RequireUserConfirmationAttribute.cs

  [Serializable]
    public class RequireUserConfirmationAttribute : MethodInterceptionAspect
    {
        private string message;
        private string cancelText;
        private string okText;
        private string title;

        public RequireUserConfirmationAttribute(string title,string message,string okText, string cancelText)
        {
            this.message = message;
            this.cancelText = cancelText;
            this.okText = okText;
            this.title = title;
        }

        public override void OnInvoke(MethodInterceptionArgs args)
        {
            UserDialogs.Instance.Confirm(new ConfirmConfig()
            {
                Message = this.message,
                CancelText = this.cancelText,
                OkText = this.okText,
                Title = this.title,
               
                OnAction = b =>
                {
                    if (b)
                        args.Proceed();
                }
            });
        }

        public override async Task OnInvokeAsync(MethodInterceptionArgs args)
        {
           
           var result=await UserDialogs.Instance.ConfirmAsync(new ConfirmConfig()
            {
                Message = this.message,
                CancelText = this.cancelText,
                OkText = this.okText,
                Title = this.title,
               
            });
            if (result)
               await args.ProceedAsync();
          

        }
    }