feats

android/app/build.gradle

 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
-    compileSdkVersion flutter.compileSdkVersion
+    compileSdkVersion 31
 
     compileOptions {
         sourceCompatibility JavaVersion.VERSION_1_8
     defaultConfig {
         // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
         applicationId "com.njyunzhi.farmer_client"
-        minSdkVersion flutter.minSdkVersion
-        targetSdkVersion flutter.targetSdkVersion
+        minSdkVersion 21
+        targetSdkVersion 28
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName
     }

android/app/src/main/AndroidManifest.xml

            android:value="b481b4187e24e625fa0056fd0530e663"/>
        <service android:name="com.amap.api.location.APSService"
            tools:ignore="MissingClass" />
+<!--       <meta-data-->
+<!--           android:name="com.baidu.lbsapi.API_KEY"-->
+<!--           android:value="p8WUiN5XtPrBYagGfld4VZFCnM4lo3Dq" />-->
     </application>
 </manifest>

lib/main.dart

 import 'package:farmer_client/theme.dart';
+import 'package:farmer_client/utils/location.dart';
 import 'package:flutter/material.dart';
 import 'package:get/get.dart';
 import 'package:get_storage/get_storage.dart';
 void main() async {
   await GetStorage.init();
 
+  // // 高德地图隐私生命
+  // showPrivacy();
+
   runApp(const MyApp());
 }
 

lib/models/app.dart

 
 import 'package:amap_flutter_location/amap_flutter_location.dart';
 import 'package:farmer_client/models/entities/person.dart';
+import 'package:farmer_client/utils/timer.dart';
 import 'package:farmer_client/widgets/Modal.dart';
+import 'package:flutter/material.dart';
 import 'package:get/get.dart';
+import '../utils/amap/const_config.dart';
 import '../utils/location.dart';
 
 class AppController extends GetxController {
   final testInt = 1.obs;
 
   AMapFlutterLocation? _location;
-  StreamSubscription<Map<String, Object>>? _locationListener;
 
   get locationStr {
     if (null == location.value) return null;
     return longitude.toString() + "," + latitude.toString();
   }
 
+  void onLocationChange (Map<String, Object> result) {
+    location(result);
+  }
+
   @override
   void onInit() {
     super.onInit();
 
-    // 尝试获取 location
-    requireLocation().then((loc) async {
-      _location = loc;
+    setTimeout(() {
+
+      // 尝试获取 location
+      requireLocation(onLocationChange).then((loc) {
+        _location = loc;
+      }).catchError((e) {
+        print(e);
 
-      // 监听位置变化
-      _locationListener = loc.onLocationChanged().listen((Map<String, Object> result) {
-        location(result);
+        showAlert(
+          title: '获取定位失败',
+          message: e.message,
+          onConfirm: () => exit(1),
+        );
       });
-      loc.startLocation();
-    }).catchError((e) {
-      print(e);
-
-      showAlert(
-        title: '获取定位失败',
-        message: e.message,
-        onConfirm: () => exit(1),
-      );
+    }, 2000);
+    WidgetsBinding.instance?.addPostFrameCallback((timeStamp) {
+      AMapFlutterLocation.setApiKey(ConstConfig.amapApiKeys.androidKey!, ConstConfig.amapApiKeys.iosKey!);
+      // showPrivacy();
+      AMapFlutterLocation.updatePrivacyShow(true, true);
+      AMapFlutterLocation.updatePrivacyAgree(true);
     });
 
     // // 尝试获取一次人员信息
 
   @override
   void onClose() {
-    if (null != _locationListener) {
-      _locationListener?.cancel();
-    }
-
     if (null != _location) {
       _location?.destroy();
     }

lib/utils/location.dart

 
 import 'amap/const_config.dart';
 
-Future requireLocation() async {
-  AMapLocationOption locationOption = AMapLocationOption();
-  final AMapFlutterLocation location = AMapFlutterLocation();
-  location.setLocationOption(locationOption);
+typedef AMAPListener = void Function (Map<String, Object>);
 
+void showPrivacy() {
   /// 设置是否已经包含高德隐私政策并弹窗展示显示用户查看，如果未包含或者没有弹窗展示，高德定位SDK将不会工作
   ///
   /// 高德SDK合规使用方案请参考官网地址：https://lbs.amap.com/news/sdkhgsy
   ///
   /// [hasAgree] 隐私权政策是否已经取得用户同意
   AMapFlutterLocation.updatePrivacyAgree(true);
+}
 
