第一步定义一个dialog：

@CustomDialog
export struct InputDialog {controller: CustomDialogController;@State counter: string = "10";changeInputValue: Function = (value: string) => {}build() {Column() {TextArea({ text: this.counter, placeholder: '请输入测试次数' }).width('90%').height(40).margin({ top: 20 }).borderRadius(0).type(TextAreaType.NUMBER).onChange((value: string) => {this.counter = value})Text().width('100%').borderWidth(0.5).margin({ top: 20 }).borderColor('#838d97')Row() {Text('取消').width('50%').textAlign(TextAlign.Center).onClick(() => {this.controller.close()})Text().height(50).borderWidth(0.5).borderColor('#838d97')Text('确定').width('50%').fontColor('#ff127ad7').textAlign(TextAlign.Center).onClick(() => {this.changeInputValue(this.counter)})}.height(50)}.alignItems(HorizontalAlign.Center | VerticalAlign.Center).width('80%').backgroundColor('#FFFFFF').borderRadius(10)}
}

第二步:初始化声明并接收传参回调

customDialogController: CustomDialogController = new CustomDialogController({builder: InputDialog({changeInputValue: (val: string) => {let num = Number(val);promptAction.showToast({message: "点击了" + num,duration: 1000})this.customDialogController.close()}}),alignment: DialogAlignment.Center,customStyle: true,
});

第三部:调用自定义dialog

this.customDialogController.open()

欢迎同行一起讨论交流！