鸿蒙原生开发手记：02-服务卡片开发

FormLink({
  action: this.ACTION_TYPE,
  abilityName: this.ABILITY_NAME,
  params: {
    action: this.MESSAGE
  }
}) {
...
}
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  onCreate(want: Want, launchParam: AbilityConstant.LaunchParam): void {

    if(want?.parameters?.params) {
      let params: Record<string, Object> = JSON.parse(want.parameters.params as string);
      this.selectPage = params.action as string;
      console.log("selectPage", this.selectPage);
    }
  }

  onNewWant(want: Want, launchParam: AbilityConstant.LaunchParam): void {
    console.log('onNewWant');
    if (want?.parameters?.params) {
      // want.parameters.params 对应 postCardAction() 中 params 内容
      let params: Record<string, Object> = JSON.parse(want.parameters.params as string);
      this.selectPage = params.action as string;
      hilog.info(DOMAIN_NUMBER, TAG, `onNewWant selectPage: ${this.selectPage}`);
    }
    if (this.currentWindowStage !== null) {
      this.onWindowStageCreate(this.currentWindowStage);
    }
  }
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