HarmonyOS 鸿蒙Next CustomDialog自定义弹窗不可以设置透明背景色？

设置 customStyle: true,
参考文档：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

[@CustomDialog](/user/CustomDialog)
struct CustomDialogExampleTwo {
  controllerTwo?: CustomDialogController
  build() {
    Column() {
      Text('我是第二个弹窗')
        .fontSize(30)
        .height(100)
      Button('点我关闭第二个弹窗')
        .onClick(() => {
          if (this.controllerTwo != undefined) {
            this.controllerTwo.close()
          }
        })
        .margin(20)
    }
  }
}
[@CustomDialog](/user/CustomDialog)
[@Component](/user/Component)
struct CustomDialogExample {
  [@Link](/user/Link) textValue: string
  [@Link](/user/Link) inputValue: string
  dialogControllerTwo: CustomDialogController | null = new CustomDialogController({
    builder: CustomDialogExampleTwo(),
    alignment: DialogAlignment.Bottom,
    customStyle: true,
    onWillDismiss:(dismissDialogAction: DismissDialogAction)=> {
      console.info("reason=" + JSON.stringify(dismissDialogAction.reason))
      console.log("dialog onWillDismiss")
      if (dismissDialogAction.reason == DismissReason.PRESS_BACK) {
        dismissDialogAction.dismiss()
      }
      if (dismissDialogAction.reason == DismissReason.TOUCH_OUTSIDE) {
        dismissDialogAction.dismiss()
      }
    },
    offset: { dx: 0, dy: -25 } })
  controller?: CustomDialogController
  // 若尝试在CustomDialog中传入多个其他的Controller，以实现在CustomDialog中打开另一个或另一些CustomDialog，那么此处需要将指向自己的controller放在所有controller的后面
  cancel: () => void = () => {
  }
  confirm: () => void = () => {
  }
build() {
Column() {
Text(‘Change text’).fontSize(20).margin({ top: 10, bottom: 10 })
TextInput({ placeholder: ‘’, text: this.textValue }).height(60).width(‘90%’)
.onChange((value: string) => {
this.textValue = value
})
Text(‘Whether to change a text?’).fontSize(16).margin({ bottom: 10 })
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 })
  Button(<span class="hljs-string">'点我打开第二个弹窗'</span>)
    .onClick(() =&gt; {
      <span class="hljs-keyword">if</span> (<span class="hljs-keyword">this</span>.dialogControllerTwo != <span class="hljs-literal">null</span>) {
        <span class="hljs-keyword">this</span>.dialogControllerTwo.open()
      }
    })
    .margin(<span class="hljs-number">20</span>)
}.borderRadius(<span class="hljs-number">10</span>)
<span class="hljs-comment">// 如果需要使用border属性或cornerRadius属性，请和borderRadius属性一起使用。</span>
}
}
@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
}),
cancel: this.exitApp,
autoCancel: true,
onWillDismiss:(dismissDialogAction: DismissDialogAction)=> {
console.info(“reason=” + JSON.stringify(dismissDialogAction.reason))
console.log(“dialog onWillDismiss”)
if (dismissDialogAction.reason == DismissReason.PRESS_BACK) {
dismissDialogAction.dismiss()
}
if (dismissDialogAction.reason == DismissReason.TOUCH_OUTSIDE) {
dismissDialogAction.dismiss()
}
},
alignment: DialogAlignment.Bottom,
offset: { dx: 0, dy: -20 },
gridCount: 4,
customStyle: true,
cornerRadius: 10,
})
// 在自定义组件即将析构销毁时将dialogController置空
aboutToDisappear() {
this.dialogController = null // 将dialogController置空
}
onCancel() {
console.info(‘Callback when the first button is clicked’)
}
onAccept() {
console.info(‘Callback when the second button is clicked’)
}
exitApp() {
console.info(‘Click the callback in the blank area’)
}
build() {
Column() {
Button(this.inputValue)
.onClick(() => {
if (this.dialogController != null) {
this.dialogController.open()
}
}).backgroundColor(0x317aff)
}.width(‘100%’).margin({ top: 5 })
}
}

效果图