背景:
前几篇学习了元服务,后面几期就让我们开发简单的元服务吧,里面丰富的内容大家自己加,本期案例 仅供参考
先上本期效果图 ,里面图片自行替换
效果图1完整代码案例如下:
import { authentication } from '@kit.AccountKit';import { BusinessError } from '@kit.BasicServicesKit';import { hilog } from '@kit.PerformanceAnalysisKit';@Extend(Text)function text1() { .fontColor('#7F7F7F').fontSize(12)}@Extend(Text)function text2() { .fontColor('#181818').fontSize(20).margin({ top: 5 })}@Entry@Componentstruct Index { @State message: string = ''; build() { Column() { Text($r('app.string.EntryAbility_label')).fontSize(38).fontWeight(FontWeight.Bold).margin({ top: 60 }) Text('距离日出还剩').fontSize(18).fontWeight(FontWeight.Bold).margin({ top: 10 }) Text(this.message).fontSize(22).fontWeight(FontWeight.Bold).margin({ top: 10 }) Text('更新于' + this.getHour()).fontSize(15).margin({ top: 8 }).fontColor('#222222') Stack() { Column() { Column() { } .width('60%') .height(250) .borderRadius(300) .borderWidth(3) .margin({ top: 80 }) .borderColor('#5891E6') .backgroundColor('#DFE7F2') } .width('90%') .height(400) .borderRadius(500) .borderWidth(3) .borderColor('#F0A12D') .backgroundColor('#FDEDD4') Row() { Row() { Text() { ImageSpan($r('app.media.richu')).width(20).height(20) Span('07:16') } Text() { ImageSpan($r('app.media.yuechu')).width(20).height(20) Span('05:13') } } Row() { Text() { Span('15:16') ImageSpan($r('app.media.yueluo')).width(20).height(20) } Text() { Span('16:51') ImageSpan($r('app.media.riluo')).width(20).height(20) } } } .width('96%') .justifyContent(FlexAlign.SpaceBetween) .height(250) .backgroundColor(Color.White) .margin({ top: 150 }) .alignItems(VerticalAlign.Top) // 金色时刻(傍晚 )盏ばⓁ餐天时刻 // 蓝色时刻(傍晚) // 17:09-17:20 Row() { Column() { Text('金色时刻(清晨)').text1() Text('06:56-07:57').text2() } Column() { Text('日照时长').text1() Text('9.6h').text2() } Column() { Text('蓝色时刻(清晨)').text1() Text('06:45-06:56').text2() } }.width('100%').justifyContent(FlexAlign.SpaceAround).margin({ top: 30 }) Row() { Column() { Text('金色时刻(傍晚)').text1() Text('16:09-17:09').text2() } Column() { Text('中天时刻').text1() Text('12:03').text2() } Column() { Text('蓝色时刻(傍晚)').text1() Text('17:09-17:20').text2() } }.width('100%').justifyContent(FlexAlign.SpaceAround).margin({ top: 140 }) }.margin({ top: 30 }).width('100%') } .height('100%') .width('100%') } aboutToAppear() { hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onCreate'); this.loginWithHuaweiID(); this.getDate(); } /** * Sample code for using HUAWEI ID to log in to atomic service. * According to the Atomic Service Review Guide, when a atomic service has an account system, * the option to log in with a HUAWEI ID must be provided. * The following presets the atomic service to use the HUAWEI ID silent login function. * To enable the atomic service to log in successfully using the HUAWEI ID, please refer * to the HarmonyOS HUAWEI ID Access Guide to configure the client ID and fingerprint certificate. */ private loginWithHuaweiID() { // Create a login request and set parameters let loginRequest = new authentication.HuaweiIDProvider().createLoginWithHuaweiIDRequest(); // Whether to forcibly launch the HUAWEI ID login page when the user is not logged in with the HUAWEI ID loginRequest.forceLogin = false; // Execute login request let controller = new authentication.AuthenticationController(); controller.executeRequest(loginRequest).then((data) => { let loginWithHuaweiIDResponse = data as authentication.LoginWithHuaweiIDResponse; let authCode = loginWithHuaweiIDResponse.data?.authorizationCode; // Send authCode to the backend in exchange for unionID, session }).catch((error: BusinessError) => { hilog.error(0x0000, 'testTag', 'error: %{public}s', JSON.stringify(error)); if (error.code == authentication.AuthenticationErrorCode.ACCOUNT_NOT_LOGGED_IN) { // HUAWEI ID is not logged in, it is recommended to jump to the login guide page } }); } private getDate() { // 获取当前时间的时间戳(以毫秒为单位) const currentTime = Date.now(); // 计算10个小时后的时间戳(1小时 = 3600000毫秒) let tenHoursLater = currentTime + 7 * 3600000; let interval: number; const updateCountdown = () => { // 获取当前时间的时间戳 const now = Date.now(); // 计算剩余时间(以毫秒为单位) const remainingTime = tenHoursLater - now; // 如果剩余时间小于等于0,说明倒计时结束,清除定时器并重新开始倒计时 if (remainingTime <= 0) { clearInterval(interval); // 重新计算10个小时后的时间戳 tenHoursLater = Date.now() + 7 * 3600000; // 重新开始倒计时 interval = setInterval(updateCountdown, 1000); return; } // 将剩余时间转换为小时、分钟、秒的格式 const hours = Math.floor(remainingTime / 3600000); const minutes = Math.floor((remainingTime % 3600000) / 60000); const seconds = Math.floor((remainingTime % 60000) / 1000); // 在控制台输出当前剩余时间 // console.log(`${hours}小时 ${minutes}分钟 ${seconds}秒`); this.message = `0${hours}小时 ${minutes}分钟 ${seconds}秒`; }; // 开始倒计时 interval = setInterval(updateCountdown, 1000); } private getHour() { // 获取当前时间的时间戳(以毫秒为单位) const timestamp = Date.now(); // 根据时间戳创建一个Date对象 const currentDate = new Date(timestamp); // 获取年份(例如:2024) const year = currentDate.getFullYear(); // 获取月份(取值范围是0 - 11,0代表一月,11代表十二月) const month = currentDate.getMonth() + 1; // 需加1以得到实际的月份值 // 获取日期(取值范围是1 - 31) const day = currentDate.getDate(); // 获取小时(24小时制,取值范围是0 - 23) const hours = currentDate.getHours(); // 获取分钟(取值范围是0 - 59) const minutes = currentDate.getMinutes(); return `${year} 年 ${month} 月 ${day} 日 ${hours} : ${minutes}`; }}
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HarmonyOS NEXT实战:元服务与应用 APP 发布应用市场的详细步骤与流程