HarmonyOS 点击系统键盘的隐藏按钮，不自动失焦，需要手工触发下别的位置才可以触发失焦

import { AbilityConstant, UIAbility, Want } from '@kit.AbilityKit'; 
import { hilog } from '@kit.PerformanceAnalysisKit'; 
import { window } from '@kit.ArkUI'; 
import { BusinessError } from '@kit.BasicServicesKit'; 
 
export default class EntryAbility extends UIAbility { 
  onCreate(want: Want, launchParam: AbilityConstant.LaunchParam): void { 
    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onCreate'); 
  } 
 
  onDestroy(): void { 
    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onDestroy'); 
  } 
 
  onWindowStageCreate(windowStage: window.WindowStage): void { 
    // Main window is created, set main page for this ability 
    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onWindowStageCreate'); 
 
    windowStage.loadContent('pages/Index', (err) => { 
      if (err.code) { 
        hilog.error(0x0000, 'testTag', 'Failed to load the content. Cause: %{public}s', JSON.stringify(err) ?? ''); 
        return; 
      } 
 
      // 获取应用主窗口。 
      let windowClass: window.Window | undefined = undefined; 
 
      windowStage.getMainWindow((err: BusinessError, data) => { 
        let errCode: number = err.code; 
        if (errCode) { 
          console.error(`Failed to obtain the main window. Cause code: ${err.code}, message: ${err.message}`); 
          return; 
        } 
        windowClass = data; 
        console.info('Succeeded in obtaining the main window. Data: ' + JSON.stringify(data)); 
 
        try { 
          //开启固定态输入法窗口软键盘高度变化的监听。 
          windowClass.on('keyboardHeightChange', (data) => { 
            console.info('Succeeded in enabling the listener for keyboard height changes. Data: ' + JSON.stringify(data)); 
          }); 
        } catch (exception) { 
          console.error(`Failed to enable the listener for keyboard height changes. Cause code: ${exception.code}, message: ${exception.message}`); 
        } 
      }) 
 
      hilog.info(0x0000, 'testTag', 'Succeeded in loading the content.'); 
    }); 
  } 
 
  onWindowStageDestroy(): void { 
    // Main window is destroyed, release UI related resources 
    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onWindowStageDestroy'); 
  } 
 
  onForeground(): void { 
    // Ability has brought to foreground 
    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onForeground'); 
  } 
 
  onBackground(): void { 
    // Ability has back to background 
    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onBackground'); 
  } 
}
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