diff --git a/lib/address/address_map_page.dart b/lib/address/address_map_page.dart
index 2dc06eae..ec5beee9 100644
--- a/lib/address/address_map_page.dart
+++ b/lib/address/address_map_page.dart
@@ -83,7 +83,7 @@ class _AddressMapPage extends State<AddressMapPage> {
               .then((value) {
             saveLatLng(value);
             if (_mapController != null) {
-              this.latLng = value;
+              this.latLng = Platform.isIOS ? value : latLng;
               addMarker();
               _mapController.updateMapOptions(
                 BMFMapOptions(
@@ -284,10 +284,10 @@ class _AddressMapPage extends State<AddressMapPage> {
 
       bmfMarker = BMFMarker(
         position: latLng,
-        screenPointToLock: BMFPoint(window.physicalSize.width / 2,
-            window.physicalSize.height / 4),
+        screenPointToLock: BMFPoint((Platform.isIOS ? MediaQuery.of(context).size.width : window.physicalSize.width) / 2,
+            Platform.isIOS ? MediaQuery.of(context).size.height : window.physicalSize.height / 4),
         isLockedToScreen: true,
-        centerOffset: BMFPoint(1, 1),
+        centerOffset: BMFPoint(0.5, 0.95),
         enabled: false,
         icon: "assets/image/icon_map_marker.png",
         draggable: false,
@@ -296,8 +296,8 @@ class _AddressMapPage extends State<AddressMapPage> {
     }
     bmfMarker.updateIsLockedToScreen(
         true,
-        BMFPoint(window.physicalSize.width / 2,
-            window.physicalSize.height / 4));
+        BMFPoint((Platform.isIOS ? MediaQuery.of(context).size.width : window.physicalSize.width) / 2,
+            (Platform.isIOS ? MediaQuery.of(context).size.height : window.physicalSize.height) / 4));
   }
 
   saveLatLng(BMFCoordinate latLng) async {