@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
