无法通过地理定位器在 Flutter 中检索位置答案

【问题标题】：Can't retrieve location in Flutter by geolocator无法通过地理定位器在 Flutter 中检索位置
【发布时间】：2021-08-24 10:45:33
【问题描述】：

我正在开发一个颤振应用程序，并且我创建了一个使用地理定位器包检索当前位置的类，并通过 iOS 模拟器进行调试，它不检索任何数据。定位服务的图标只显示为空心图标，没有收到任何数据。

位置类：

import 'package:geolocator/geolocator.dart';

class LocationServices {
  double latitude;
  double longitude;

  Future<void> getCurrentLocation() async {
    try {
      Position position = await Geolocator()
          .getCurrentPosition(desiredAccuracy: LocationAccuracy.best);

      latitude = position.latitude;
      longitude = position.longitude;
      print(latitude);
      print(longitude);
    } catch (e) {
      print(e);
    }
  }
}

函数调用的初始化状态：

@override
  void initState() {
    // TODO: implement initState
    super.initState();
    _animationController = AnimationController(
      vsync: this,
      duration: Duration(seconds: 4),
    );
    _opacity = Tween<double>(begin: 0.0, end: 1).animate(_animationController);
    _animationController.forward();
    NetworkManager.checkConnectivity();
    // apiServices.getPrayerTimes();
    locationServices.getCurrentLocation();
  }

Info.plist 文件

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>CFBundleDevelopmentRegion</key>
    <string>$(DEVELOPMENT_LANGUAGE)</string>
    <key>CFBundleExecutable</key>
    <string>$(EXECUTABLE_NAME)</string>
    <key>CFBundleIdentifier</key>
    <string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
    <key>CFBundleInfoDictionaryVersion</key>
    <string>6.0</string>
    <key>CFBundleName</key>
    <string>muslim_2b</string>
    <key>CFBundlePackageType</key>
    <string>APPL</string>
    <key>CFBundleShortVersionString</key>
    <string>$(FLUTTER_BUILD_NAME)</string>
    <key>CFBundleSignature</key>
    <string>????</string>
    <key>CFBundleVersion</key>
    <string>$(FLUTTER_BUILD_NUMBER)</string>
    <key>LSRequiresIPhoneOS</key>
    <true/>
    <key>UILaunchStoryboardName</key>
    <string>LaunchScreen</string>
    <key>UIMainStoryboardFile</key>
    <string>Main</string>
    <key>UISupportedInterfaceOrientations</key>
    <array>
        <string>UIInterfaceOrientationPortrait</string>
        <string>UIInterfaceOrientationLandscapeLeft</string>
        <string>UIInterfaceOrientationLandscapeRight</string>
    </array>
    <key>UISupportedInterfaceOrientations~ipad</key>
    <array>
        <string>UIInterfaceOrientationPortrait</string>
        <string>UIInterfaceOrientationPortraitUpsideDown</string>
        <string>UIInterfaceOrientationLandscapeLeft</string>
        <string>UIInterfaceOrientationLandscapeRight</string>
    </array>
    <key>UIViewControllerBasedStatusBarAppearance</key>
    <false/>
    <key>NSLocationWhenInUseUsageDescription</key>
    <string>This app needs access to location when open.</string>
    <key>NSLocationAlwaysUsageDescription</key>
    <string>This app needs access to location when in the background.</string>
    <key>NSLocationAlwaysAndWhenInUseUsageDescription</key>
    <string>This app needs access to location when open and in the background.</string>
</dict>
</plist>

The Location icon is hollow

【问题讨论】：

catch 方法返回的任何错误？

标签： android ios flutter location

【解决方案1】：

我相信可以通过更改 iOS 模拟器上的位置设置来解决此问题。为此：

检查iOS模拟器的App菜单栏。点击“功能”，然后点击“位置”。
将位置从“无”更改为自定义位置、Apple 或您希望的任何其他位置。
再次运行您的应用程序。

【讨论】：