release 1.0.3

lib/src/amap_controller.dart

@@ -1,3 +1,15 @@
+// Copyright 2023-2024 kuloud
+// Copyright 2020 lbs.amap.com
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//     http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+
 part of amap_map;
 
 final MethodChannelAMapFlutterMap _methodChannel =
@@ -124,4 +136,14 @@ class AMapController {
   Future<void> clearDisk() {
     return _methodChannel.clearDisk(mapId: mapId);
   }
+
+  /// 经纬度转屏幕坐标
+  Future<ScreenCoordinate> toScreenCoordinate(LatLng latLng) {
+    return _methodChannel.toScreenLocation(latLng, mapId: mapId);
+  }
+
+  /// 屏幕坐标转经纬度
+  Future<LatLng> fromScreenCoordinate(ScreenCoordinate screenCoordinate) {
+    return _methodChannel.fromScreenLocation(screenCoordinate, mapId: mapId);
+  }
 }

lib/src/amap_loader.dart

@@ -1,3 +1,14 @@
+// Copyright 2023-2024 kuloud
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//     http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+
 part of amap_map;
 
 class AMapLoader extends StatefulWidget {

lib/src/core/method_channel_amap_map.dart

@@ -1,4 +1,17 @@
+// Copyright 2023-2024 kuloud
+// Copyright 2020 lbs.amap.com
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//     http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+
 import 'dart:async';
+import 'dart:math';
 
 import 'package:x_amap_base/x_amap_base.dart';
 import 'package:amap_map/src/core/amap_flutter_platform.dart';
@@ -247,4 +260,24 @@ class MethodChannelAMapFlutterMap implements AMapFlutterPlatform {
   }) {
     return channel(mapId).invokeMethod<void>('map#clearDisk');
   }
+
+  Future<ScreenCoordinate> toScreenLocation(
+    LatLng latLng, {
+    required int mapId,
+  }) async {
+    final Map<String, int>? point = await channel(mapId)
+        .invokeMapMethod<String, int>(
+            'map#toScreenCoordinate', latLng.toJson());
+    return ScreenCoordinate(x: point!['x']!, y: point['y']!);
+  }
+
+  Future<LatLng> fromScreenLocation(
+    ScreenCoordinate screenCoordinate, {
+    required int mapId,
+  }) async {
+    final List<dynamic>? latLng = await channel(mapId)
+        .invokeMethod<List<dynamic>>(
+            'map#fromScreenCoordinate', screenCoordinate.toJson());
+    return LatLng(latLng![0] as double, latLng[1] as double);
+  }
 }

lib/src/types/screen_coordinate.dart

@@ -0,0 +1,44 @@
+// Copyright 2013 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:flutter/foundation.dart' show immutable, objectRuntimeType;
+
+/// Represents a point coordinate in the [GoogleMap]'s view.
+///
+/// The screen location is specified in screen pixels (not display pixels) relative
+/// to the top left of the map, not top left of the whole screen. (x, y) = (0, 0)
+/// corresponds to top-left of the [GoogleMap] not the whole screen.
+@immutable
+class ScreenCoordinate {
+  /// Creates an immutable representation of a point coordinate in the [GoogleMap]'s view.
+  const ScreenCoordinate({
+    required this.x,
+    required this.y,
+  });
+
+  /// Represents the number of pixels from the left of the [GoogleMap].
+  final int x;
+
+  /// Represents the number of pixels from the top of the [GoogleMap].
+  final int y;
+
+  /// Converts this object to something serializable in JSON.
+  Object toJson() {
+    return <String, int>{
+      'x': x,
+      'y': y,
+    };
+  }
+
+  @override
+  String toString() => '${objectRuntimeType(this, 'ScreenCoordinate')}($x, $y)';
+
+  @override
+  bool operator ==(Object other) {
+    return other is ScreenCoordinate && other.x == x && other.y == y;
+  }
+
+  @override
+  int get hashCode => Object.hash(x, y);
+}

lib/src/types/types.dart

@@ -1,3 +1,15 @@
+// Copyright 2023-2024 kuloud
+// Copyright 2020 lbs.amap.com
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//     http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+
 export 'camera.dart';
 export 'ui.dart';
 export 'base_overlay.dart';
@@ -10,3 +22,4 @@ export 'polygon_updates.dart';
 export 'bitmap.dart';
 export 'extension_context.dart';
 export 'amap_extension.dart';
+export 'screen_coordinate.dart';