HarmonyOS 状态栏上的电池条颜色，动态隐藏状态栏

import { AbilityConstant, UIAbility, Want } from '@kit.AbilityKit';  
import { window } from '@kit.ArkUI';  
import { BusinessError } from '@kit.BasicServicesKit';  
export default class EntryAbility extends UIAbility {  
  onWindowStageCreate(windowStage: window.WindowStage): void {  
    windowStage.loadContent('pages/Index', (err, data) => {  
      if (err.code) {  
        return;  
      }  
      let windowClass: window.Window = windowStage.getMainWindowSync(); // 获取应用主窗口  
      // 1. 设置窗口全屏  
      // 2. 设置状态栏和导航条隐藏  
      windowClass.setSpecificSystemBarEnabled('status', false)  
        .then(() => {  
          console.info('Succeeded in setting the status bar to be invisible.');  
        })  
        .catch((err: BusinessError) => {  
          console.error(`Failed to set the status bar to be invisible. Code is ${err.code}, message is ${err.message}`);  
        });  
    });  
  }  
}