HarmonyOS 鸿蒙Next 弹框不允许自动取消

HarmonyOS 鸿蒙Next 弹框不允许自动取消

CustomDialog如何限制无法自动关闭, 必须用户点击按钮关闭, autoCancel 只能限制用户点击背景不自动关闭, 但是用户物理返回、系统侧滑返回还是会关闭弹框

HUAWEI Mate 60 Pro ALN-AL80 next0.0.65(SP71C00E65R4P9log)
DevEco Studio版本：（5.0.3.700）

代码示例

```javascript
// xxx.ets
[@CustomDialog](/user/CustomDialog)
struct CustomDialogExample {
controller?: CustomDialogController
cancel: () => void = () => {
}
confirm: () => void = () => {
}
build() {
Column() {
Text('可展示在主窗口外的弹窗')
.fontSize(30)
.height(100)
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({
cancel: () => { this.onCancel() },
confirm: () => { this.onAccept() }
}),
cancel: this.existApp,
autoCancel: false,
alignment: DialogAlignment.Center,
offset: { dx: 0, dy: -20 },
gridCount: 4,
showInSubWindow: false,
isModal: true,
customStyle: false,
cornerRadius: 10,
})

// 在自定义组件即将析构销毁时将dialogControlle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')
}

existApp() {
console.info('Click the callback in the blank area')
}

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