增加定位开关和定位权限的检查,并跳转设置页.

android/settings.gradle

@@ -20,7 +20,7 @@ pluginManagement {
 plugins {
     id "dev.flutter.flutter-plugin-loader" version "1.0.0"
     id "com.android.application" version "7.3.0" apply false
-    id "org.jetbrains.kotlin.android" version "1.7.10" apply false
+    id "org.jetbrains.kotlin.android" version "1.8.0" apply false
 }
 
 include ":app"

lib/page/print/print_page.dart

@@ -1,13 +1,9 @@
 import 'dart:async';
-import 'dart:convert';
 
 import 'package:amap_flutter_location/amap_location_option.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:lszlgl/base/base_lifecycle_state.dart';
-import 'package:lszlgl/page/print/connect_print_page.dart';
-import 'package:signature/signature.dart';
-import 'package:lszlgl/widget/button.dart';
 
 import '../../drfit/database.dart';
 import '../../drfit/model_factory.dart';
@@ -88,7 +84,7 @@ class _PrintPageState extends BaseLifecycleState<PrintPage> {
     }
 
     final codec = await ui.instantiateImageCodec(
-      widget.args.bytes!,
+      widget.args.bytes,
       targetHeight: 590,  // 640
       targetWidth: targetWidth, // 560
     );
@@ -173,9 +169,8 @@ class _PrintPageState extends BaseLifecycleState<PrintPage> {
   }
 
   void getLocation() async {
-    bool granted = await LocationUtils.requestLocationPermission();
+    bool granted = await LocationUtils.checkLocationAvailable();
     if (!granted) {
-      MyNavigator.showToast('请打开APP的定位权限');
       return;
     }
     LocationUtils.setLocationOption(AMapLocationOption(onceLocation: true));

lib/page/sample_task/reap_sample_detail/reap_sample_basic_detail_page.dart

@@ -17,7 +17,6 @@ import '../../../config/colors.dart';
 import '../../../model/rsp/dict_rsp.dart';
 import '../../../model/rsp/sample_task_rsp.dart';
 import '../../../network/my_api.dart';
-import '../../../service/dict_service.dart';
 import '../../../service/user_service.dart';
 import '../../../utils/file_utils.dart';
 import '../../../widget/card_item.dart';
@@ -158,9 +157,8 @@ class _ReapSampleBasicDetailPageState extends BaseLifecycleState<ReapSampleBasic
   }
 
   void getLocation() async {
-    bool granted = await LocationUtils.requestLocationPermission();
+    bool granted = await LocationUtils.checkLocationAvailable();
     if (!granted) {
-      MyNavigator.showToast('请打开APP的定位权限');
       return;
     }
     LocationUtils.setLocationOption(AMapLocationOption(onceLocation: true));

lib/utils/location_utils.dart

@@ -1,7 +1,12 @@
 import 'package:amap_flutter_location/amap_flutter_location.dart';
 import 'package:amap_flutter_location/amap_location_option.dart';
+import 'package:app_settings/app_settings.dart';
+import 'package:flutter/material.dart';
 import 'package:permission_handler/permission_handler.dart';
 
+import '../router/my_navigator.dart';
+import '../widget/button.dart';
+
 class LocationUtils {
   LocationUtils._();
 
@@ -110,22 +115,58 @@ class LocationUtils {
     return location.onLocationChanged();
   }
 
-  /// 申请定位权限
-  /// 授予定位权限返回true， 否则返回false
-  static Future<bool> requestLocationPermission() async {
-    //获取当前的权限
+  /// 检查定位是否可用
+  /// 1.app定位权限
+  /// 2.系统定位开关
+  static Future<bool> checkLocationAvailable() async {
+    // 检查定位权限
     var status = await Permission.location.status;
-    if (status == PermissionStatus.granted) {
-      //已经授权
-      return true;
-    } else {
-      //未授权则发起一次申请
+    if (status != PermissionStatus.granted) {
+      //未授权 申请定位权限
       status = await Permission.location.request();
-      if (status == PermissionStatus.granted) {
-        return true;
-      } else {
+      if (status != PermissionStatus.granted) {
+        // 未授权 提示用户去设置
+        MyNavigator.showToast('请打开APP的定位权限');
+        showSettingDialog(
+          title: '定位权限',
+          content: '为了APP能使用位置功能，您在系统设置中授权APP的定位权限。',
+          onTap: openAppSettings,
+        );
         return false;
       }
     }
+    // 检查系统定位开关
+    bool locationEnable = await Permission.location.serviceStatus.isEnabled;
+    if (!locationEnable) {
+      showSettingDialog(
+        title: '定位功能',
+        content: '为了APP能使用位置功能，您在系统设置中打开定位开关。',
+        onTap: () => AppSettings.openAppSettings(type: AppSettingsType.location),
+      );
+      return false;
+    }
+    return true;
+  }
+
+  static void showSettingDialog({String? title, String? content, VoidCallback? onTap}) {
+    MyNavigator.showDialog(
+      tag: 'setting',
+      builder: (_) => AlertDialog(
+        title: title != null ? Text(title) : null,
+        content: content != null ? Text(content) : null,
+        actions: [
+          MyButton(
+            '去设置',
+            alignment: null,
+            backgroundColor: const Color(0xFFCE615A),
+            onTap: () {
+              onTap?.call();
+              MyNavigator.dismiss(tag: 'setting');
+            },
+          ),
+          MyButton('取消', alignment: null, onTap: () => MyNavigator.dismiss(tag: 'setting')),
+        ],
+      ),
+    );
   }
 }

pubspec.yaml

@@ -93,6 +93,8 @@ dependencies:
   drift: ^2.18.0
   #
   sqlite3_flutter_libs: ^0.5.0
+  # 打开系统设置
+  app_settings: ^5.1.1
 
 dev_dependencies:
   flutter_test: