1367e82dc 100644
--- a/src/org/traccar/geocode/ReverseGeocoder.java
+++ b/src/org/traccar/geocode/ReverseGeocoder.java
@@ -17,6 +17,12 @@ package org.traccar.geocode;
 
 public interface ReverseGeocoder {
 
-    String getAddress(AddressFormat format, double latitude, double longitude);
+    public interface ReverseGeocoderCallback {
+
+        void onResult(String address);
+
+    }
+
+    void getAddress(AddressFormat format, double latitude, double longitude, ReverseGeocoderCallback callback);
 
 }