ini myapp and review rest api

app/src/main/ets/MyApp.ets

@@ -0,0 +1,23 @@
+import { Context } from '@ohos.arkui.UIContext';
+import window from '@ohos.window';
+
+export class MyApp {
+
+  static appContext: Context;
+  static uiContext: UIContext;
+  static mainWindow: window.Window;
+  static uiAbilityContext: Context;
+
+  private constructor() {
+  }
+
+  static initAbility(uiAbilityContext: Context) {
+    MyApp.uiAbilityContext = uiAbilityContext;
+    MyApp.appContext = uiAbilityContext.getApplicationContext();
+  }
+
+  static initWindow(window: window.Window) {
+    MyApp.mainWindow = window;
+    MyApp.uiContext = window.getUIContext();
+  }
+}

app/src/main/ets/appability/AppAbility.ets

@@ -1,6 +1,7 @@
 import { AbilityConstant, UIAbility, Want } from '@kit.AbilityKit';
 import { hilog } from '@kit.PerformanceAnalysisKit';
 import { window } from '@kit.ArkUI';
+import { MyApp } from '../MyApp';
 
 const TAG = '[AppAbility]'
 
@@ -21,12 +22,13 @@ export default class AppAbility extends UIAbility {
   onWindowStageCreate(windowStage: window.WindowStage): void {
     // Main window is created, set main page for this ability
     hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onWindowStageCreate');
-
+    MyApp.initAbility(this.context);
     windowStage.loadContent('pages/Index', (err, data) => {
       if (err.code) {
         hilog.error(0x0000, 'testTag', 'Failed to load the content. Cause: %{public}s', JSON.stringify(err) ?? '');
         return;
       }
+      MyApp.initWindow(windowStage.getMainWindowSync());
       hilog.info(0x0000, 'testTag', 'Succeeded in loading the content. Data: %{public}s', JSON.stringify(data) ?? '');
     });
   }

app/src/main/ets/pages/Index.ets

@@ -8,6 +8,7 @@ import { BaseLocalStorage, ScreenUtil } from '@devwiki/base';
 import { HomeItem, HomeItemGroup } from '../model/Home';
 import { Context } from '@kit.AbilityKit';
 import { Calculator } from '@devwiki/hmcalculate';
+import { MyApp } from '../MyApp';
 
 import('./animation/LoadingPage')
 
@@ -68,8 +69,8 @@ struct Index {
   ];
 
   aboutToAppear(): void {
-    ScreenUtil.getInstance().initScreenSize();
-    BaseLocalStorage.getInstance().init(getContext(this));
+    ScreenUtil.getInstance().initScreenSize(MyApp.appContext);
+    BaseLocalStorage.getInstance().init(MyApp.appContext);
   }
 
   onPageShow(): void {

app/src/main/ets/pages/net/RestAPIPage.ets

@@ -1,5 +1,8 @@
 import { Log } from '@devwiki/base/Index';
 import axios, { AxiosError, AxiosResponse } from '@ohos/axios'
+import http from '@ohos.net.http';
+
+const TAG = '[RestAPIPage]'
 
 @Entry({routeName: "RestAPIPage"})
 @Component
@@ -8,29 +11,37 @@ export struct RestAPIPage {
   @State viewModel: RestAPIViewModel = new RestAPIViewModel();
 
   build() {
-    Row() {
+    Column() {
       Flex({
-        justifyContent: FlexAlign.SpaceBetween
+        justifyContent: FlexAlign.Start,
+        direction: FlexDirection.Column,
+        alignItems: ItemAlign.Center
       }) {
-        Button("Get").onClick(() =>{
-          this.viewModel.getServerVersion();
-        })
+        Button("GetByAxios").onClick(() =>{
+          this.viewModel.getServerVersionByAxios();
+        }).margin({top: 20})
 
-        Text(this.viewModel.serverVersion).backgroundColor(Color.Blue).flexGrow(1);
-      }
-    }.justifyContent(FlexAlign.Start).alignItems(VerticalAlign.Center).width('80%').backgroundColor(Color.Green)
+        Button("GetByHttp").onClick(() =>{
+          this.viewModel.getServerVersionByHttp();
+        }).margin({top: 20})
+
+        Text(this.viewModel.serverVersion).margin({top: 20})
+      }.width('80%')
+    }.width('100%')
   }
 }
 
 
 class RestAPIViewModel {
 
+  readonly viewUrl: string = 'https://music.devwiki.net/rest/ping.view?v=1.16.1&c=myapp&f=json';
   serverVersion: string = '123'
 
-  async getServerVersion() {
+  async getServerVersionByAxios() {
+    this.serverVersion = ''
     await axios({
       method: "post",
-      url: 'https://music.devwiki.net/rest/ping.view?v=1.16.1&c=myapp&f=json'
+      url: this.viewUrl
     }).then((response: AxiosResponse) => {
       if (response.status == 200) {
         let version:string = response.data['subsonic-response']['serverVersion'];
@@ -41,4 +52,22 @@ class RestAPIViewModel {
       Log.e(error.message);
     })
   }
+
+  getServerVersionByHttp() {
+    this.serverVersion = ''
+    let httpRequest = http.createHttp();
+    let option:http.HttpRequestOptions = {
+      method: http.RequestMethod.GET
+    };
+    httpRequest.request(this.viewUrl, option, (error, resp) =>{
+      if (!error) {
+        Log.i(TAG, 'request http code:' + resp.responseCode)
+        let version:string = resp.result['subsonic-response']['serverVersion'];
+        this.serverVersion = version;
+      } else {
+        Log.e(TAG, `request failed, code:${error.code}, message:${error.message}`)
+      }
+      httpRequest.destroy();
+    });
+  }
 }

app/src/main/ets/pages/system/SetLanguagePage.ets

@@ -1,5 +1,8 @@
 import { TitleBar } from '@devwiki/common_ui';
 import { i18n } from '@kit.LocalizationKit';
+import { Log } from '@devwiki/base';
+
+const TAG = '[SetLanguagePage]'
 
 @Entry
 @Component
@@ -7,6 +10,13 @@ struct SetLanguagePage {
   private readonly languageGroup = "languageGroup"
   @State selectedLanguage: string = 'zh-Hans';
 
+  aboutToAppear(): void {
+    let languages:string[] = i18n.System.getSystemLanguages();
+    languages.forEach((value, index) => {
+      Log.i(TAG, `${index.toString()}:${value}`)
+    })
+  }
+
   build() {
     Column() {
       TitleBar({

base/src/main/ets/utils/Log.ets

@@ -2,8 +2,8 @@
 import hilog from '@ohos.hilog';
 
 let domain: number = 0xFF00;
-let prefix: string = 'HM4Demo';
-let format: string = `%{public}s`;
+let prefix: string = 'HMDemo';
+let format: string = `%{public}s, %{public}s`;
 
 export class Log {
 

base/src/main/ets/utils/ScreenUtil.ets

@@ -25,11 +25,11 @@ export class ScreenUtil {
     return ScreenUtil.instance;
   }
 
-  initScreenSize(): void {
+  initScreenSize(context: Context): void {
     this.portraitListener.on('change', (result)=> {
       AppStorage.setOrCreate(ScreenUtil.isPortraitKey, result.matches)
     })
-    window.getLastWindow(getContext(this))
+    window.getLastWindow(context)
       .then((windowClass: window.Window) => {
         let type = window.AvoidAreaType.TYPE_NAVIGATION_INDICATOR; // 以导航条避让为例
         let avoidArea = windowClass.getWindowAvoidArea(type);