HarmonyOS 鸿蒙Next不支持function.bind

arkts-no-func-bind当前应该是warn级别告警，不是error级别，还是可以用的。

只是你这里应该是想弹窗调用父组件的函数，我这边试，this.startGame为了调用bind，把startGam的()去掉了，导致弹框调用startGame不生效。去掉bind(this)，直接传this.startGame()是ok的。

示例代码：

// xxx.ets
[@CustomDialog](/user/CustomDialog)
struct CustomDialogExample {
 controller?: CustomDialogController
 add: () => void = () => {
 }

 build() {
   Column() {
     Button('加1')
       .onClick(() => {
         this.add()
       })
     Button('点我关闭弹窗')
       .onClick(() => {
         if (this.controller != undefined) {
           this.controller.close()
         }
       })
       .margin(20)
   }
 }
}

[@Entry](/user/Entry)
[@Component](/user/Component)
struct CustomDialogUser {
 dialogController: CustomDialogController | null = new CustomDialogController({
   builder: CustomDialogExample({
     add: () => {
       this.add()
     }
   }),
   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.Center,
   offset: { dx: 0, dy: -20 },
   customStyle: false,
   cornerRadius: 20,
   width: 300,
   height: 200,
   borderWidth: 1,
   borderStyle: BorderStyle.Dashed, //使用borderStyle属性，需要和borderWidth属性一起使用
   borderColor: Color.Blue, //使用borderColor属性，需要和borderWidth属性一起使用
   backgroundColor: Color.White,
   shadow: ({
     radius: 20,
     color: Color.Grey,
     offsetX: 50,
     offsetY: 0
   }),
 })

 // 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
 }

 add() {
   this.num = this.num + 1
 }

 [@State](/user/State) num: number = 1

 build() {
   Column() {
     Button('click me')
       .onClick(() => {
         if (this.dialogController != null) {
           this.dialogController.open()
         }
       }).backgroundColor(0x317aff)

     Text(this.num.toString())
   }.width('100%').margin({ top: 5 })
 }
}