HarmonyOS TextArea显示时无法自动聚焦

HarmonyOS

aquaa

2024-12-18 15:29:33

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回答 1

按赞同

按时间

put_get

通过requestFocus获取焦点参考demo如下：

import inputMethod from ‘@ohos.inputMethod’;

@Entry
@Component
export struct AsrPage {
  @State message: string = ‘Hello World’
  @State show: boolean = false
  inputMethodController = inputMethod.getController();
  controller: TextInputController = new TextInputController()
  inputId:string = ‘ceshi’
  aboutToAppear(): void {
    let textConfig: inputMethod.TextConfig = {
      inputAttribute: {
        textInputType: 0,
        enterKeyType: 1
      }
    }
    this.inputMethodController.attach(false, textConfig)
      .then(() => {
      })
      .catch((reason: ESObject) => {
      })
  }
  build() {
    NavDestination() {
      Column() {
        TextArea({
          placeholder: ‘’,
          text: ‘’
        })
          .width(‘100%’)
        .height(26)
          .defaultFocus(true)
          .visibility(this.show ? Visibility.Visible : Visibility.None)
          .borderColor(’#ff0000’)
        .backgroundColor(’#ff0000’)
        .id(this.inputId)

        Button(‘打开’).onClick(() => {
          this.show = true
          this.controller.caretPosition(this.message.length)
          focusControl.requestFocus(this.inputId)
          this.inputMethodController.showTextInput().then(() => {
          }).catch((reason: ESObject) => {

          })

        })
        Button(‘关闭’).onClick(() => {
          this.show = true
          this.inputMethodController.hideTextInput().then(() => {
          }).catch((reason: ESObject) => {
          })

        })
      }.justifyContent(FlexAlign.Center).width(‘100%’).height(‘100%’)
    }.hideTitleBar(true)
  }
}
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