基于HarmonyOS Next的智能房产装修管家开发实战

在房产与装修领域,HarmonyOS Next为开发者提供了前所未有的创新工具。本文将结合AppGallery Connect(AGC)服务与ArkTS语言,手把手教你打造一个功能全面的智能房产管家应用,涵盖房源管理、3D看房、装修设计、材料采购等核心场景,让开发过程既简单又有趣。


一、项目规划与基础搭建

技术工具箱:

  • HarmonyOS SDK 5.0
  • ArkTS声明式UI
  • AGC核心服务:云数据库、云存储、位置服务

三步快速启动:

  1. 在AGC控制台创建项目并启用Cloud DB
  2. 设计房源数据结构
  3. 配置应用权限
// 房源数据模型 Property.ets
@Observed
export class Property {
  @PrimaryKey id: string = '';          // 唯一ID
  title: string = '';                   // 房源标题
  address: string = '';                 // 详细地址
  price: number = 0;                    // 价格(单位:万元)
  area: number = 0;                     // 面积(㎡)
  @StorageLink('favorite') isFavorite: boolean = false; // 收藏状态
}

二、智能房源管理系统

核心功能:

  • 地图找房
  • 智能筛选
  • 收藏管理
// PropertyManager.ets - 房源管理
import { cloudDB, cloudStorage } from '@kit.AGConnectCloudKit';
import { geolocation } from '@kit.LocationKit';

export class PropertyManager {
  private static cloudDBZone: cloudDB.CloudDBZone | null = null;

  // 初始化云数据库
  static async init() {
    try {
      const agcCloudDB = await cloudDB.getAGConnectCloudDB();
      this.cloudDBZone = await agcCloudDB.openCloudDBZone(
        new cloudDB.CloudDBZoneConfig('PropertyDB')
      );
    } catch (err) {
      console.error('数据库初始化失败', err.message);
    }
  }

  // 获取附近房源
  static async getNearbyProperties(radius: number = 5): Promise<Property[]> {
    try {
      const location = await geolocation.getCurrentLocation();
      const query = cloudDB.CloudDBZoneQuery.where(Property)
        .withinDistance('coordinates', location, radius * 1000);
      
      const snapshot = await this.cloudDBZone.executeSnapshotQuery(query);
      return await snapshot.getAllObjects();
    } catch (err) {
      console.error('附近房源查询失败', err.message);
      return [];
    }
  }

  // 上传房源图片
  static async uploadPropertyImage(propertyId: string, image: image.PixelMap) {
    try {
      const storage = cloudStorage.getStorageInstance();
      const filePath = `properties/${propertyId}/${Date.now()}.jpg`;
      await storage.uploadFile({
        filePath,
        data: image.toArrayBuffer()
      });
      return filePath;
    } catch (err) {
      console.error('图片上传失败', err.message);
      return '';
    }
  }
}

三、沉浸式3D看房体验

技术亮点:

  • 使用HarmonyOS的3D渲染能力
  • 手势交互控制视角
  • 分布式跨设备看房
// 3DViewer.ets - 3D看房组件
import { sceneView } from '@kit.ThreeKit';

@Entry
@Component
struct PropertyViewer3D {
  @State currentAngle: number = 0;
  private sceneController: sceneView.SceneController | null = null;

  // 加载3D模型
  private async loadModel(modelUrl: string) {
    try {
      this.sceneController = await sceneView.createSceneController();
      await this.sceneController.loadScene(modelUrl);
    } catch (err) {
      console.error('3D模型加载失败', err.message);
    }
  }

  // 手势旋转控制
  @Gesture
  rotationGesture: GestureGroup = GestureGroup(GestureMode.Sequence)
    .onRotate((event: GestureEvent) => {
      this.currentAngle += event.angle;
      this.sceneController?.rotateCamera(0, -this.currentAngle * 0.5, 0);
    })

  build() {
    Stack() {
      // 3D场景容器
      SceneView({
        controller: this.sceneController
      })
        .width('100%')
        .height('100%')
      