-  // 判断定位权限
+// 判断定位权限
+Future _requirePermission() async {
   PermissionStatus _permissionGranted = await Permission.location.status;
   if (_permissionGranted == PermissionStatus.denied) {
     // 如果未允许, 尝试申请一次
       throw Exception("请设置允许当前程序定位功能");
     }
   }
+}
 
-  AMapFlutterLocation.setApiKey(ConstConfig.amapApiKeys.androidKey!, ConstConfig.amapApiKeys.iosKey!);
+Future requireLocation(AMAPListener listener) async {
+
+  await _requirePermission();
+  final AMapFlutterLocation location = AMapFlutterLocation();
+  location.onLocationChanged().listen(listener);
+  location.setLocationOption(_getAMapLocationOption());
+  location.startLocation();
 
   return location;
 }
+
+_getAMapLocationOption() {
+  AMapLocationOption locationOption = new AMapLocationOption();
+
+  ///是否单次定位
+  locationOption.onceLocation = false;
+
+  ///是否需要返回逆地理信息
+  locationOption.needAddress = true;
+
+  ///逆地理信息的语言类型
+  locationOption.geoLanguage = GeoLanguage.DEFAULT;
+
+  locationOption.desiredLocationAccuracyAuthorizationMode =
+      AMapLocationAccuracyAuthorizationMode.ReduceAccuracy;
+
+  locationOption.fullAccuracyPurposeKey = "AMapLocationScene";
+
+  ///设置Android端连续定位的定位间隔
+  locationOption.locationInterval = 2000;
+
+  ///设置Android端的定位模式<br>
+  ///可选值：<br>
+  ///<li>[AMapLocationMode.Battery_Saving]</li>
+  ///<li>[AMapLocationMode.Device_Sensors]</li>
+  ///<li>[AMapLocationMode.Hight_Accuracy]</li>
+  locationOption.locationMode = AMapLocationMode.Hight_Accuracy;
+
+  ///设置iOS端的定位最小更新距离<br>
+  locationOption.distanceFilter = -1;
+
+  ///设置iOS端期望的定位精度
+  /// 可选值：<br>
+  /// <li>[DesiredAccuracy.Best] 最高精度</li>
+  /// <li>[DesiredAccuracy.BestForNavigation] 适用于导航场景的高精度 </li>
+  /// <li>[DesiredAccuracy.NearestTenMeters] 10米 </li>
+  /// <li>[DesiredAccuracy.Kilometer] 1000米</li>
+  /// <li>[DesiredAccuracy.ThreeKilometers] 3000米</li>
+  locationOption.desiredAccuracy = DesiredAccuracy.Best;
+
+  ///设置iOS端是否允许系统暂停定位
+  locationOption.pausesLocationUpdatesAutomatically = false;
+
+  return locationOption;
+}
+
+
+// import 'dart:io';
+//
+// import 'package:flutter_baidu_mapapi_base/flutter_baidu_mapapi_base.dart'
+//     show BMFMapSDK, BMF_COORD_TYPE;
+// import 'package:flutter_bmflocation/flutter_bmflocation.dart';
+// import 'package:permission_handler/permission_handler.dart';
+//
+// Future requireLocation() async {
+//   // 判断定位权限
+//   PermissionStatus _permissionGranted = await Permission.location.status;
+//   if (_permissionGranted == PermissionStatus.denied) {
+//     // 如果未允许, 尝试申请一次
+//     _permissionGranted = await Permission.location.request();
+//     if (_permissionGranted != PermissionStatus.granted) {
+//       throw Exception("请设置允许当前程序定位功能");
+//     }
+//   }
+//
+//   final LocationFlutterPlugin location = LocationFlutterPlugin();
+//
+//   // 设置是否隐私政策
+//   location.setAgreePrivacy(true);
+//   BMFMapSDK.setAgreePrivacy(true);
+//   if (Platform.isAndroid) {
+//     // Android 目前不支持接口设置Apikey,
+//     // 请在主工程的Manifest文件里设置，详细配置方法请参考官网(https://lbsyun.baidu.com/)demo
+//     BMFMapSDK.setCoordType(BMF_COORD_TYPE.COMMON);
+//   }
+//
+//   return location;
+// }

pubspec.yaml

   amap_flutter_location: ^3.0.0
   carousel_slider: ^4.0.0
   permission_handler: ^9.2.0
+#  flutter_bmflocation: ^3.1.0+1