?介紹

服務(wù)卡片的布局和使用，其中卡片內(nèi)容顯示使用了一次開(kāi)發(fā)，多端部署的能力實(shí)現(xiàn)多設(shè)備自適應(yīng)。
用到了卡片擴(kuò)展模塊接口，[@ohos.app.form.FormExtensionAbility]?。

卡片信息和狀態(tài)等相關(guān)類型和枚舉接口，[@ohos.app.form.formInfo]。

卡片數(shù)據(jù)綁定的能力接口[@ohos.app.form.formBindingData]。

效果預(yù)覽

主頁(yè)	卡片

使用說(shuō)明

長(zhǎng)按示例應(yīng)用，等待出現(xiàn)服務(wù)卡片字樣，點(diǎn)擊后可左右滑動(dòng)選擇需要的卡片尺寸，添加到屏幕。

更多鴻蒙開(kāi)發(fā)應(yīng)用知識(shí)已更新gitee.com/li-shizhen-skin/harmony-os/blob/master/README.md參考前往。

具體實(shí)現(xiàn)

?1、在module.json5文件添加拓展能力，類型為卡片，并設(shè)置卡片入口srcEntrance和卡片元數(shù)據(jù)metadata。[源碼參考] 。

/** Copyright (c) 2023 Huawei Device Co., Ltd.* Licensed under the Apache License, Version 2.0 (the "License");* you may not use this file except in compliance with the License.* You may obtain a copy of the License at**     http://www.apache.org/licenses/LICENSE-2.0** Unless required by applicable law or agreed to in writing, software* distributed under the License is distributed on an "AS IS" BASIS,* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.* See the License for the specific language governing permissions and* limitations under the License.*/{"module": {"name": "entry","type": "entry","description": "$string:module_desc","mainElement": "EntryAbility","deviceTypes": ["default","tablet"],"deliveryWithInstall": true,"installationFree": false,"pages": "$profile:main_pages","abilities": [{"name": "EntryAbility","srcEntrance": "./ets/entryability/EntryAbility.ets","description": "$string:EntryAbility_desc","icon": "$media:icon","label": "$string:EntryAbility_label","startWindowIcon": "$media:icon","startWindowBackground": "$color:start_window_background","visible": true,"skills": [{"entities": ["entity.system.home"],"actions": ["action.system.home"]}]}],"extensionAbilities": [{"name": "EntryFormAbility","srcEntrance": "./ets/entryformability/EntryFormAbility.ets","label": "$string:EntryFormAbility_label","description": "$string:EntryFormAbility_desc","type": "form","metadata": [{"name": "ohos.extension.form","resource": "$profile:form_config"}]}]}}

例如："metadata": [ { "name": "ohos.extension.form", "resource": "$profile:form_config" }。
2、初始化卡片：通過(guò)實(shí)現(xiàn)@ohos.app.form.FormExtensionAbility卡片操作類，在卡片對(duì)象首次被創(chuàng)建時(shí)，初始化卡片綁定數(shù)據(jù)為空，并將卡片狀態(tài)設(shè)置為就緒狀態(tài)READY。 例如：onCreate(){ formBindingData.createFormBindingData({}) onAcquireFormState(want) { return formInfo.FormState.READY }。
3、配置卡片：用js編寫(xiě)相應(yīng)的卡片，將卡片配置到resources/base/profile/form_config,?[源碼參考]

{"forms": [{"name": "complex","description": "This is a service widget.","src": "./js/complex/pages/index/index","window": {"designWidth": 720,"autoDesignWidth": true},"colorMode": "auto","isDefault": true,"updateEnabled": true,"scheduledUpdateTime": "10:30","updateDuration": 1,"defaultDimension": "2*2","supportDimensions": ["2*2","4*4"]},{"name": "test","description": "This is a service widget.","src": "./js/test/pages/index/index","window": {"designWidth": 720,"autoDesignWidth": true},"colorMode": "auto","isDefault": false,"updateEnabled": true,"scheduledUpdateTime": "10:30","updateDuration": 1,"defaultDimension": "2*2","supportDimensions": ["2*2"]},{"name": "immersive","description": "This is a service widget.","src": "./js/immersive/pages/index/index","window": {"designWidth": 720,"autoDesignWidth": true},"colorMode": "auto","isDefault": false,"updateEnabled": true,"scheduledUpdateTime": "10:30","updateDuration": 1,"defaultDimension": "2*2","supportDimensions": ["2*2"]},{"name": "grid","description": "This is a service widget.","src": "./js/grid/pages/index/index","window": {"designWidth": 720,"autoDesignWidth": true},"colorMode": "auto","isDefault": false,"updateEnabled": true,"scheduledUpdateTime": "10:30","updateDuration": 1,"defaultDimension": "2*2","supportDimensions": ["2*2"]},{"name": "imgText","description": "This is a service widget.","src": "./js/imgText/pages/index/index","window": {"designWidth": 720,"autoDesignWidth": true},"colorMode": "auto","isDefault": false,"updateEnabled": true,"scheduledUpdateTime": "10:30","updateDuration": 1,"defaultDimension": "2*2","supportDimensions": ["2*2","2*4"]}]}

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總結(jié)

鴻蒙—作為國(guó)家主力推送的國(guó)產(chǎn)操作系統(tǒng)。部分的高校已經(jīng)取消了安卓課程，從而開(kāi)設(shè)鴻蒙課程；企業(yè)紛紛跟進(jìn)啟動(dòng)了鴻蒙研發(fā)。

并且鴻蒙是完全具備無(wú)與倫比的機(jī)遇和潛力的；預(yù)計(jì)到年底將有 5,000 款的應(yīng)用完成原生鴻蒙開(kāi)發(fā)，未來(lái)將會(huì)支持 50 萬(wàn)款的應(yīng)用。那么這么多的應(yīng)用需要開(kāi)發(fā)，也就意味著需要有更多的鴻蒙人才。鴻蒙開(kāi)發(fā)工程師也將會(huì)迎來(lái)爆發(fā)式的增長(zhǎng)，學(xué)習(xí)鴻蒙勢(shì)在必行！