HarmonyOS 地图中如何渲染多个marker

可以添加多个Marker，使用MapComponentController.addMarker接口，返回添加的marker实例 https://developer.huawei.com/consumer/cn/doc/harmonyos-references-V5/map-map-V5#section0810361284

marker自定义信息窗，请参考链接https://developer.huawei.com/consumer/cn/doc/harmonyos-guides-V5/map-marker-V5

import { map, mapCommon, MapComponent } from '@kit.MapKit';
import { AsyncCallback } from '@kit.BasicServicesKit';

@Entry
@Component
struct MarkerDemo {
  private TAG = "OHMapSDK_MarkerDemo";
  private mapOption?: mapCommon.MapOptions;
  private mapController?: map.MapComponentController;
  private callback?: AsyncCallback<map.MapComponentController>;

  aboutToAppear(): void {
    this.mapOption = {
      position: {
        target: {
          latitude: 32.120750,
          longitude: 118.788765
        },
        zoom: 15
      }
    }

    this.callback = async (err, mapController) => {
      if (!err) {
        this.mapController = mapController;
        let markerOptions: mapCommon.MarkerOptions = {
          position: {
            latitude: 32.120750,
            longitude: 118.788765
          },
          clickable: true,
          // 设置信息窗标题
          title: "自定义信息窗",
        };
        await this.mapController?.addMarker(markerOptions);
      }
    }
  }

  build() {
    Stack() {
      Column() {
        MapComponent({
          mapOptions: this.mapOption,
          mapCallback: this.callback,
          // 自定义信息窗
          customInfoWindow: this.customInfoWindow
        })
          .width('100%')
          .height('100%');
      }.width('100%')
    }.height('100%')
  }

  // 自定义信息窗BuilderParam
  @BuilderParam customInfoWindow: ($$: map.MarkerDelegate) => void = this.customInfoWindowBuilder;

  // 自定义信息窗Builder
  @Builder
  customInfoWindowBuilder($$: map.MarkerDelegate) {
    if ($$.marker) {
      Text($$.marker.getTitle())
        .width("50%")
        .height(50)
        .backgroundColor(Color.Green)
        .textAlign(TextAlign.Center)
        .fontColor(Color.Black)
        .font({ size: 25, weight: 10, style: FontStyle.Italic })
        .border({
          width: 3,
          color: Color.Black,
          radius: 25,
          style: BorderStyle.Dashed
        })

    }
  }
}