HarmonyOS 鸿蒙Next 卡片服务跳转指定页

FormLink中uri与abilityName效果一致，都是跳转至应用的uiAbility，建议使用abilityName，通过配置相对应模块的abilityname，再对应的ability中通过判断FormLink传递的params跳转至某一个页面。可参考以下demo，

//WidgetCard.ets

[@Entry](/user/Entry)

[@Component](/user/Component)

struct WidgetCard {

  build() {

    FormLink({

      action: 'router',

      abilityName: 'EntryAbility',

      params: {

        message: 'PageB'

      }

    }) {

      Button('click')

    }.margin(10)

  }

}

//EntryAbility.ets

import { AbilityConstant, UIAbility, Want } from '[@kit](/user/kit).AbilityKit';

import { hilog } from '[@kit](/user/kit).PerformanceAnalysisKit';

import { window } from '[@kit](/user/kit).ArkUI';

const TAG: string = 'EntryAbility';

const DOMAIN_NUMBER: number = 0xFF00;

export default class EntryAbility extends UIAbility {

  private selectPage: string = '';

  private currentWindowStage: window.WindowStage | null = null;

  onCreate(want: Want, launchParam: AbilityConstant.LaunchParam): void {

    hilog.info(DOMAIN_NUMBER, TAG, `Ability onCreate, ${JSON.stringify(want)}`);

    if (want.parameters !== undefined) {

      let params: Record<string, string> = JSON.parse(JSON.stringify(want.parameters));

      this.selectPage = params.targetPage;

    }

    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onCreate');

  }

  onNewWant(want: Want, launchParam: AbilityConstant.LaunchParam): void {

    hilog.info(DOMAIN_NUMBER, TAG, `onNewWant Want: ${JSON.stringify(want)}`);

    if (want.parameters?.params !== undefined) {

      let params: Record<string, string> = JSON.parse(JSON.stringify(want.parameters));

      this.selectPage = JSON.parse(params.params).message

    }

    if (this.currentWindowStage !== null) {

      this.onWindowStageCreate(this.currentWindowStage);

    }

  }

  onDestroy(): void {

    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onDestroy');

  }

  onWindowStageCreate(windowStage: window.WindowStage): void {

    // Main window is created, set main page for this ability

    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onWindowStageCreate');

    let targetPage: string='pages/Index';

    if(this.selectPage=='PageB'){

      targetPage='pages/PageB'

    }

    if (this.currentWindowStage === null) {

      this.currentWindowStage = windowStage;

    }

    windowStage.loadContent(targetPage, (err) => {

      if (err.code) {

        hilog.error(0x0000, 'testTag', 'Failed to load the content. Cause: %{public}s', JSON.stringify(err) ?? '');

        return;

      }

      hilog.info(0x0000, 'testTag', 'Succeeded in loading the content.');

    });

  }

  onWindowStageDestroy(): void {

    // Main window is destroyed, release UI related resources

    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onWindowStageDestroy');

  }

  onForeground(): void {

    // Ability has brought to foreground

    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onForeground');

  }

  onBackground(): void {

    // Ability has back to background

    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onBackground');

  }

}