自定义弹窗中有弹出键盘的需要，但是弹出之后如何消除键盘和弹窗之间的距离

@CustomDialog 
@Component 
export struct CustomEditDialogWidget { 
  controller?: CustomDialogController; 
  @State textInputString: string = "" 
  tipString: string = "" 
  textInputConString = (info: string) => { 
  } 
  inputType: InputType = InputType.Normal 
 
  build() { 
    Column() { 
      Text(`请输入${this.tipString}`).margin({ top: 20 }) 
      TextInput({ placeholder: `请输入${this.tipString}` }) 
        .width("90%") 
        .backgroundColor(Color.White) 
        .borderWidth(1) 
        .borderColor("#666") 
        .borderRadius(10) 
        .margin({ top: 20 }) 
        .defaultFocus(true) 
        .onChange((value: string) => { 
          this.textInputString = value 
        }) 
        .type(this.inputType) 
 
      Row() { 
        Text("取消") 
          .fontColor("#333") 
          .onClick(() => { 
            this.controller?.close() 
          }).padding({ left: 35, right: 35, top: 15, bottom: 15 }) 
        Text("|").opacity(0.5).height("100%") 
        Text("确定").fontColor("#000").onClick(() => { 
          if (this.textInputString !== "") { 
            this.textInputConString(this.textInputString) 
          } 
          this.controller?.close() 
        }).padding({ left: 35, right: 35, top: 15, bottom: 15 }) 
      } 
      .width("100%") 
      .height(50) 
      .justifyContent(FlexAlign.SpaceAround) 
      .margin({ top: 10 }) 
 
    } 
    .width("90%") 
    .borderRadius(15) 
    .backgroundColor(Color.White) 
    .borderWidth(5) 
    .offset({ x: 0, y: 20 }) //2.2、弹窗位置 
  } 
}