Flutter环境感知与探索插件flutter_look_around的使用

Flutter环境感知与探索插件flutter_look_around的使用

安装

在你的Flutter项目的pubspec.yaml文件中添加以下依赖：

dependencies:
  flutter_look_around: <latest_version>

在你的库中添加以下导入语句：

import 'package:flutter_look_around/flutter_look_around.dart';

开始使用

Look Around功能从iOS 16及以上版本开始可用。

控制Look Around小部件

将FlutterLookAround小部件添加到你的widget树中。你可以通过LookAroundController来控制Look Around，该控制器在onLookAroundCreated回调中接收。

示例用法

以下是一个完整的示例代码，展示了如何使用flutter_look_around插件：

class _LookAroundExampleState extends State<LookAroundExample> {
  final bool _isNavigationEnabled = true;
  final bool _showsRoadLabels = true;
  final BadgePosition _badgePosition = BadgePosition.topLeading;
  final POIPointOfInterestFilter _poiPointOfInterestFilter =
      POIPointOfInterestFilter.includingAll;

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('LookAround Example'),
      ),
      body: Container(
        padding: const EdgeInsets.all(40),
        child: ClipRRect(
          borderRadius: BorderRadius.circular(20),
          child: SizedBox(
            width: 400,
            height: 200,
            child: FlutterLookAround(
              initPosition: const LatLng(
                35.687216,
                139.741844,
              ),
              onLookAroundCreated: (LookAroundController controller) {
                lkController = controller;
              },
              isNavigationEnabled: _isNavigationEnabled,
              showsRoadLabels: _showsRoadLabels,
              badgePosition: _badgePosition,
              poiPointOfInterestFilter: _poiPointOfInterestFilter,
              errorWidget: const Center(
                child: Text('LookAround not available'),
              ),
            ),
          ),
        ),
      ),
    );
  }
}

运行示例

运行上述示例代码，你将会看到一个带有地图的小部件，并且可以通过LookAroundController进行交互。以下是完整的示例代码，包括主应用文件：

import 'package:flutter/material.dart';
import 'package:flutter_look_around/flutter_look_around.dart';

void main() => runApp(const MyApp());

LookAroundController? lkController;

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  [@override](/user/override)
  Widget build(BuildContext context) {
    return const MaterialApp(
      home: LookAroundExample(),
    );
  }
}

class LookAroundExample extends StatefulWidget {
  const LookAroundExample({super.key});

  [@override](/user/override)
  State<LookAroundExample> createState() => _LookAroundExampleState();
}

class _LookAroundExampleState extends State<LookAroundExample> {
  final bool _isNavigationEnabled = true;
  final bool _showsRoadLabels = true;
  final BadgePosition _badgePosition = BadgePosition.topLeading;
  final POIPointOfInterestFilter _poiPointOfInterestFilter =
      POIPointOfInterestFilter.includingAll;

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('LookAround Example'),
      ),
      body: Container(
        padding: const EdgeInsets.all(40),
        child: ClipRRect(
          borderRadius: BorderRadius.circular(20),
          child: SizedBox(
            width: 400,
            height: 200,
            child: FlutterLookAround(
              initPosition: const LatLng(
                35.687216,
                139.741844,
              ),
              onLookAroundCreated: (LookAroundController controller) {
                lkController = controller;
              },
              isNavigationEnabled: _isNavigationEnabled,
              showsRoadLabels: _showsRoadLabels,
              badgePosition: _badgePosition,
              poiPointOfInterestFilter: _poiPointOfInterestFilter,
              errorWidget: const Center(
                child: Text('LookAround not available'),
              ),
            ),
          ),
        ),
      ),
    );
  }
}

更多关于Flutter环境感知与探索插件flutter_look_around的使用的实战教程也可以访问 https://www.itying.com/category-92-b0.html

1 回复

更多关于Flutter环境感知与探索插件flutter_look_around的使用的实战系列教程也可以访问 https://www.itying.com/category-92-b0.html


flutter_look_around 是一个用于 Flutter 的环境感知与探索插件，它可以帮助开发者通过设备的摄像头实现增强现实（AR）或环境感知功能。这个插件通常用于需要与环境进行交互的应用，例如室内导航、物体识别、场景重建等。

安装 flutter_look_around

要使用 flutter_look_around，首先需要将其添加到你的 Flutter 项目中。你可以通过以下步骤来安装它：

  1. 打开 pubspec.yaml 文件。

  2. 在 dependencies 部分添加 flutter_look_around：

    dependencies:
  flutter:
    sdk: flutter
  flutter_look_around: ^latest_version

    请将 latest_version 替换为最新的版本号。

  3. 运行 flutter pub get 来安装依赖。

基本用法

flutter_look_around 插件通常用于启动摄像头并开始环境感知。以下是一个简单的示例，展示如何使用这个插件：

import 'package:flutter/material.dart';
import 'package:flutter_look_around/flutter_look_around.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      home: LookAroundScreen(),
    );
  }
}

class LookAroundScreen extends StatefulWidget {
  [@override](/user/override)
  _LookAroundScreenState createState() => _LookAroundScreenState();
}

class _LookAroundScreenState extends State<LookAroundScreen> {
  late LookAroundController _controller;

  [@override](/user/override)
  void initState() {
    super.initState();
    _controller = LookAroundController();
  }

  [@override](/user/override)
  void dispose() {
    _controller.dispose();
    super.dispose();
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Look Around Demo'),
      ),
      body: Column(
        children: [
          Expanded(
            child: LookAroundView(
              controller: _controller,
            ),
          ),
          Padding(
            padding: const EdgeInsets.all(8.0),
            child: ElevatedButton(
              onPressed: () async {
                await _controller.start();
              },
              child: Text('Start Look Around'),
            ),
          ),
        ],
      ),
    );
  }
}
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