HarmonyOS鸿蒙Next中CustomDialogController弹出时底部安全区颜色为白色，怎么设置能够去掉或者覆盖其他颜色

您可以设置isModal为false,参考链接：https://developer.huawei.com/consumer/cn/doc/harmonyos-references-V5/ts-methods-custom-dialog-box-V5#customdialogcontrolleroptions%E5%AF%B9%E8%B1%A1%E8%AF%B4%E6%98%8E

也可以参考如下代码：

@CustomDialog

struct CustomDialogExample {

  @Link textValue: string

  @Link inputValue: string

  dialogControllerTwo: CustomDialogController | null = new CustomDialogController({
    builder: CustomDialogExample,
    customStyle:true
  })

  controller?: CustomDialogController

  cancel: () => void = () => {
  }

  confirm: () => void = () => {
  }

  build() {
    Column() {
      TextInput({ placeholder: '', text: this.textValue }).height(60).width('90%')
        .onChange((value: string) => {
          this.textValue = value
        })
      Flex({ justifyContent: FlexAlign.SpaceAround }) {
        Button('cancel')
          .onClick(() => {
            if (this.controller != undefined) {
              this.controller.close()
              this.cancel()
            }
          }).backgroundColor(0xffffff).fontColor(Color.Black)
        Button('confirm')
          .onClick(() => {
            if (this.controller != undefined) {
              this.inputValue = this.textValue
              this.controller.close()
              this.confirm()
            }
          }).backgroundColor(0xffffff).fontColor(Color.Red)
      }.margin({ bottom: 10 })
    }.borderRadius(10)
  }
}

@Entry
@Component
struct CustomDialogUser {

  @State textValue: string = ''
  @State inputValue: string = 'click me'

  dialogController: CustomDialogController | null = new CustomDialogController({
    builder: CustomDialogExample({
      cancel: () => { this.onCancel() },
      confirm: () => { this.onAccept() },
      textValue: $textValue,
      inputValue: $inputValue,
    }),
    autoCancel: true,
    alignment: DialogAlignment.Bottom,
    offset: { dx: 0, dy: -180 },
    customStyle: false,
    cornerRadius: 10,
    backgroundColor:'#ffaa50e9',
    isModal:false
  })

  aboutToDisappear() {
    this.dialogController = null
  }

  onCancel() {
  }

  onAccept() {
  }

  build() {
    Column() {
      Button(this.inputValue)
        .onClick(() => {
          if (this.dialogController != null) {
            this.dialogController.open()
          }
        }).backgroundColor(0x317aff)
    }.width('100%').margin({ top: 5 })
  }
}