HarmonyOS 鸿蒙Next 携程里拉起华为地图导航的效果是如何实现的

可以通过startAbility来判断应用能否正常被拉起，如果拉起成功，说明应用存在，拉起失败，则应用不存在

import common from '@ohos.app.ability.common'

import { BusinessError } from '@kit.BasicServicesKit'

import Want from '@ohos.app.ability.Want';

function starMapDialog(context: common.UIAbilityContext): void {

  context.startAbility({

    bundleName: 'com.huawei.hmos.maps.app',

    abilityName: 'EntryAbility'

  }).then(()=> {

    console.info('successfully.')

  }).catch((err: BusinessError) =>{

    console.info('fail.')

  })

}

@Entry

@Component

struct Index {

  build() {

    Column() {

      Button('打开地图', { stateEffect: true, type: ButtonType.Capsule })

        .width('80%')

        .height(40)

        .onClick(() => {

          let context = getContext(this) as common.UIAbilityContext

          starMapDialog(context)

        })

      Button('打开地图商店详情页', { stateEffect: true, type: ButtonType.Capsule })

        .width('80%')

        .height(40)

        .margin({top: 50})

        .onClick(() => {

          const want: Want = {

            uri: `store://appgallery.huawei.com/app/detail?id=com.huawei.hmos.maps.app`

          };

          const context = getContext(this) as common.UIAbilityContext;

          context.startAbility(want).then(()=>{

            //拉起成功

          }).catch(()=>{

            // 拉起失败

          });

        })

    }.width('100%')

  }

}

使用canOpenLink判断应用是否可访问：https://developer.huawei.com/consumer/cn/doc/harmonyos-guides-V5/canopenlink-V5

华为地图的Schemes = “maps”

 "querySchemes": [

      "maps"

    ],

import { bundleManager } from '@kit.AbilityKit';

import { BusinessError } from '@kit.BasicServicesKit';

import { hilog } from '@kit.PerformanceAnalysisKit';

try {

  let link = 'maps://';

  let data = bundleManager.canOpenLink(link);

  hilog.info(0x0000, 'testTag', 'canOpenLink successfully: %{public}s', JSON.stringify(data));

} catch (err) {

  let message = (err as BusinessError).message;

  hilog.error(0x0000, 'testTag', 'canOpenLink failed: %{public}s', message);

}

建议可以参考拉起导航类应用的文档：

https://developer.huawei.com/consumer/cn/doc/harmonyos-guides-V5/start-navigation-apps-V5