#鸿蒙通关秘籍#如何在HarmonyOS中实现城市快速选择？

AlphabetIndexer({ arrayValue: TAB_VALUE, selected: this.stabIndex })
  .height('100%')
  .selectedColor($r('app.color.alphabet_select_color'))
  .popupColor($r('app.color.alphabet_pop_color'))
  .selectedBackgroundColor($r('app.color.alphabet_selected_bgc'))
  .popupBackground($r('app.color.alphabet_pop_bgc'))
  .popupPosition({ x: $r('app.integer.pop_position_x'), y: $r('app.integer.pop_position_y') })
  .usingPopup(true)
  .selectedFont({ size: $r('app.integer.select_font'), weight: FontWeight.Bolder })
  .popupFont({ size: $r('app.integer.pop_font'), weight: FontWeight.Bolder })
  .alignStyle(IndexerAlign.Right)
  .onSelect((tabIndex: number) => {
    this.scroller.scrollToIndex(tabIndex);
  })
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List({ space: 14, initialIndex: 0, scroller: this.scroller }) {
  .onScrollIndex((firstIndex: number, lastIndex: number) => {
     this.stabIndex = firstIndex;
  })
}
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