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Co-authored-by: Julian Bissekkou <julian.bissekkou@tapped.dev>
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31 changes: 31 additions & 0 deletions
31
android/src/main/java/com/mapbox/mapboxgl/setMapLanguage.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,31 @@ | ||
| @file:JvmName("MapboxMapUtils") | ||
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| package com.mapbox.mapboxgl | ||
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| import com.mapbox.mapboxsdk.maps.MapboxMap | ||
| import com.mapbox.mapboxsdk.style.expressions.Expression | ||
| import com.mapbox.mapboxsdk.style.layers.PropertyFactory | ||
| import com.mapbox.mapboxsdk.style.layers.SymbolLayer | ||
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| fun MapboxMap.setMapLanguage(language: String) { | ||
| val layers = this.style?.layers ?: emptyList() | ||
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| val languageRegex = Regex("(name:[a-z]+)") | ||
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| val symbolLayers = layers.filterIsInstance<SymbolLayer>() | ||
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| for (layer in symbolLayers) { | ||
| // continue when there is no current expression | ||
| val expression = layer.textField.expression ?: continue | ||
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| // We could skip the current iteration, whenever there is not current language. | ||
| if (!expression.toString().contains(languageRegex)) { | ||
| continue | ||
| } | ||
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| val properties = | ||
| "[\"coalesce\", [\"get\",\"name:$language\"],[\"get\",\"name:latin\"],[\"get\",\"name\"]]" | ||
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| layer.setProperties(PropertyFactory.textField(Expression.raw(properties))) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| import 'dart:async'; | ||
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| import 'package:flutter/material.dart'; | ||
| import 'package:maplibre_gl/mapbox_gl.dart'; | ||
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| import 'page.dart'; | ||
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| class LocalizedMapPage extends ExamplePage { | ||
| const LocalizedMapPage({super.key}) | ||
| : super(const Icon(Icons.map), 'Localized screen map'); | ||
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| @override | ||
| Widget build(BuildContext context) { | ||
| return const LocalizedMap(); | ||
| } | ||
| } | ||
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| class LocalizedMap extends StatefulWidget { | ||
| const LocalizedMap({super.key}); | ||
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| @override | ||
| State createState() => LocalizedMapState(); | ||
| } | ||
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| class LocalizedMapState extends State<LocalizedMap> { | ||
| final _mapReadyCompleter = Completer<MaplibreMapController>(); | ||
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| var _mapLanguage = "en"; | ||
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| @override | ||
| Widget build(BuildContext context) { | ||
| return Scaffold( | ||
| body: Column( | ||
| children: [ | ||
| DropdownButton<String>( | ||
| value: _mapLanguage, | ||
| icon: const Icon(Icons.arrow_drop_down), | ||
| elevation: 16, | ||
| onChanged: (value) { | ||
| if (value == null) return; | ||
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| setState(() => _mapLanguage = value); | ||
| _setMapLanguage(); | ||
| }, | ||
| items: ["en", "de", "es", "pl"] | ||
| .map<DropdownMenuItem<String>>((String value) { | ||
| return DropdownMenuItem<String>( | ||
| value: value, | ||
| child: Text(value), | ||
| ); | ||
| }).toList(), | ||
| ), | ||
| Expanded( | ||
| child: MaplibreMap( | ||
| onMapCreated: _onMapCreated, | ||
| initialCameraPosition: | ||
| const CameraPosition(target: LatLng(0.0, 0.0)), | ||
| onStyleLoadedCallback: _onStyleLoadedCallback, | ||
| ), | ||
| ), | ||
| ], | ||
| ), | ||
| ); | ||
| } | ||
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| void _onMapCreated(MaplibreMapController controller) { | ||
| _mapReadyCompleter.complete(controller); | ||
| } | ||
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| void _onStyleLoadedCallback() { | ||
| _setMapLanguage(); | ||
| } | ||
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| Future<void> _setMapLanguage() async { | ||
| final controller = await _mapReadyCompleter.future; | ||
| controller.setMapLanguage(_mapLanguage); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,5 +1,4 @@ | ||
| import Mapbox | ||
| import MapLibreAnnotationExtension | ||
|
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| /* | ||
| * The mapping is based on the values defined here: | ||
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||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| // | ||
| // MLNMapView+setLanguage.swift | ||
| // maplibre_gl | ||
| // | ||
| // Created by Julian Bissekkou on 09.08.23. | ||
| // | ||
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| import Foundation | ||
| import Mapbox | ||
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| extension MGLMapView { | ||
| func setMapLanguage(_ language: String) { | ||
| guard let style = style else { return } | ||
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| let layers = style.layers | ||
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| for layer in layers { | ||
| if let symbolLayer = layer as? MGLSymbolStyleLayer { | ||
| if symbolLayer.text == nil { | ||
| continue | ||
| } | ||
|
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| // We could skip the current iteration, whenever there is not current language. | ||
| if !symbolLayer.text.description.containsLanguage() { | ||
| continue | ||
| } | ||
|
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| let properties = ["text-field": "[\"coalesce\",[\"get\",\"name:\(language)\"],[\"get\",\"name:latin\"],[\"get\",\"name\"]]"] | ||
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| LayerPropertyConverter.addSymbolProperties( | ||
| symbolLayer: symbolLayer, | ||
| properties: properties | ||
| ) | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| private extension String { | ||
| func containsLanguage() -> Bool { | ||
| do { | ||
| let regex = try NSRegularExpression(pattern: "(name:[a-z]+)") | ||
| let range = NSRange(location: 0, length: self.utf16.count) | ||
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| if let _ = regex.firstMatch(in: self, options: [], range: range) { | ||
| return true | ||
| } else { | ||
| return false | ||
| } | ||
| } catch { | ||
| return false | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
|
|
@@ -9,5 +9,5 @@ dependencies: | |
| meta: ^1.0.5 | ||
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| environment: | ||
| sdk: '>=2.12.0 <3.0.0' | ||
| sdk: '>=2.14.0 <3.0.0' | ||
| flutter: '>=2.10.0' | ||
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