今天我们将做一个OpenHarmony趣味应用——OpenHarmony藏头诗应用,是通过AI接口来做。通过调用指定的AI接口来做,接口会返回藏头诗或者继续完成诗的后面几句。

我要实现的功能主要有:

  • 生成藏头诗,
  • 生成整首诗,

你能学到的有:

  • 网络请求
  • 可滚动组件
  • 状态管理
  • 常用组件
  • 常用属性
  • 修改应用名称和图标
  • 在Config.json添加权限等

用到的接口:

接口:

https://py.myie9.com/hidepoem/坚果

请求方式:

Get

apipost请求测试

接口:

https://py.myie9.com/xuxietest/汗滴禾下土

apipost请求测试:

如何创建应用在这里不做解释。

首先预览一下应用

注意点:

允许https需要添加下面的配置

"deviceConfig": {"default": {"network": {"cleartextTraffic": true}}},

使用网络请求在config.json添加权限:

 "reqPermissions": [{"name": "ohos.permission.INTERNET"}],

完整代码:

import http from '@ohos.net.http';import RequestMethod from '@ohos.net.http';import ResponseCode from '@ohos.net.http';@Entry@Componentstruct Index {@State tibetanContent: string = "坚果的小跟班";@State tibetanInput: string = "跟着坚果学鸿蒙";@State wholeContent: string = "";@State wholeInput: string = "跟着坚果学鸿蒙";private scroller: Scroller = new Scroller()onCancel() {console.info('关闭')}build() {Scroll(this.scroller) {Column({ space: 10 }) {Text($r("app.string.title")).fontSize(26).fontWeight(FontWeight.Bold).align(Alignment.Start).margin({ top: 20 })TextInput({ placeholder: '请输入要生成的内容', }).fontSize(36).enterKeyType(EnterKeyType.Go).onChange((value) => {this.tibetanInput = value;}).height(80).margin({top: 40,left: 16,right: 16})Button("生成藏头诗").backgroundColor(Color.Pink).onClick(() => {this.TibetanRequest();})Text(this.tibetanContent).fontSize(26).fontColor(Color.Orange)TextInput({ placeholder: '请输入要生成的内容', }).fontSize(36).enterKeyType(EnterKeyType.Go).onChange((value) => {this.wholeInput = value;}).height(80).margin({left: 16,right: 16})Button("生成整首诗").backgroundColor(Color.Green).onClick(() => {this.wholePoemRequest();})Text(this.wholeContent).fontSize(24).fontColor(Color.Orange)}.padding(10)}}//藏头诗接口private TibetanRequest() {let httpRequest = http.createHttp();httpRequest.request("https://py.myie9.com/hidepoem/" + this.tibetanInput,{method: RequestMethod.RequestMethod.GET,readTimeout: 15000,connectTimeout: 15000,},(error, data) => {if (error) {console.log("error code: " + error.code + ", msg: " + error.message)} else {let code = data.responseCodeif (ResponseCode.ResponseCode.OK == code) {this.tibetanContent = data.result.toString();let header = JSON.stringify(data.header);console.log("result: " + this.tibetanContent);console.log("header: " + header);} else {console.log("response code: " + code);}}});}//整首诗接口private wholePoemRequest() {let httpRequest = http.createHttp();httpRequest.request("https://py.myie9.com/xuxietest/" + this.wholeInput,{method: RequestMethod.RequestMethod.GET,readTimeout: 15000,connectTimeout: 15000,},(error, data) => {if (error) {console.log("error code: " + error.code + ", msg: " + error.message)} else {let code = data.responseCodeif (ResponseCode.ResponseCode.OK == code) {this.wholeContent = data.result.toString();let header = JSON.stringify(data.header);console.log("result: " + this.wholeContent);console.log("header: " + header);} else {console.log("response code: " + code);}}});}}

发起网络请求

使用 @ohos.net.http 模块发起网络请求分为以下步骤:

引入http模块

import http from '@ohos.net.http';

创建一个httpRequest

let httpRequest = http.createHttp();

发起http请求

httpRequest 提供了两种 request() 方法进行网络请求,分别是无 RequestOptions 参数的请求和有 RequestOptions 参数的请求。分别介绍如下:

  1. RequestOptions 参数请求

    //藏头诗接口private TibetanRequest() {let httpRequest = http.createHttp();httpRequest.request("https://py.myie9.com/hidepoem/" + this.tibetanInput,{method: RequestMethod.RequestMethod.GET,readTimeout: 15000,connectTimeout: 15000,},(error, data) => {if (error) {console.log("error code: " + error.code + ", msg: " + error.message)} else {let code = data.responseCodeif (ResponseCode.ResponseCode.OK == code) {this.tibetanContent = data.result.toString();let header = JSON.stringify(data.header);console.log("result: " + this.tibetanContent);console.log("header: " + header);} else {console.log("response code: " + code);}}});}

    request() 方法默认采用 get 方式请求。

上述代码,重点是通过调用HTTP的AI接口,来获取生成接口返回的诗的内容,并显示在应用界面上。

修改应用描述信息

默认的应用描述信息,集中在config.json文件中。

修改string.json内容如下:

 "srcLanguage": "ets","srcPath": "MainAbility","icon": "$media:icon", //应用图标"description": "$string:desc","label": "$string:title", //应用名称"type": "page","visible": true,"launchType": "standard"

这么有趣的应用就这样完成了,比起js开发方式,eTS是不是更为简单呢。