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創(chuàng)建ArkTS卡片,需實(shí)現(xiàn)FormExtensionAbility生命周期接口。
- import formInfo from '@ohos.app.form.formInfo';
- import formBindingData from '@ohos.app.form.formBindingData';
- import FormExtensionAbility from '@ohos.app.form.FormExtensionAbility';
- import formProvider from '@ohos.app.form.formProvider';
- import formInfo from '@ohos.app.form.formInfo';
- import formBindingData from '@ohos.app.form.formBindingData';
- import FormExtensionAbility from '@ohos.app.form.FormExtensionAbility';
- import formProvider from '@ohos.app.form.formProvider';
- export default class EntryFormAbility extends FormExtensionAbility {
- onAddForm(want) {
- console.info('[EntryFormAbility] onAddForm');
- // 在入?yún)ant中可以取出卡片的唯一標(biāo)識(shí):formId
- let formId: string = want.parameters[formInfo.FormParam.IDENTITY_KEY];
- // 使用方創(chuàng)建卡片時(shí)觸發(fā),提供方需要返回卡片數(shù)據(jù)綁定類
- let obj = {
- 'title': 'titleOnAddForm',
- 'detail': 'detailOnAddForm'
- };
- let formData = formBindingData.createFormBindingData(obj);
- return formData;
- }
- onCastToNormalForm(formId) {
- // Called when the form provider is notified that a temporary form is successfully
- // converted to a normal form.
- // 使用方將臨時(shí)卡片轉(zhuǎn)換為常態(tài)卡片觸發(fā),提供方需要做相應(yīng)的處理
- console.info(`[EntryFormAbility] onCastToNormalForm, formId: ${formId}`);
- }
- onUpdateForm(formId) {
- // 若卡片支持定時(shí)更新/定點(diǎn)更新/卡片使用方主動(dòng)請(qǐng)求更新功能,則提供方需要重寫(xiě)該方法以支持?jǐn)?shù)據(jù)更新
- console.info('[EntryFormAbility] onUpdateForm');
- let obj = {
- 'title': 'titleOnUpdateForm',
- 'detail': 'detailOnUpdateForm'
- };
- let formData = formBindingData.createFormBindingData(obj);
- formProvider.updateForm(formId, formData).catch((err) => {
- if (err) {
- // 異常分支打印
- console.error(`[EntryFormAbility] Failed to updateForm. Code: ${err.code}, message: ${err.message}`);
- return;
- }
- });
- }
- onChangeFormVisibility(newStatus) {
- // Called when the form provider receives form events from the system.
- // 需要配置formVisibleNotify為true,且為系統(tǒng)應(yīng)用才會(huì)回調(diào)
- console.info('[EntryFormAbility] onChangeFormVisibility');
- }
- onFormEvent(formId, message) {
- // Called when a specified message event defined by the form provider is triggered.
- // 若卡片支持觸發(fā)事件,則需要重寫(xiě)該方法并實(shí)現(xiàn)對(duì)事件的觸發(fā)
- console.info('[EntryFormAbility] onFormEvent');
- }
- onRemoveForm(formId) {
- // Called to notify the form provider that a specified form has been destroyed.
- // 當(dāng)對(duì)應(yīng)的卡片刪除時(shí)觸發(fā)的回調(diào),入?yún)⑹潜粍h除的卡片ID
- console.info('[EntryFormAbility] onRemoveForm');
- }
- onConfigurationUpdate(config) {
- // 當(dāng)系統(tǒng)配置信息置更新時(shí)觸發(fā)的回調(diào)
- console.info('[EntryFormAbility] configurationUpdate:' + JSON.stringify(config));
- }
- onAcquireFormState(want) {
- // Called to return a {@link FormState} object.
- // 卡片提供方接收查詢卡片狀態(tài)通知接口,默認(rèn)返回卡片初始狀態(tài)。
- return formInfo.FormState.READY;
- }
- }
FormExtensionAbility進(jìn)程不能常駐后臺(tái),即在卡片生命周期回調(diào)函數(shù)中無(wú)法處理長(zhǎng)時(shí)間的任務(wù),在生命周期調(diào)度完成后會(huì)繼續(xù)存在5秒,如5秒內(nèi)沒(méi)有新的生命周期回調(diào)觸發(fā)則進(jìn)程自動(dòng)退出。針對(duì)可能需要5秒以上才能完成的業(yè)務(wù)邏輯,建議拉起主應(yīng)用進(jìn)行處理,處理完成后使用updateForm通知卡片進(jìn)行刷新。
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