【每日学点鸿蒙知识】List+Swipe滑动冲突、下拉刷新、编译错误定位、监听生命周期、上架应用市场要求

1、HarmonyOS List+Swipe+web滑动冲突？

在List中嵌套一个横向滑动的swipe，swipe嵌套一个web，此时设置手势优先的时，web无法和list进行联动交互

题原因可能是List组件嵌套Web组件产生了滑动冲突，这里可以使用触摸测试控制来规避此种情况：.hitTestBehavior(HitTestMode.Block)
参考文档：https://developer.huawei.com/consumer/cn/doc/harmonyos-guides-V5/arkts-gesture-events-multi-level-gesture-V5

2、HarmonyOS Webview如何实现下拉刷新效果？

可以使用pulltorefresh实现下拉刷新。参考链接如下：https://ohpm.openharmony.cn/#/cn/detail/@ohos%2Fpulltorefresh

3、通过Command line进行编译，如果发生错误，如何获取到错误信息，或者能获取到编译成功状态。

用hvigor进行编译的时候，可用加上各种命令，显示相关日志信息；
- -d（设置hvigor的日志级别为debug）
- –stacktrace（hvigor默认使能关闭打印所有异常的堆栈信息，如需开启在命令行后添加该选项）
- https://developer.huawei.com/consumer/cn/doc/harmonyos-guides-V5/ide-hvigor-commandline-V5
执行命令编译时只会有返回码的：
- 构建成功：code 0
- 构建失败：code 1
- 基于不同平台采用对应方式获取该返回码就行。

4、HarmonyOS 普通对象怎么监听组件生命周期？

可以参考这个：https://gitee.com/openharmony/docs/blob/7ad8e708cebd3e4a43979e97de160da9c0533316/zh-cn/application-dev/reference/apis/js-apis-arkui-observer.md

//entryability.ets
import window from '@ohos.window';
import { BusinessError } from '@ohos.base';interface Data {window: window.Window
}export default class EntryAbility extends UIAbility {private window: window.Window | undefined = undefinedonCreate(want: Want, launchParam: AbilityConstant.LaunchParam): void {const that : EntryAbility = thisthis.context.eventHub.on("getWindow", (data: Data) => {if(that.window != undefined){data.window = that.window}else {hilog.info(0x0000, 'testTag', '%{public}s', 'that.subWindowStage == undefined');}})}onDestroy(): void {}onWindowStageCreate(windowStage: window.WindowStage): void {// Main window is created, set main page for this abilityhilog.info(0x0000, 'testTag', '%{public}s', 'Ability onWindowStageCreate');windowStage.loadContent('pages/Index2', (err, data) => {if (err.code) {hilog.error(0x0000, 'testTag', 'Failed to load the content. Cause: %{public}s', JSON.stringify(err) ?? '');return;}hilog.info(0x0000, 'testTag', 'Succeeded in loading the content. Data: %{public}s', JSON.stringify(data) ?? '');// 获取应用主窗口。let windowClass: window.Window = window.findWindow("observer0");this.window = windowClasswindowStage.getMainWindow((err: BusinessError, data) => {let errCode: number = err.code;if (errCode) {console.error('Failed to obtain the main window. Cause: ' + JSON.stringify(err));return;}})});}onWindowStageDestroy(): void {}
}
//index2.ets
import common from '@ohos.app.ability.common';
import window from '@ohos.window';
import UIContext, { UIObserver } from '@ohos.ArkUI.UIContext';
import observer from '@ohos.ArkUI.observer';
import router from '@ohos.router';interface Data11 {window: window.Window | null
}@Entry
@Component
struct Index2 {private abilityContext: common.UIAbilityContext | null = null;private uiContext: UIContext.UIContext | null = nullprivate context = getContext(this) as common.UIAbilityContext;testFunc(info: observer.RouterPageInfo) {console.log("[testFunc][UI-in-Pages] called by: Index2: " + `${info.index}` + ", name: " + `${info.name}` + ", path: " + `${info.path}` + ", state: " + `${info.state}`+ ",context: " + `${info.context}` );}aboutToAppear() {console.log("[Test] aboutToAppear before createWindow");this.abilityContext = getContext(this) as common.UIAbilityContext;let data : Data11 = {window: null};this.abilityContext.eventHub.emit("getWindow", data);if (data.window) {this.uiContext = data.window.getUIContext()} else {this.uiContext = null}router.getState()}build() {Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Center, justifyContent: FlexAlign.Center }) {Text('这是Index').fontSize(20).fontWeight(FontWeight.Bold)Button('ObserverOn').margin({top:5}).onClick(() => {let observer: UIObserver | null = this.uiContext ? this.uiContext.getUIObserver() : nullif (observer) {// 注册router页面监听，范围为当前UIContextconsole.log("[Test] set observer to ON");observer.on('routerPageUpdate', this.testFunc)}})Button('ObserverOff').margin({top:5}).onClick(() => {let observer: UIObserver | null = this.uiContext ? this.uiContext.getUIObserver() : nullif (observer) {// 注册router页面监听，范围为当前UIContextconsole.log("[Test] set observer to OFF");observer.off('routerPageUpdate', this.testFunc)}})Button('pushUrl PageOne').margin({ top: 5}).onClick(() => {router.pushUrl({url: 'pages/PageOne2',})})}.width('100%').height('100%').backgroundColor('#FFBFE5C5')}
}
//PageOne2.ets@Entry
@Component
struct PageOne2 {@State message: string = '22222222222';build() {Row() {Column() {Text(this.message).fontSize(50).fontWeight(FontWeight.Bold)}.width('100%')}.height('100%')}
}

5、HarmonyOS 设备指纹应用市场的上架SDK需要满足的条件？

需要在应用市场的上架SDK
1、IDE版本需要canary4sp1及以上版本
2、签名证书的帐号和上架SDK的帐号使用企业账号AGC申请发布证书，IDE增加签名指导：https://developer.huawei.com/consumer/cn/doc/harmonyos-guides-V5/ide-publish-app-V5
在这里插入图片描述