《仿盒马》app开发技术分享-- 首页活动配置(5)

技术栈

Appgallery connect

开发准备

上一篇文章中我们实现了项目端云一体化首页部分模块动态配置,实现了对模块模块的后端控制显示和隐藏,这能让我们的app更加的灵活,也能应对更多的情况。现在我们来对配置模块进行完善,除了已有的模块以外,我们还有一些banner ,活动入口等模块,这些模块的数据并不多,所以我们也归纳到配置中去实现。并且我们在配置表中添加了一些不同的id,我们只需要根据相对应的id 去查询对应的表就可以了

代码实现

实现横幅海报,商品活动入口

创建海报横幅表

{

"objectTypeName": "home_poster",

"fields": [

{"fieldName": "id", "fieldType": "Integer", "notNull": true, "belongPrimaryKey": true},

{"fieldName": "poster_id", "fieldType": "Integer", "notNull": true, "defaultValue": 0},

{"fieldName": "url", "fieldType": "String"},

{"fieldName": "router", "fieldType": "String"}

],

"indexes": [

{"indexName": "posterIdIndex", "indexList": [{"fieldName":"poster_id","sortType":"ASC"}]}

],

"permissions": [

{"role": "World", "rights": ["Read"]},

{"role": "Authenticated", "rights": ["Read", "Upsert"]},

{"role": "Creator", "rights": ["Read", "Upsert", "Delete"]},

{"role": "Administrator", "rights": ["Read", "Upsert", "Delete"]}

]

}

创建商品活动入口表

{

"objectTypeName": "home_good_center",

"fields": [

{"fieldName": "id", "fieldType": "Integer", "notNull": true, "belongPrimaryKey": true},

{"fieldName": "good_left_id", "fieldType": "Integer", "notNull": true, "defaultValue": 0},

{"fieldName": "title", "fieldType": "String"},

{"fieldName": "url", "fieldType": "String"}

],

"indexes": [

{"indexName": "goodLeftIdIndex", "indexList": [{"fieldName":"good_left_id","sortType":"ASC"}]}

],

"permissions": [

{"role": "World", "rights": ["Read"]},

{"role": "Authenticated", "rights": ["Read", "Upsert"]},

{"role": "Creator", "rights": ["Read", "Upsert", "Delete"]},

{"role": "Administrator", "rights": ["Read", "Upsert", "Delete"]}

]

}

分别填充数据

海报

{

"cloudDBZoneName": "default",

"objectTypeName": "home_poster",

"objects": [

{

  "id": 10,

  "poster_id": 1,

  "url": "在线图片链接",

  "router": "string1"

}

]

}

商品活动入口

{

"cloudDBZoneName": "default",

"objectTypeName": "home_good_center",

"objects": [

{

  "id": 10,

  "good_left_id": 1,

  "title": "生鲜严选",

  "url": "在线图片链接"

},

{

  "id": 20,

  "good_left_id": 1,

  "title": "西购新品",

  "url": "在线图片链接"

},

{

  "id": 30,

  "good_left_id": 1,

  "title": "今日推荐",

  "url": "在线图片链接"

}

]

}

都填充完成后,我们把数据提交到云端,然后进行配置类的同步

接下来我们进行数据查询,因为我们在配置表中添加了id ,所以我们要查询出对应id的活动入口。

@State homeActivity:HomeActivitySetting[]=[]//首页活动配置

@State homeGoodCenter:HomeGoodCenter[]=[]//商品活动入口

let listData3 = await databaseZone.query(condition3);

  let json3 = JSON.stringify(listData3)

  let data3:HomeActivitySetting[]= JSON.parse(json3)

  this.homeActivity=data3

  hilog.error(0x0000, 'testTag', `Failed to query data, code: ${this.homeActivity}`);

  let list5 = await databaseZone.query(home_good);

  home_good.equalTo("good_left_id",data3[0].good_left_id);

  let json5 = JSON.stringify(list5)

  let data5:HomeGoodCenter[]= JSON.parse(json5)

  this.homeGoodCenter=data5

  hilog.error(0x0000, 'testTag', `Failed to query data, code: ${this.homeGoodCenter}`);

然后我们修改一下商品活动入口的内容

import { HomeGoodCenter } from "../entity/HomeGoodCenter"

@Component

@Preview

export struct SpecialColumn {

@Link goodInfo: HomeGoodCenter[]

build() {

Column(){

  List({space:10}){

    ForEach(this.goodInfo,(data:HomeGoodCenter)=>{

      ListItem(){

        Column(){

          Text(data.title)

            .fontSize(16)

            .fontWeight(FontWeight.Bold)

            .fontColor(Color.Black)

          Blank()

          Image(data.url)

            .width('28%')

            .height(90)

            .margin({ bottom: 8 })

            .objectFit(ImageFit.Cover)

        }

        .borderRadius(5)

        .backgroundColor("#ffeedeb8")

        .padding(5)

      }

    })

  }

  .listDirection(Axis.Horizontal)

}

.margin({top:10})

}

}

在首页进行调用

SpecialColumn({goodInfo:this.homeGoodCenter})

到这里我们就实现了活动配置相关的内容

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