地图选点Button的实现

// ChooseLocation.ets
import { FunctionalButton, functionalButtonComponentManager } from '@kit.ScenarioFusionKit';
import { hilog } from '@kit.PerformanceAnalysisKit';

@Entry
@Component
struct Index {
  build() {
    Row() {
      Column() {
        // 声明FunctionalButton
        FunctionalButton({
          params: {
            // OpenType.CHOOSE_LOCATION表示Button为地图选点类型
            openType: functionalButtonComponentManager.OpenType.CHOOSE_LOCATION,
            label: '地图选点',
            // 调整Button样式
            styleOption: {
              bgColor: functionalButtonComponentManager.ColorType.DEFAULT,
              size: functionalButtonComponentManager.SizeType.DEFAULT,
              plain: false,
              disabled: false,
              loading: false,
              hoverClass: functionalButtonComponentManager.HoverClassType.HOVER_CLASS,
              hoverStartTime: 0,
              hoverStayTime: 0,
              styleConfig: new functionalButtonComponentManager.ButtonConfig()
                .fontSize(20)
                .fontColor(Color.Black)
            }
          },
          // OpenType为“CHOOSE_LOCATION”时，回调必须选择“onChooseLocation”
          controller: new functionalButtonComponentManager.FunctionalButtonController()
            .onChooseLocation((err, data) => {
              if (err) {
                // 错误日志处理
                hilog.error(0x0000, "testTag", "error： %{public}d %{public}s", err.code, err.message);
                return;
              }
              // 成功日志处理
              hilog.info(0x0000, "testTag", "succeeded in choosing location");
              let name: string = data.name;
              let address: string = data.address;
              let longitude: number = data.longitude;
              let latitude: number = data.latitude;
            })
        })
      }
      .width('100%')
    }
    .height('100%')
  }
}