feat : add extension to support convert list of geo to string and str…

…ing to list of geo
liodali · Feb 11, 2022 · 805aaed · 805aaed
1 parent 98a21ba
commit 805aaed
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Showing 5 changed files with 44 additions and 4 deletions.
diff --git a/flutter_osm_interface/lib/src/common/utilities.dart b/flutter_osm_interface/lib/src/common/utilities.dart
@@ -2,8 +2,10 @@ import 'dart:convert';
 import 'dart:typed_data';
 import 'dart:ui' as ui;
 
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/rendering.dart';
+import 'package:google_polyline_algorithm/google_polyline_algorithm.dart';
 
 import '../types/types.dart';
 
@@ -19,6 +21,32 @@ extension ExtGeoPoint on GeoPoint {
   }
 }
 
+extension ExtListGeoPoint on List<GeoPoint> {
+  Future<String> encodedToString() async {
+    final List<GeoPoint> listGeos = this;
+    return compute((List<GeoPoint> geoPoints) async {
+      final coordinates = geoPoints.map((e) => e.toListNum()).toList();
+      return encodePolyline(coordinates);
+    }, listGeos);
+  }
+}
+
+extension TransformEncodedPolyLineToListGeo on String {
+  Future<List<GeoPoint>> toListGeo() async {
+    final String polylineEncoded = this;
+    try {
+      return await compute((String encoded) {
+        final listPoints = decodePolyline(encoded);
+        return listPoints
+            .map((e) => GeoPoint(latitude: e.last.toDouble(), longitude: e.first.toDouble()))
+            .toList();
+      }, polylineEncoded);
+    } catch (e) {
+      return [];
+    }
+  }
+}
+
 extension ColorMap on Color {
   Map<String, List<int>> toMap(String key) {
     return {

diff --git a/flutter_osm_interface/pubspec.yaml b/flutter_osm_interface/pubspec.yaml
@@ -1,6 +1,6 @@
 name: flutter_osm_interface
 description: osm flutter controller and utilities.
-version: 0.1.16
+version: 0.1.17
 homepage: https://github.com/liodali/osm_flutter
 
 environment:

diff --git a/lib/flutter_osm_plugin.dart b/lib/flutter_osm_plugin.dart
@@ -1,9 +1,11 @@
 library osm_flutter;
 
+export 'package:flutter_osm_interface/src/common/utilities.dart'
+    hide Uint8ListConvert,ListMultiRoadConf, ColorMap,capturePng;
 export 'package:flutter_osm_interface/src/map_controller/base_map_controller.dart'
     hide OSMControllerOfBaseMapController, PrivateBaseMapController;
-export 'package:flutter_osm_interface/src/types/types.dart';
 export 'package:flutter_osm_interface/src/mixin/interface_mixin.dart';
+export 'package:flutter_osm_interface/src/types/types.dart';
 
 export 'src/common/geo_point_exception.dart';
 export 'src/common/road_exception.dart';

diff --git a/lib/src/osm_flutter.dart b/lib/src/osm_flutter.dart
@@ -6,8 +6,8 @@ import 'controller/map_controller.dart';
 import 'interface_osm/base_osm_platform.dart';
 import 'widgets/copyright_osm_widget.dart';
 
-typedef OnGeoPointClicked = void Function(GeoPoint);
-typedef OnLocationChanged = void Function(GeoPoint);
+// typedef OnGeoPointClicked = void Function(GeoPoint);
+// typedef OnLocationChanged = void Function(GeoPoint);
 
 /// Principal widget to show OSMMap using osm api
 /// you can track you current location,show static points like position of your stores

diff --git a/test/flutter_osm_plugin_test.dart b/test/flutter_osm_plugin_test.dart
@@ -19,4 +19,14 @@ void main() {
     List<SearchInfo> suggestions = await addressSuggestion("berlin");
     expect(suggestions.length, 5);
   });
+
+  test("test parse route Encoded to ListGeo", () async {
+    String routeEncoded =
+        "mfp_I__vpAYBO@K@[BuBRgBLK@UBMMC?AAKAe@FyBTC@E?IDKDA@K@]BUBSBA?E@E@A@KFUBK@mAL{CZQ@qBRUBmAFc@@}@Fu@DG?a@B[@qAF_AJ[D_E`@SBO@ODA@UDA?]JC?uBNE?OAKACa@AI]mCCUE[AK[iCWqB[{Bk@sE_@_DAICSAOIm@AIQuACOQyAG[Gc@]wBw@aFKu@y@oFCMAOIm@?KAQ?KIuDQmHE}BBQ?Q?OCq@?I?IASAg@OuF?OAi@?c@@c@Du@r@cH@U@I@G@K?E~@kJRyBf@uE@KFi@RaBBMFc@Da@@ETaC@QJ{@Ny@Ha@RiAfBuJF]DOh@yAHSf@aADIR_@\\q@w@y@e@a@CCUQaCkB{@y@GESO?_@?C?[IoCIgDMsEAYOkEAQ@Yj@kENg@ZyBBIHm@FY@GBUJk@JmA?c@?QAQG]LKDEDCHOL]FO^uA@GTu@La@`A_DJ[pAgCJSlAwBJSf@{@b@w@dAqBHQZq@LMLKRIFAL?J@HBFBp@XPHh@TTJNFTRNFd@N\\HF@J@J@@V?N@rA@dB";
+
+    final list = await routeEncoded.toListGeo();
+    final encodedRoute = await list.encodedToString();
+    expect(list.isNotEmpty, true);
+    expect(encodedRoute, routeEncoded);
+  });
 }