上一節(jié)已經(jīng)完成了listItem數(shù)據(jù)的聯(lián)動(dòng)，添加數(shù)據(jù)后壮锻，可以更改進(jìn)度條顯示瞳收，并更新進(jìn)度條數(shù)據(jù)至外部數(shù)據(jù)

細(xì)節(jié)完善：當(dāng)進(jìn)度條為100%時(shí)，當(dāng)前數(shù)據(jù)透明度更改

import getCurrentTime from '../common/utils/DateUtil';
import DataModel,{ TaskItemBean } from '../viewModel/DataModel';
import ProgressEditPanel from './ProgressEditPanel';
@Component
export default struct TargetListItem {
  taskItem?: TaskItemBean
  @State latestProgress?: number = 0;
  @State updateDate?: string = '';
  @State isExpanded: boolean = false;
  index:number = 0

  aboutToAppear() {
    this.latestProgress = this.taskItem?.progressValue;
    this.updateDate = this.taskItem?.updateDate;
  }

  build() {
    Column() {
      this.TargetItem()
      if (this.isExpanded){
        ...
    }
   ...
    .backgroundColor(Color.White)
    .opacity(
        this.latestProgress === 100 ? 0.4 : 1
    )
  }

33.gif

添加數(shù)據(jù)時(shí)猴伶，整體進(jìn)度更改飞苇；

import AddTargetDialog from '../view/AddTargetDialog'
import TargetInformation from '../view/TargetInformation'
import TargetList from '../view/TargetList'
import DataModel, { TaskItemBean } from '../viewModel/DataModel'
import getCurrentTime from '../common/utils/DateUtil'

@Entry
@Component
struct Index {
...
  @State@Watch('onProgressChanged') overAllProgressChanged: boolean = false;

  onProgressChanged() {
    this.totalTasksNumber = this.targetData.length;
    this.completedTasksNumber = this.targetData.filter((item: TaskItemBean) => {return item.progressValue === 100}).length;
    this.latestUpdateDate = getCurrentTime();
  }
....
  saveTask(taskName: string) {
    ...
    this.overAllProgressChanged = !this.overAllProgressChanged;
  }
 ...

sloop.gif

此時(shí)，我們發(fā)現(xiàn)蜗顽，添加數(shù)據(jù)時(shí)布卡，頂部的進(jìn)度數(shù)據(jù)已經(jīng)更新，但是雇盖，當(dāng)進(jìn)度條100%時(shí)忿等，數(shù)據(jù)沒刷新。

=> 進(jìn)度條達(dá)到100%時(shí)崔挖，刷新整體進(jìn)度已完成數(shù)據(jù)贸街；
此時(shí)庵寞，需要用到跨組件傳遞數(shù)據(jù)，@Provide和@Consume

import AddTargetDialog from '../view/AddTargetDialog'
import TargetInformation from '../view/TargetInformation'
import TargetList from '../view/TargetList'
import DataModel, { TaskItemBean } from '../viewModel/DataModel'
import getCurrentTime from '../common/utils/DateUtil'

@Entry
@Component
struct Index {
    ...
  @Provide @Watch('onProgressChanged') overAllProgressChanged: boolean = false;
    ...

思路：當(dāng)進(jìn)度條進(jìn)度發(fā)生更改時(shí)薛匪，改變overAllProgressChanged的值捐川，給父控件傳遞信號(hào)，父控件接收到信號(hào)逸尖，調(diào)用onProgressChanged方法古沥，更新進(jìn)度條已完成數(shù)。

import getCurrentTime from '../common/utils/DateUtil';
import DataModel,{ TaskItemBean } from '../viewModel/DataModel';
import ProgressEditPanel from './ProgressEditPanel';
@Component
export default struct TargetListItem {
   ...
  @Consume overAllProgressChanged: boolean;
    ...
  build() {
    Column() {
      this.TargetItem()
      if (this.isExpanded){
        ProgressEditPanel({
           ...
            let result = DataModel.updateProgress(this.index, this.latestProgress, this.updateDate);
            if (result) {
              this.overAllProgressChanged = !this.overAllProgressChanged;
            }
          }
        })
      }
    }
    ...

sloop.gif

至此娇跟，我們發(fā)現(xiàn)listI的所有功能已完成岩齿。

ps:
官網(wǎng)案例還有新增數(shù)據(jù)時(shí)，有編輯功能苞俘，點(diǎn)擊編輯盹沈，還有全選功能，就不更新了吃谣，可以慢慢嘗試乞封；
理清楚思路很重要，千萬不要一個(gè)勁的CV岗憋！
同時(shí)歌亲，還可以對(duì)項(xiàng)目進(jìn)行擴(kuò)展，比如數(shù)據(jù)生成后澜驮，點(diǎn)擊item可以更改之前輸入的內(nèi)容等。
總之：理清楚思路惋鸥，明白先做什么杂穷，再做什么

gitee代碼鏈接：https://gitee.com/runitwolf/target-management