@ohos.app.form.FormExtensionAbility (FormExtensionAbility)
系统能力：SystemCapability.Ability.Form
 

示例

import FormExtensionAbility from '@ohos.app.form.FormExtensionAbility';
import formBindingData from '@ohos.app.form.formBindingData';
import formProvider from '@ohos.app.form.formProvider';

export default class MyFormExtensionAbility extends FormExtensionAbility {
  onChangeFormVisibility(newStatus) {
    console.log('FormExtensionAbility onChangeFormVisibility, newStatus: ${newStatus}');
    let obj2 = formBindingData.createFormBindingData({
      temperature: '22c',
      time: '22:00'
    });

    for (let key in newStatuvalue= ${newStatus[key]}');
      fs) {
      console.log('FormExtensionAbility onChangeFormVisibility, key: ${key}, ormProvider.updateForm(key, obj2).then((data) => {
        console.log('FormExtensionAbility context updateForm, data: ${data}');
      }).catch((error) => {
        console.error('Operation updateForm failed. Cause: ${error}');
      });
    }
  }
};

onFormEvent
onFormEvent(formId: string, message: string): void
卡片提供方接收处理卡片事件的通知接口。
系统能力：SystemCapability.Ability.Form
 

示例：

export default class MyFormExtension extends FormExtensionAbility {
  onFormEvent(formId, message) {
    console.log('FormExtensionAbility onFormEvent, formId:' + formId + ', message:' + message);
  }
}

onRemoveForm
onRemoveForm(formId: string): void
卡片提供方接收销毁卡片的通知接口。
系统能力：SystemCapability.Ability.Form
 

示例：

export default class MyFormExtensionAbility extends FormExtensionAbility {
  onRemoveForm(formId) {
    console.log('FormExtensionAbility onRemoveForm, formId:' + formId);
  }
}

onConfigurationUpdate
onConfigurationUpdate(newConfig: Configuration): void;
当系统配置更新时调用。
系统能力：SystemCapability.Ability.Form
 

示例：

class MyFormExtensionAbility extends FormExtensionAbility {
  onConfigurationUpdate(config) {
    console.log('onConfigurationUpdate, config:' + JSON.stringify(config));
  }
}

onAcquireFormState
onAcquireFormState?(want: Want): formInfo.FormState;
卡片提供方接收查询卡片状态通知接口。默认返回卡片初始状态。
系统能力：SystemCapability.Ability.Form
 

示例：

import formInfo from '@ohos.app.form.formInfo';
class MyFormExtensionAbility extends FormExtensionAbility {
  onAcquireFormState(want) {
    console.log('FormExtensionAbility onAcquireFormState, want:' + want);
    return formInfo.FormState.UNKNOWN;
  }
}

本文根据HarmonyOS官方开发文档整理