前言:
DevEco Studio版本:4.0.0.600
所谓"金刚区"是位于APP功能入口的导航区域,通常以"图标+文字"的宫格导航的形式出现。之所以叫"金刚区",是因为该区域会随着业务目标的改变,展示不同的功能图标,就像"变形金刚"一样可以百变。
效果:
实现原理:
通过效果可以知道整体是Grid+底部的指示器构建完成
Grid参考:OpenHarmony Grid组件介绍
底部指示器参考之前文章:鸿蒙中Swiper指示器位置设置_deveco studio里面的indicator属性-CSDN博客
代码实现:
import promptAction from '@ohos.promptAction';
import { KingKongBean } from '../bean/KingKongBean';
@Entry
@Component
struct Index {
// 创建swiper组件控制器
private swiperController: SwiperController = new SwiperController();
// swiper显示数据
private kingKongData: KingKongBean[] = [
new KingKongBean("https://www.wanandroid.com/blogimgs/42da12d8-de56-4439-b40c-eab66c227a4b.png", "数据一"),
new KingKongBean("https://www.wanandroid.com/blogimgs/62c1bd68-b5f3-4a3c-a649-7ca8c7dfabe6.png", "数据二"),
new KingKongBean("https://www.wanandroid.com/blogimgs/50c115c2-cf6c-4802-aa7b-a4334de444cd.png", "数据三"),
new KingKongBean("https://www.wanandroid.com/blogimgs/42da12d8-de56-4439-b40c-eab66c227a4b.png", "数据四"),
new KingKongBean("https://www.wanandroid.com/blogimgs/62c1bd68-b5f3-4a3c-a649-7ca8c7dfabe6.png", "数据五"),
new KingKongBean("https://www.wanandroid.com/blogimgs/50c115c2-cf6c-4802-aa7b-a4334de444cd.png", "数据六"),
new KingKongBean("https://www.wanandroid.com/blogimgs/42da12d8-de56-4439-b40c-eab66c227a4b.png", "数据七"),
new KingKongBean("https://www.wanandroid.com/blogimgs/62c1bd68-b5f3-4a3c-a649-7ca8c7dfabe6.png", "数据八"),
new KingKongBean("https://www.wanandroid.com/blogimgs/50c115c2-cf6c-4802-aa7b-a4334de444cd.png", "数据九"),
];
@State swiperData: Array<KingKongBean>[] = []
private maxNumber: number = 6//每个金刚区的数量
aboutToAppear() {
let countLength = this.kingKongData.length / this.maxNumber
console.info("1111111111111: " + countLength)
for (let i = 0; i < countLength; i++) {
this.swiperData.push(this.kingKongData.slice(i * this.maxNumber, (i + 1) * this.maxNumber))
console.info("1111111111111 22222: " + i)
}
}
build() {
Column() {
Swiper(this.swiperController) {
ForEach(this.swiperData, (item: Array<KingKongBean>) => {
Column() {
Grid() {
ForEach(item, (imageBean: KingKongBean) => {
GridItem() {
Column() {
//内容区
Image(imageBean.imageUrl)
.width(120)
.height(120)
.borderRadius(60)
Text(imageBean.title)
.margin({ top: 10 })
.fontSize(22)
.fontColor(Color.Black)
}.onClick(() => {
promptAction.showToast({ message: "点击了: " + imageBean.title})
})
}
})
}
.columnsTemplate('1fr 1fr 1fr')
.columnsGap(10) //列之间间距
.rowsGap(10) //行之间间距
.height(360)
//空白区
Column().width('100%').height(50)
}
})
}
.width('100%')
.loop(false)
.autoPlay(false)
//通过indicator属性,控制导航点在空白区域
.indicator(new DotIndicator().color(Color.White).bottom(15))
}
.width('100%')
.height('100%')
.backgroundColor('#F1F3F5')
}
}
KingKongBean类
export class KingKongBean {
imageUrl: string //图片地址
title: string //金刚区title
constructor(imageUrl: string, title: string) {
this.imageUrl = imageUrl
this.title = title
}
}
权限添加
因为图片链接是网络图片需要添加网络访问权限,在module.json5中添加
"requestPermissions": [
{
"name": 'ohos.permission.INTERNET'
}
]