      // 控制面板
      ViewerControls({
        onRotateLeft: () => this.sceneController?.rotateCamera(0, 30, 0),
        onRotateRight: () => this.sceneController?.rotateCamera(0, -30, 0)
      })
    }
    .gesture(this.rotationGesture)
    .onAppear(() => this.loadModel('https://model-repo/property123.glb'))
  }
}

// 分布式看房(手机→智慧屏)
function startCrossDeviceViewing(propertyId: string) {
  distributedDeviceManager.startDeviceDiscovery({
    deviceType: [DeviceType.SMART_TV]
  }).then(devices => {
    if (devices.length > 0) {
      distributedAbilityManager.startAbility({
        deviceId: devices[0].deviceId,
        bundleName: 'com.property.app',
        abilityName: 'PropertyViewerAbility',
        parameters: { propertyId }
      });
    }
  });
}

四、智能装修设计工具

核心功能:

  • AR空间测量
  • 虚拟家具摆放
  • 装修方案保存
// RenovationDesigner.ets - 装修设计
import { arEngine } from '@kit.AREngineKit';
import { drawing } from '@kit.GraphicsKit';

@Component
struct DesignCanvas {
  @State furnitureItems: Furniture[] = [];
  private drawingCanvas: drawing.Canvas | null = null;

  // 添加家具
  addFurniture(item: Furniture) {
    this.furnitureItems = [...this.furnitureItems, item];
  }

  // AR测量
  private async measureDistance() {
    try {
      const result = await arEngine.measureDistance();
      showToast(`距离测量: ${result.distance.toFixed(2)}米`);
    } catch (err) {
      console.error('AR测量失败', err.message);
    }
  }

  build() {
    Column() {
      // 设计画布
      Canvas(this.drawingCanvas)
        .width('100%')
        .height('70%')
        .backgroundColor('#F5F5F5')
        .onReady((canvas) => {
          this.drawingCanvas = canvas;
        })
      
      // 家具库
      FurniturePalette({
        onSelect: (item) => this.addFurniture(item)
      })
      
      Button('AR测量').onClick(() => this.measureDistance())
    }
  }
}

// 保存设计方案到云端
async function saveDesign(design: RenovationDesign) {
  try {
    const storage = cloudStorage.getStorageInstance();
    const filePath = `designs/${design.id}.json`;
    await storage.uploadFile({
      filePath,
      data: new TextEncoder().encode(JSON.stringify(design))
    });
    return true;
  } catch (err) {
    console.error('设计方案保存失败', err.message);
    return false;
  }
}

五、建材商城与交易系统

集成功能:

  • 材料分类浏览
  • 虚拟样板间展示
  • 安全支付
// MaterialStore.ets - 建材商城
import { pay } from '@kit.PaymentKit';

@Entry
@Component
struct BuildingMaterialStore {
  @State cartItems: MaterialItem[] = [];
  @State showARPreview: boolean = false;

  // 加入购物车
  addToCart(item: MaterialItem) {
    this.cartItems = [...this.cartItems, item];
  }

  // AR预览材料效果
  previewInAR(item: MaterialItem) {
    this.showARPreview = true;
    arEngine.loadMaterialTexture(item.textureUrl);
  }

  // 结算支付
  async checkout() {
    try {
      const total = this.cartItems.reduce((sum, item) => sum + item.price, 0);
      const result = await pay.requestPayment({
        amount: total,
        description: '建材采购'
      });
      
      if (result.code === 0) {
        showToast('支付成功!');
        this.cartItems = [];
      }
    } catch (err) {
      console.error('支付失败', err.message);
    }
  }

  build() {
    Stack() {
      // 商品列表
      MaterialCategoryList({
        onItemSelect: (item) => this.addToCart(item),
        onARPreview: (item) => this.previewInAR(item)
      })
      
      // 购物车悬浮按钮
      ShoppingCartBadge(count: this.cartItems.length)
        .position({ x: '85%', y: '90%' })
        .onClick(() => this.checkout())
      
      // AR预览层
      if (this.showARPreview) {
        ARPreviewLayer({
          onClose: () => { this.showARPreview = false; }
        })
      }
    }
  }
}

六、装修进度管理

核心功能:

