1 files changed, 7 insertions, 2 deletions
diff --git a/android/location/LocalListenerHelper.java b/android/location/LocalListenerHelper.java
index d7d2c513..592d01d2 100644
--- a/android/location/LocalListenerHelper.java
+++ b/android/location/LocalListenerHelper.java
@@ -16,14 +16,14 @@
 
 package android.location;
 
-import com.android.internal.util.Preconditions;
-
 import android.annotation.NonNull;
 import android.content.Context;
 import android.os.Handler;
 import android.os.RemoteException;
 import android.util.Log;
 
+import com.android.internal.util.Preconditions;
+
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.HashMap;
@@ -46,6 +46,11 @@ abstract class LocalListenerHelper<TListener> {
         mTag = name;
     }
 
+    /**
+     * Adds a {@param listener} to the list of listeners on which callbacks will be executed. The
+     * execution will happen on the {@param handler} thread or alternatively in the callback thread
+     * if a  {@code null} handler value is passed.
+     */
     public boolean add(@NonNull TListener listener, Handler handler) {
         Preconditions.checkNotNull(listener);
         synchronized (mListeners) {