如何在键盘弹出时，让内容上移，而不是整个窗口上移

import { BusinessError } from '@kit.BasicServicesKit'; 
import { window } from '@kit.ArkUI'; 
// ... 
let isLayoutFullScreen = true; 
try { 
  let windowClass: window.Window = window.findWindow("test"); 
  let promise = windowClass.setWindowLayoutFullScreen(isLayoutFullScreen); 
  promise.then(() => { 
    console.info('Succeeded in setting the window layout to full-screen mode.'); 
  }).catch((err: BusinessError) => { 
    console.error('Failed to set the window layout to full-screen mode. Cause:' + JSON.stringify(err)); 
  }); 
} catch (exception) { 
  console.error('Failed to set the window layout to full-screen mode. Cause:' + JSON.stringify(exception)); 
}