Adding Background/Foreground Services to GeoLocator UPDATE

client/android/app/build.gradle

@@ -27,6 +27,12 @@ android {
     compileSdkVersion flutter.compileSdkVersion
     ndkVersion "25.1.8937393"
 
+    packagingOptions {
+        jniLibs {
+            useLegacyPackaging true
+        }
+    }
+
     compileOptions {
         sourceCompatibility JavaVersion.VERSION_1_8
         targetCompatibility JavaVersion.VERSION_1_8
@@ -42,11 +48,10 @@ android {
 
     defaultConfig {
         applicationId "com.appveyor.flet"
-        minSdkVersion flutter.minSdkVersion
+        minSdkVersion 23
         targetSdkVersion flutter.targetSdkVersion
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName
-        minSdkVersion 23
     }
 
     buildTypes {
@@ -60,4 +65,4 @@ flutter {
     source '../..'
 }
 
-dependencies {}
+dependencies {}

client/android/app/src/main/AndroidManifest.xml

@@ -1,38 +1,58 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.appveyor.flet">
-  <uses-permission android:name="android.permission.INTERNET" />
-  <!-- Media access permissions.
-      Android 13 or higher.
-      https://developer.android.com/about/versions/13/behavior-changes-13#granular-media-permissions -->
-  <uses-permission android:name="android.permission.READ_MEDIA_AUDIO" />
-  <uses-permission android:name="android.permission.READ_MEDIA_VIDEO" />
-  <!-- Storage access permissions. Android 12 or lower. -->
-  <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
-  <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
-  <uses-permission android:name="android.permission.RECORD_AUDIO" />
-  <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
-  <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
-  <application android:label="Flet" android:name="${applicationName}"
-    android:icon="@mipmap/ic_launcher">
-    <meta-data
-            android:name="io.flutter.embedding.android.EnableImpeller"
-            android:value="true"/>
-    <activity android:name=".MainActivity" android:exported="true" android:launchMode="singleTop"
-      android:theme="@style/LaunchTheme"
-      android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
-      android:hardwareAccelerated="true" android:windowSoftInputMode="adjustResize">
-      <!-- Specifies an Android theme to apply to this Activity as soon as
+    <uses-permission android:name="android.permission.INTERNET" />
+    <!-- Media access permissions.
+    Android 13 or higher.
+    https://developer.android.com/about/versions/13/behavior-changes-13#granular-media-permissions -->
+    <uses-permission android:name="android.permission.READ_MEDIA_AUDIO" />
+    <uses-permission android:name="android.permission.READ_MEDIA_VIDEO" />
+    <!-- Storage access permissions. Android 12 or lower. -->
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.RECORD_AUDIO" />
+    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
+    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE_LOCATION" />
+    <uses-permission android:name="android.permission.WAKE_LOCK" />
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
+    <!-- Google TV -->
+    <uses-feature android:name="android.software.leanback" android:required="false" />
+    <uses-feature android:name="android.hardware.touchscreen" android:required="false" />
+
+    <application
+        android:label="Flet"
+        android:name="${applicationName}"
+        android:enableOnBackInvokedCallback="true"
+        android:icon="@mipmap/ic_launcher">
+        <meta-data
+                android:name="io.flutter.embedding.android.EnableImpeller"
+                android:value="false"/>
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:launchMode="singleTop"
+            android:theme="@style/LaunchTheme"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+            android:hardwareAccelerated="true"
+            android:windowSoftInputMode="adjustResize">
+            <!-- Specifies an Android theme to apply to this Activity as soon as
                  the Android process has started. This theme is visible to the user
                  while the Flutter UI initializes. After that, this theme continues
                  to determine the Window background behind the Flutter UI. -->
-      <meta-data android:name="io.flutter.embedding.android.NormalTheme"
-        android:resource="@style/NormalTheme" />
-      <intent-filter>
-        <action android:name="android.intent.action.MAIN" />
-        <category android:name="android.intent.category.LAUNCHER" />
-      </intent-filter>
-    </activity>
-    <!-- Don't delete the meta-data below.
+            <meta-data
+                android:name="io.flutter.embedding.android.NormalTheme"
+                android:resource="@style/NormalTheme"
+            />
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+                <category android:name="android.intent.category.LEANBACK_LAUNCHER"/>   <!-- Google TV -->
+            </intent-filter>
+        </activity>
+        <!-- Don't delete the meta-data below.
              This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
-    <meta-data android:name="flutterEmbedding" android:value="2" />
-  </application>
+        <meta-data
+            android:name="flutterEmbedding"
+            android:value="2" />
+    </application>
 </manifest>

client/android/build.gradle

@@ -1,5 +1,5 @@
 buildscript {
-    ext.kotlin_version = '1.7.10'
+    ext.kotlin_version = '1.9.24'
     repositories {
         google()
         mavenCentral()
@@ -27,4 +27,4 @@ subprojects {
 
 tasks.register("clean", Delete) {
     delete rootProject.buildDir
-}
+}

client/android/gradle/wrapper/gradle-wrapper.properties

@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.5-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.7-bin.zip

client/android/settings.gradle

@@ -23,7 +23,7 @@ pluginManagement {
 
 plugins {
     id "dev.flutter.flutter-plugin-loader" version "1.0.0"
-    id "com.android.application" version "7.3.0" apply false
+    id "com.android.application" version "8.3.1" apply false
 }
 
