HarmonyOS 鸿蒙Next Select如何实现可以下拉选择并且可以键盘输入

class menu {
  value1: string = ''
  value2: string = ''
}
[@Entry](/user/Entry)
[@Component](/user/Component)
struct Index {
  [@State](/user/State) menuList: menu[] = [
    {value1: 'aa-1',value2: 'aa-2'},
    {value1: 'bb-1',value2: 'bb-2'},
    {value1: 'cc-1',value2: 'cc-2'},
    {value1: 'dd-1',value2: 'dd-2'},
  ]
  [@State](/user/State) currentMenu: string = "1.0X"
  scroller: Scroller = new Scroller()
  [@Builder](/user/Builder)
  MyMenu() {
    Column(){
      Scroll(this.scroller){
        Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Center }) {
          ForEach(this.menuList, (item: menu) => {
            Row(){
              Text(item.value1).height(32)
              // Text(item.value2).height(32)
            }
            .onClick(() => {
              this.currentMenu = item.value1
            })
      })
    }
  }
  .scrollable(ScrollDirection.Vertical) <span class="hljs-comment">// 滚动方向纵向</span>
  .scrollBar(BarState.On) <span class="hljs-comment">// 滚动条常驻显示</span>
  .scrollBarColor(Color.Gray) <span class="hljs-comment">// 滚动条颜色</span>
  .scrollBarWidth(<span class="hljs-number">10</span>) <span class="hljs-comment">// 滚动条宽度</span>
  .friction(<span class="hljs-number">0.6</span>)
  .edgeEffect(EdgeEffect.None)
  .width(<span class="hljs-number">100</span>)
  .backgroundColor(<span class="hljs-number">0x80ffffff</span>)
}
.constraintSize({
  maxHeight: <span class="hljs-string">'30%'</span>
})
}
build() {
Column() {
TextInput({ text: this.currentMenu, placeholder: ‘’ })
.fontSize(32)
.bindMenu(this.MyMenu())
.backgroundColor(Color.Gray)
.width(200)
.textAlign(TextAlign.Center)
}
.width(‘100%’)
.height(“100%”)
}
}
<button style="position: absolute; padding: 4px 8px 0px; cursor: pointer; top: 8px; right: 8px; font-size: 14px;">复制</button>