HarmonyOS 鸿蒙Next键盘遮挡问题解决方案：文本输入框如何自动抬起避让弹出的键盘

请参考：

@Entry 
@Component 
struct Page_3058 { 
  @State message: string = 'Hello World'; 
  dialogController: CustomDialogController = new CustomDialogController({ 
    builder: CustomDialogExample(), 
  }) 
 
  build() { 
    Row() { 
      Column() { 
        Text(this.message) 
          .fontSize(50) 
          .fontWeight(FontWeight.Bold) 
          .onClick(() => { 
            this.dialogController.open() 
          }) 
      } 
      .width('100%') 
    } 
    .height('100%') 
  } 
} 
 
@CustomDialog 
struct CustomDialogExample { 
  controller: CustomDialogController = new CustomDialogController({ 
    builder: CustomDialogExample({}), 
  }) 
 
  build() { 
    Column() { 
      TextInput({})
        .fontSize(20) 
        .margin({ top: 10, bottom: 10 }) 
        .expandSafeArea([SafeAreaType.KEYBOARD, SafeAreaType.SYSTEM])
        .borderWidth(0.5) 
        .borderRadius(4)
        .height(40) 
        .defaultFocus(true) 
        .margin({ top: 30, left: 16, right: 16 }) 
    } 
  }