-include ":app"
+include ":app"

packages/flet_geolocator/lib/src/geolocator.dart

@@ -1,3 +1,5 @@
+import 'dart:async';
+import 'dart:convert';
 import 'package:flet/flet.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/widgets.dart';
@@ -22,6 +24,8 @@ class GeolocatorControl extends StatefulWidget {
 
 class _GeolocatorControlState extends State<GeolocatorControl>
     with FletStoreMixin {
+  StreamSubscription<Position>? _positionStream;
+
   @override
   void initState() {
     super.initState();
@@ -41,10 +45,81 @@ class _GeolocatorControlState extends State<GeolocatorControl>
     super.deactivate();
   }
 
+  void _onPosition(Position position) {
+    debugPrint("Geolocator onPosition: $position");
+    final jsonData = jsonEncode({
+      "latitude": position.latitude,
+      "longitude": position.longitude,
+    });
+    widget.backend.triggerControlEvent(widget.control.id, "position", jsonData);
+  }
+
+  Future<bool> _enableLocationService() async {
+    late LocationSettings locationSettings;
+    if (defaultTargetPlatform == TargetPlatform.android) {
+      locationSettings = AndroidSettings(
+          accuracy: LocationAccuracy.high,
+          distanceFilter: 0,
+          forceLocationManager: true,
+          intervalDuration: const Duration(seconds: 30),
+          // Needs this or when app goes in background, background service stops working
+          foregroundNotificationConfig: const ForegroundNotificationConfig(
+            notificationText:
+            "Location Updates",
+            notificationTitle: "Running in Background",
+            enableWakeLock: true,
+          )
+      );
+    } else if (defaultTargetPlatform == TargetPlatform.iOS || defaultTargetPlatform == TargetPlatform.macOS) {
+      locationSettings = AppleSettings(
+        accuracy: LocationAccuracy.bestForNavigation,
+        activityType: ActivityType.automotiveNavigation,
+        distanceFilter: 0,
+        pauseLocationUpdatesAutomatically: false,
+        showBackgroundLocationIndicator: true,
+        allowBackgroundLocationUpdates: true,
+      );
+    } else if (kIsWeb) {
+      locationSettings = WebSettings(
+        accuracy: LocationAccuracy.high,
+        distanceFilter: 0,
+        // maximumAge: Duration(minutes: 5)
+        maximumAge: Duration.zero,
+      );
+    } else {
+      locationSettings = LocationSettings(
+        accuracy: LocationAccuracy.high,
+        distanceFilter: 0,
+      );
+    }
+
+    _positionStream = Geolocator.getPositionStream(locationSettings: locationSettings,
+    ).listen(
+      (Position? position) {
+        if (position != null) {
+          _onPosition(position);
+          debugPrint('Geolocator: ${position.latitude}, ${position.longitude}, ${position}');
+        } else {
+          debugPrint('Geolocator: Position is null.');
+        }
+      },
+      onError: (e) {
+        debugPrint('Geolocator: Error getting stream position: $e');
+      },
+    );
+    return true;
+  }
+
+  Future<bool> _disableLocationService() async {
+    await _positionStream?.cancel();
+    return true;
+  }
+
   @override
   Widget build(BuildContext context) {
     debugPrint(
         "Geolocator build: ${widget.control.id} (${widget.control.hashCode})");
+    bool onPosition = widget.control.attrBool("onPosition", false)!;
 
     () async {
       widget.backend.subscribeMethods(widget.control.id,
@@ -59,6 +134,15 @@ class _GeolocatorControlState extends State<GeolocatorControl>
           case "is_location_service_enabled":
             var serviceEnabled = await Geolocator.isLocationServiceEnabled();
             return serviceEnabled.toString();
+          case "service_enable":
+            var serviceEnabled = false;
+            if (onPosition) {
+              serviceEnabled = await _enableLocationService();
+            }
+            return serviceEnabled.toString();
+          case "service_disable":
+            var serviceDisabled = await _disableLocationService();
+            return serviceDisabled.toString();
           case "open_app_settings":
             if (!kIsWeb) {
               var opened = await Geolocator.openAppSettings();

packages/flet_geolocator/pubspec.yaml

@@ -12,12 +12,12 @@ dependencies:
   flutter:
     sdk: flutter
 
-  geolocator: ^11.0.0
+  geolocator: ^13.0.1
 
   flet:
     path: ../flet/
 
 dev_dependencies:
   flutter_test:
     sdk: flutter
-  flutter_lints: ^2.0.0
+  flutter_lints: ^2.0.0

packages/flet_permission_handler/pubspec.yaml

@@ -14,11 +14,12 @@ dependencies:
 
   collection: ^1.16.0
   permission_handler: ^11.3.1
+  permission_handler_html: ^0.1.3+2
 
   flet:
     path: ../flet/
 
 dev_dependencies:
   flutter_test:
     sdk: flutter
-  flutter_lints: ^2.0.0
+  flutter_lints: ^2.0.0