  • 项目时间轴
  • 施工监控接入
  • 问题反馈系统
// RenovationTracker.ets - 进度跟踪
import { cloudDB } from '@kit.AGConnectCloudKit';
import { calendar } from '@kit.CalendarKit';

@Component
struct ProjectTimeline {
  @Link projectId: string;
  @State timelineItems: TimelineEvent[] = [];

  // 加载项目时间线
  async loadTimeline() {
    try {
      const query = cloudDB.CloudDBZoneQuery.where(TimelineEvent)
        .equalTo('projectId', this.projectId)
        .orderByAsc('date');
      
      const snapshot = await cloudDBZone.executeSnapshotQuery(query);
      this.timelineItems = await snapshot.getAllObjects();
    } catch (err) {
      console.error('时间线加载失败', err.message);
    }
  }

  // 添加日历提醒
  addCalendarReminder(event: TimelineEvent) {
    calendar.addEvent({
      title: `装修节点: ${event.title}`,
      startTime: event.date,
      endTime: event.date + 3600000, // 1小时后
      reminderMinutes: [60, 1440] // 提前1天和1小时提醒
    });
  }

  build() {
    Column() {
      ForEach(this.timelineItems, (item) => {
        TimelineItem({
          event: item,
          onRemind: () => this.addCalendarReminder(item)
        })
      })
    }
    .onAppear(() => this.loadTimeline())
  }
}

// 施工监控组件
@Component
struct ConstructionMonitor {
  @State liveVideoUrl: string = '';
  
  // 获取实时监控流
  async loadLiveStream(projectId: string) {
    try {
      const response = await fetch(`https://api.example.com/monitor/${projectId}`);
      this.liveVideoUrl = await response.text();
    } catch (err) {
      console.error('监控流获取失败', err.message);
    }
  }
  
  build() {
    Video({
      src: this.liveVideoUrl,
      controller: VideoController
    })
      .controls(false)
      .autoPlay(true)
      .onAppear(() => this.loadLiveStream('project123'))
  }
}

七、隐私与数据安全

关键防护措施:

  1. 位置信息模糊处理

    // 模糊显示具体位置
    function maskLocation(address: string): string {
      const parts = address.split('号');
      return parts.length > 1 ? `${parts[0]}号` : address;
    }
  2. 敏感数据加密

    // module.json5配置
    {
      "module": {
        "requestPermissions": [
          { "name": "ohos.permission.APPROXIMATELY_LOCATION" }
        ],
        "metadata": {
          "encryptFields": ["price", "contact"]
        }
      }
    }
  3. 权限动态申请

    async function requestCameraPermission() {
      const atManager = abilityAccessCtrl.createAtManager();
      const result = await atManager.requestPermissionsFromUser(
        getContext(), 
        ['ohos.permission.CAMERA']
      );
      return result.permissions[0].granted;
    }

八、扩展应用场景

  1. AI装修风格推荐

    import { ai } from '@kit.AIKit';
    
    const styleAnalyzer = ai.createImageAnalyzer();
    styleAnalyzer.analyze(photo).then(result => {
      showRecommendation(result.stylePreferences);
    });
  2. 建材用量计算器

    // 根据房间尺寸计算材料用量
    function calculateMaterial(area: number, material: Material): number {
      return Math.ceil(area / material.coveragePerUnit);
    }
  3. 装修贷款计算器

    // 等额本息计算
    function calculateLoan(principal: number, months: number, rate: number) {
      const monthlyRate = rate / 12;
      return principal * monthlyRate * Math.pow(1 + monthlyRate, months) / 
             (Math.pow(1 + monthlyRate, months) - 1);
    }

结语:打造房产装修新体验

通过HarmonyOS Next的强大能力,我们实现了:

  1. 看房革命 - 3D沉浸式看房替代传统图片
  2. 装修可视化 - AR技术实现"所见即所得"
  3. 全流程管理 - 从选房到装修一站式解决

最佳实践建议:

  • 使用分布式软总线实现手机与AR眼镜联动
  • 通过AGC的AB测试优化房源展示策略
  • 利用原子化服务拆分核心功能模块

林钟雪
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