#HarmonyOS NEXT 体验官#调用云数据库更新排行榜单 原创

import { promptAction, router } from '@kit.ArkUI';
import cloud from '@hw-agconnect/cloud';
import { PointsList } from '../PointsList';
import schema from '../idiom-schema.json';
import { Logger } from '@hw-agconnect/hmcore';
import { TAG } from '@ohos/hypium/src/main/Constant';

import { CommonConstants, FooterTabType } from '../common/CommonConstants';
import { HomePage } from '../pages/HomePage'
import { IdiomPage } from '../pages/IdiomPage'
import { PointsListPage } from '../pages/PointsListPage'
import { MinePage } from '../pages/MinePage'

AppStorage.setOrCreate('isLogin', true)
AppStorage.setOrCreate('Phone', 'admin')
AppStorage.setOrCreate('Password', '123456')


@Entry
@Component
struct Index {
  @State currentIndex: number = 0;
  @State fontColor: string = '#182431'
  @State selectedFontColor: string = '#007DFF'
  private controller: TabsController = new TabsController()
  @Provide pointsList: PointsList[] = [] //排上榜单数据

  @Builder
  tabBuilder(tabList: FooterTabType[], index: number) {
    Column() {
      Image(this.currentIndex === index ? tabList[index].icon_select : tabList[index].icon_normal)
        .width(28)
        .height(28)
        .objectFit(ImageFit.Contain)
      Text(tabList[index].title)
        .fontColor(this.currentIndex === index ? this.selectedFontColor : this.fontColor)
        .fontSize(12)
        .fontWeight(500)
        .lineHeight(20)
    }.width('100%')
  }

  //获取榜单数据
  async pointsListQuery() {
    try {
      let resultData:PointsList[] = await cloud.database({ objectTypeInfo: schema, zoneName: "idiomData" })
        .collection(PointsList).query().get();
      this.pointsList = resultData.sort((a,b)=> b.UserPoints - a.UserPoints)

      Logger.info(TAG, "query success : " + JSON.stringify(this.pointsList));
    } catch (err) {
      Logger.error(TAG, "query err------------" + JSON.stringify(err));
    }
  }

  onPageShow(): void {
    if (router.getParams() as number != null && router.getParams() as number != undefined) {
      this.currentIndex = router.getParams() as number
    } else {
      this.currentIndex = 0
    }
    this.isSilentLogin() // 是否登录
    this.pointsListQuery() //获取榜单数据
  }

  isSilentLogin() {
    cloud.auth().getCurrentUser().then(user => {
      if (user) {
        //业务逻辑
        AppStorage.set('isLogin', false)
        return
      }
      AppStorage.set('isLogin', true)
    });
  }

  build() {
    Stack() {
      Tabs({ barPosition: BarPosition.End, controller: this.controller }) {
        TabContent() {
          Column() {
            HomePage()
          }.height('100%')
          .width('100%')
          .backgroundColor(0xeeeeee)
        }.tabBar(this.tabBuilder(CommonConstants.FOOTER_TAB_TITLE, 0))

        TabContent() {
          Column() {
            IdiomPage()
          }.height('100%')
          .width('100%')
          .backgroundColor(0xeeeeee)
        }.tabBar(this.tabBuilder(CommonConstants.FOOTER_TAB_TITLE, 1))

        TabContent() {
          Column() {
            PointsListPage()
          }.height('100%')
          .width('100%')
          .backgroundColor(0xeeeeee)
        }.tabBar(this.tabBuilder(CommonConstants.FOOTER_TAB_TITLE, 2))

        TabContent() {
          Column() {
            MinePage()
          }.height('100%')
          .width('100%')
          .backgroundColor(0xeeeeee)

        }.tabBar(this.tabBuilder(CommonConstants.FOOTER_TAB_TITLE, 3))

      }
      .scrollable(false)
      .expandSafeArea([SafeAreaType.SYSTEM], [SafeAreaEdge.TOP, SafeAreaEdge.BOTTOM])
      .height("100%")
      .width("100%")
      .onChange((idx: number) => {
        this.currentIndex = idx
      })

    }
    .height('100%')
    .width('100%')
  }
}

PointsListPage .ets

import { PointsList } from '../PointsList'

@Component
export struct PointsListPage {
  @Consume pointsList:PointsList[]
  build() {
    Column(){
      Scroll(){
        Column(){
          Row(){
            Text('用户').fontSize(18).fontWeight(600)
            Text('分数').fontSize(18).fontWeight(600)
            Text('排名').fontSize(18).fontWeight(600)
          }.width('90%')
          .height(50)
          .justifyContent(FlexAlign.SpaceAround)
          ForEach(this.pointsList,(item:PointsList,idx:number)=>{
            Row(){
              Text(item.UserName).fontSize(16)
              Text(""+item.UserPoints).fontSize(16)
              Text(idx.toString()).fontSize(16)
            }.width('90%')
            .height(30)
            .justifyContent(FlexAlign.SpaceAround)
          },(item:string)=>item)
        }
        .backgroundColor(0xFFFFFF)
        .borderRadius(8)
        .width("90%")
        .height("94%")
      }

    }.width("100%")
    .height("100%")
    .justifyContent(FlexAlign.Center)
    .alignItems(HorizontalAlign.Center)
    .backgroundImage($r('app.media.idiomBackground'))
    .backgroundImageSize(ImageSize.Cover)
  }
}



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