[文章]HarmonyOS原子化服务卡片immersive（JAVA）体验

一、技术相关
项目名称:  immersive
项目语言:  JAVA
体验模板：immersive
工具：deveco studio
二、体验内容
天气预报样式
小卡片 中卡片 大卡片
三、效果展示
图片

四、开发步骤
新建一个java的应用项目
然后构建完成项目后在jltf_template下new->module



选择的Full screen（java）模板

选择项目的empty，新建Service Widget

选择image and information模板，点击下一步

选择卡片类型，点击finish

登录你的账号然后启动模拟器即可实现效果
五、项目结构介绍

该项目采用了项目模板full srceen和卡片模板immersive，通过两种卡片结合更容易设计
六、关键代码（MainAbility）与样式实现

public class MainAbility extends Ability {     public static final int DEFAULT_DIMENSION_2X2 = 2;     public static final int DIMENSION_1X2 = 1;     public static final int DIMENSION_2X4 = 3;     public static final int DIMENSION_4X4 = 4;     private static final int INVALID_FORM_ID = -1;     private static final HiLogLabel TAG = new HiLogLabel(HiLog.DEBUG, 0x0, MainAbility.class.getName());     private String topWidgetSlice;     @Override     public void onStart(Intent intent) {         super.onStart(intent);         super.setMainRoute(MainAbilitySlice.class.getName());         if (intentFromWidget(intent)) {             topWidgetSlice = getRoutePageSlice(intent);             if (topWidgetSlice != null) {                 setMainRoute(topWidgetSlice);             }         }         stopAbility(intent);     }     @Override     protected ProviderFormInfo onCreateForm(Intent intent) {         HiLog.info(TAG, "onCreateForm");         long formId = intent.getLongParam(AbilitySlice.PARAM_FORM_IDENTITY_KEY, INVALID_FORM_ID);         String formName = intent.getStringParam(AbilitySlice.PARAM_FORM_NAME_KEY);         int dimension = intent.getIntParam(AbilitySlice.PARAM_FORM_DIMENSION_KEY, DEFAULT_DIMENSION_2X2);         HiLog.info(TAG, "onCreateForm: formId=" + formId + ",formName=" + formName);         FormControllerManager formControllerManager = FormControllerManager.getInstance(this);         FormController formController = formControllerManager.getController(formId);         formController = (formController == null) ? formControllerManager.createFormController(formId,                 formName, dimension) : formController;         if (formController == null) {             HiLog.error(TAG, "Get null controller. formId: " + formId + ", formName: " + formName);             return null;         }         return formController.bindFormData();     }     @Override     protected void onUpdateForm(long formId) {         HiLog.info(TAG, "onUpdateForm");         super.onUpdateForm(formId);         FormControllerManager formControllerManager = FormControllerManager.getInstance(this);         FormController formController = formControllerManager.getController(formId);         formController.updateFormData(formId);     }     @Override     protected void onDeleteForm(long formId) {         HiLog.info(TAG, "onDeleteForm: formId=" + formId);         super.onDeleteForm(formId);         FormControllerManager formControllerManager = FormControllerManager.getInstance(this);         formControllerManager.deleteFormController(formId);     }     @Override     protected void onTriggerFormEvent(long formId, String message) {         HiLog.info(TAG, "onTriggerFormEvent: " + message);         super.onTriggerFormEvent(formId, message);         FormControllerManager formControllerManager = FormControllerManager.getInstance(this);         FormController formController = formControllerManager.getController(formId);         formController.onTriggerFormEvent(formId, message);     }     @Override     public void onNewIntent(Intent intent) {         if (intentFromWidget(intent)) { // Only response to it when starting from a service widget.             String newWidgetSlice = getRoutePageSlice(intent);             if (topWidgetSlice == null || !topWidgetSlice.equals(newWidgetSlice)) {                 topWidgetSlice = newWidgetSlice;                 restart();             }         }     }     private boolean intentFromWidget(Intent intent) {         long formId = intent.getLongParam(AbilitySlice.PARAM_FORM_IDENTITY_KEY, INVALID_FORM_ID);         return formId != INVALID_FORM_ID;     }     private String getRoutePageSlice(Intent intent) {         long formId = intent.getLongParam(AbilitySlice.PARAM_FORM_IDENTITY_KEY, INVALID_FORM_ID);         if (formId == INVALID_FORM_ID) {             return null;         }         FormControllerManager formControllerManager = FormControllerManager.getInstance(this);         FormController formController = formControllerManager.getController(formId);         if (formController == null) {             return null;         }         Class<? extends AbilitySlice> clazz = formController.getRoutePageSlice(intent);         if (clazz == null) {             return null;         }         return clazz.getName();     } }

七、完整代码地址：
https://gitee.com/jltfcloudcn/jump_to/tree/master/immersive
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