feat: delete data model(wait to use data API)

entry/src/main/ets/pages/Index.ets

 // 首页：导航栏+子页面
 import {LocalPage} from '../pages/LocalPage'
-import {WebPage} from '../pages/WebPage'
-import DataModel from '../viewmodel/DataModel'
-import TodoItemModel from '../viewmodel/TodoItemModel';
+import {Login} from '../pages/LoginPage'
 
 @Entry
 @Component
@@ -10,14 +8,6 @@ struct Index {
   @State currentIndex: number = 0; //导航栏下标
   private tabsController: TabsController = new TabsController();
 
-  @State totalTasks: Array<TodoItemModel> = [] //todoList - root
-
-  async aboutToAppear(): Promise<void> { //数据库
-    await DataModel.getPreferences()
-    await DataModel.getPreferenceData()
-    this.totalTasks = DataModel.getData()
-  }
-
   @Builder //导航栏
   tabBarBuilder(title: string, targetIndex: number, selectedIcon: Resource, unselectIcon: Resource) {
     Column() {
@@ -46,14 +36,14 @@ struct Index {
     Column() {
       Tabs({ barPosition: BarPosition.End, controller: this.tabsController }) {
         TabContent() {
-          LocalPage({totalTasks: $totalTasks})
+          LocalPage()
         }
-        .tabBar(this.tabBarBuilder('本地版', 0, $r('app.media.ic_01_on'), $r('app.media.ic_01_off')))
+        .tabBar(this.tabBarBuilder('TodoList', 0, $r('app.media.ic_01_on'), $r('app.media.ic_01_off')))
 
         TabContent() {
-          WebPage({totalTasks: $totalTasks})
+          Login()
         }
-        .tabBar(this.tabBarBuilder('网页版', 1, $r('app.media.ic_03_on'), $r('app.media.ic_03_off')))
+        .tabBar(this.tabBarBuilder('我的', 1, $r('app.media.ic_03_on'), $r('app.media.ic_03_off')))
       }
       .vertical(false)
       .divider({

entry/src/main/ets/pages/LocalPage.ets

@@ -8,14 +8,14 @@ import ItemDetail from '../view/ItemDetail';
 
 @Component
 export struct LocalPage {
-  @Link totalTasks: Array<TodoItemModel> //TodoList - link
-
   @Provide('localPageStack') LocalPageStack: NavPathStack = new NavPathStack(); //router
 
+  @State totalTasks: Array<ToDoItem> = []
+
   @Builder
   PageMap(name: string) {
     if(name.substring(0, 10) == 'ItemDetail') {
-      ItemDetail({content: this.totalTasks[parseInt(name.substring(10))]})
+      // ItemDetail({content: this.totalTasks[parseInt(name.substring(10))]})
     }
     else if(name == 'AddItem') {
       AddItem()
@@ -25,7 +25,8 @@ export struct LocalPage {
   build() {
     Navigation(this.LocalPageStack) {
       Row() { //顶栏
-        Text('待办事项')
+        // 文字标题
+        Text('Todolist')
           .fontWeight(FontWeight.Bold)
           .fontSize(CommonConstants.title1_font_size)
           .lineHeight(CommonConstants.title1_font_height)
@@ -35,7 +36,7 @@ export struct LocalPage {
             bottom: CommonConstants.title1_margin_bottom,
           })
           .textAlign(TextAlign.Start)
-
+        // 添加按钮
         Button('+')
           .fontSize(CommonConstants.button_font_size)
           .width(CommonConstants.button_size)
@@ -47,7 +48,7 @@ export struct LocalPage {
           })
           .onClick(() => {
             this.LocalPageStack.pushDestination({name:"AddItem", onPop: ()=> {
-              this.totalTasks = DataModel.getData() //返回时更新数据（应对添加数据的情况）
+              // this.totalTasks = DataModel.getData() //返回时更新数据（应对添加数据的情况）
             }})
           })
       }
@@ -58,7 +59,7 @@ export struct LocalPage {
             ToDoItem({totalTasks: $totalTasks, myIndex: index, myTask: item})
               .onClick(() => { //点击进入详情页
                 this.LocalPageStack.pushDestination({name: 'ItemDetail' + index, onPop: ()=> {
-                  this.totalTasks = DataModel.getData() //返回时更新数据（应对删除数据的情况）
+                  // this.totalTasks = DataModel.getData() //返回时更新数据（应对删除数据的情况）
                 }})
                 // item.itemName = '1' //在这里的改变无法被子组件察觉，而且不会存储
               })

entry/src/main/ets/pages/LoginPage.ets

+// 登陆页面
+import { router, promptAction } from '@kit.ArkUI'
+
+@Component
+export struct Login {
+  @State name: string = ''
+  @State pwd: string = ''
+
+  // 提交
+  handleSubmit() {
+    if(this.name === '' || this.pwd === '') {
+      promptAction.showToast({ message: '账号或密码不能为空' })
+    }else {
+      // 登录接口逻辑...
+
+      promptAction.showToast({ message: '登录成功' })
+      setTimeout(() => {
+        router.replaceUrl({ url: 'pages/Index' })
+      }, 2000)
+    }
+  }
+
+  build() {
+    Column() {
+      Column({space: 10}) {
+        Image('../../resources/base/media/startIcon.png').height(50).width(50)
+        Text('HarmonyOS-Chat').fontSize(18).fontColor('#0a59f7')
+      }
+      .margin({top: 50})
+      Column({space: 15}) {
+        TextInput({placeholder: '请输入账号'})
+          .onChange((value) => {
+            this.name = value
+          })
+        TextInput({placeholder: '请输入密码'}).type(InputType.Password)
+          .onChange((value) => {
+            this.pwd = value
+          })
+        Button('登录').height(45).width('100%')
+          .linearGradient({ angle: 135, colors: [['#0a59f7', 0.1], ['#07c160', 1]] })
+          .onClick(() => {
+            this.handleSubmit()
+          })
+      }
+      .margin({top: 30})
+      .width('80%')
+      Row({space: 15}) {
+        Text('忘记密码').fontSize(14).opacity(0.5)
+        Text('注册账号').fontSize(14).opacity(0.5)
+          .onClick(() => {
+            // router.pushUrl({url: 'pages/views/auth/Register'})
+          })
+      }
+      .margin({top: 20})
+    }
+    .height('100%')
+    .width('100%')
+    .expandSafeArea([SafeAreaType.SYSTEM], [SafeAreaEdge.TOP, SafeAreaEdge.BOTTOM])
+  }
+}
\ No newline at end of file