iBest-UI@HarmonyOS

Appearance

Picker 选择器 ​

介绍 ​

提供多个选项集合供用户选择，支持单列选择、多列选择和级联选择，通常与弹出层组件配合使用。

引入 ​

ts
import { IBestPicker, IBestPickerOption } from "@ibestservices/ibest-ui";

代码演示 ​

基础用法 ​

基础用法

点我查看代码
ts
@Entry
@Component
struct DemoPage {
  @State options: IBestPickerOption[] = [
    { text: '南京', value: 'Nanjing' },
    { text: '苏州', value: 'Suzhou' },
    { text: '常州', value: 'Chazhou' },
    { text: '扬州', value: 'Yangzhou' },
    { text: '镇江', value: 'Zhejiang' }
  ]
  @State selectValue: string[] = []
  build() {
    Column(){
      IBestPicker({
        options: this.options,
        title: "标题",
        value: $selectValue,
        onConfirm: (selectedValues: Array<string>, selectTexts: Array<string>) => {
          IBestToast.show(selectTexts.join('-'))
        },
        onChange: (selectedValues: Array<string>, selectTexts: Array<string>, columnIndex: number) => {
          IBestToast.show(selectTexts.join('-'))
        }
      })
    }
  }
}

搭配弹出层使用 ​

搭配弹出层使用

点我查看代码
ts
import { IBestField, IBestPopup } from '@ibestservices/ibest-ui'
@Entry
@Component
struct DemoPage {
  @State selectValue: string[] = []
  @State filedValue: string = ""
  @State options: IBestPickerOption[] = [
    { text: '南京', value: 'Nanjing' },
    { text: '苏州', value: 'Suzhou' },
    { text: '常州', value: 'Chazhou' },
    { text: '扬州', value: 'Yangzhou' },
    { text: '镇江', value: 'Zhejiang' }
  ]
  @Builder pickerBuilder(){
    IBestPicker({
      options: this.options,
      title: "标题",
      visibleItemCount: 5,
      value: $selectValue,
      onChange: (selectedValues: Array<string>, selectTexts: Array<string>, columnIndex: number) => {
        IBestToast.show(selectTexts.join('-'))
      },
      onConfirm: (selectedValues: Array<string>, selectTexts: Array<string>) => {
        this.visible = false
        this.filedValue = selectTexts.join('-')
      },
      onCancel: () => {
        this.visible = false
      }
    })
  }
  @State visible: boolean = false
  build() {
    Column(){
      IBestField({
        label: '城市',
        value: $filedValue,
        placeholder: "请选择城市",
        isLink: true,
        hasBorder: false,
        onFieldClick: () => {
          this.visible = true
        }
      })
      // 弹出层
      IBestPopup({
        visible: $visible,
        popupAlign: "bottom",
        contentBuilder: (): void => this.pickerBuilder()
      })
    }
  }
}

默认选中 ​

默认选中

点我查看代码
ts
@Entry
@Component
struct DemoPage {
  @State selectValue: string[] = ["Suzhou"]
  @State options: IBestPickerOption[] = [
    { text: '南京', value: 'Nanjing' },
    { text: '苏州', value: 'Suzhou' },
    { text: '常州', value: 'Chazhou' },
    { text: '扬州', value: 'Yangzhou' },
    { text: '镇江', value: 'Zhejiang' }
  ]
  build() {
    Column(){
      IBestPicker({
        options: this.options,
        title: "标题",
        value: $selectValue,
        onConfirm: (selectedValues: Array<string>, selectTexts: Array<string>) => {
          IBestToast.show(selectTexts.join('-'))
        },
        onChange: (selectedValues: Array<string>, selectTexts: Array<string>, columnIndex: number) => {
          IBestToast.show(selectTexts.join('-'))
        }
      })
    }
  }
}

多列选择 ​

多列选择

点我查看代码
ts
@Entry
@Component
struct DemoPage {
  @State options: IBestPickerOption[][] = [
    [
      { text: '周一', value: 'Monday' },
      { text: '周二', value: 'Tuesday' },
      { text: '周三', value: 'Wednesday' },
      { text: '周四', value: 'Thursday' },
      { text: '周五', value: 'Friday' }
    ],
    [
      { text: '上午', value: 'Morning' },
      { text: '下午', value: 'Afternoon' },
      { text: '晚上', value: 'Evening' }
    ]
  ]
  @State selectValue: string[] = []
  build() {
    Column(){
      IBestPicker({
        options: this.options,
        title: "标题",
        value: $selectValue,
        onConfirm: (selectedValues: Array<string>, selectTexts: Array<string>) => {
          IBestToast.show(selectTexts.join('-'))
        },
        onChange: (selectedValues: Array<string>, selectTexts: Array<string>, columnIndex: number) => {
          IBestToast.show(selectTexts.join('-'))
        }
      })
    }
  }
}

级联选择 ​

级联选择

点我查看代码
ts
@Entry
@Component
struct DemoPage {
  @State options: IBestPickerOption[] = [
    {
      text: "江苏省",
      value: "320000",
      children: [
        {
          text: "南京市",
          value: "320100",
          children: [
            {
              text: "秦淮区",
              value: "320104"
            },
            {
              text: "雨花台区",
              value: "320114"
            }
          ]
        },
        {
          text: "苏州市",
          value: "320500",
          children: [
            {
              text: "姑苏区",
              value: "320508"
            },
            {
              text: "昆山市",
              value: "320583"
            }
          ]
        }
      ]
    },
    {
      text: "安徽省",
      value: "340000",
      children: [
        {
          text: "合肥市",
          value: "340100",
          children: [
            {
              text: "蜀山区",
              value: "340104"
            },
            {
              text: "合肥高新技术产业开发区",
              value: "340171"
            }
          ]
        },
        {
          text: "黄山市",
          value: "341000",
          children: [
            {
              text: "屯溪区",
              value: "341002"
            },
            {
              text: "黄山区",
              value: "341003"
            }
          ]
        }
      ]
    }
  ]
  @State selectValue: string[] = []
  build() {
    Column(){
      IBestPicker({
        options: this.options,
        title: "标题",
        value: $selectValue,
        onConfirm: (selectedValues: Array<string>, selectTexts: Array<string>) => {
          IBestToast.show(selectTexts.join('-'))
        },
        onChange: (selectedValues: Array<string>, selectTexts: Array<string>, columnIndex: number) => {
          IBestToast.show(selectTexts.join('-'))
        }
      })
    }
  }
}

API ​

@Props ​

参数说明类型默认值
value当前选中的日期, 支持双向绑定Array[string][]
options选项Array[IBestPickerOption | IBestPickerOption[]][]
title标题string''
itemHeight单项高度,单位lpxnumber88
visibleItemCount可见选项数量number6
showToolBar是否显示顶部栏booleantrue
confirmText确认按钮文字string确定
cancelText取消按钮文字string取消
groupId分组id, 通常在配合PickerGroup组件使用时传入string''

Events ​

事件名说明回调参数
onChange某一列选项变更后触发selectedValues: Array<string>, selectTexts: Array<string>, columnIndex: number
onConfirm点击确定按钮时触发selectedValues: Array<string>, selectTexts: Array<string>
onCancel点击取消按钮时触发-

IBestPickerOption 数据结构 ​

参数说明类型
text选项文字, 必传string
value选项值, 必传string
children下级选项, 可选Array[IBestPickerOption]