calendar_view_demo/lib/notification_demo/notification_controller.dart

import 'package:calendar_view/utils/event_type.dart';
import 'package:get/get.dart';
import 'dart:math';

class NotificationController extends GetxController {
  NotificationController();

  FEventHandler<SystemNotification> onReceiveNotification =
      FEventHandler<SystemNotification>();

  void handleReceiveNotification(SystemNotification notification) {
    onReceiveNotification.emit(this, notification);
  }

  /// 取0-5的随机整数
  int getRandomNumber() {
    return Random().nextInt(5);
  }

  /// 各种假消息列表
  List<SystemNotification> mockList = [
    SystemNotification(
      title: '系统通知',
      infoTitle: '会诊将在15分钟后开始，请及时参与！',
      infoItems: [
        NotificationInfoItem(
          title: '姓名',
          content: '陈圆润',
        ),
        NotificationInfoItem(
          title: '会诊时间',
          content: '2021-11-11 11:11:11',
        ),
        NotificationInfoItem(
          title: '会诊专家',
          content: 'Albert Einstein',
        ),
      ],
      type: NotificationType.notification,
    ),
    SystemNotification(
      title: '系统通知',
      infoTitle: '路人甲拒绝参加你的会诊！',
      infoItems: [
        NotificationInfoItem(
          title: '姓名',
          content: '陈圆润',
        ),
        NotificationInfoItem(
          title: '会诊时间',
          content: '2021-11-11 11:11:11',
        ),
        NotificationInfoItem(
          title: '拒绝原因',
          content: '阳了',
        ),
      ],
      type: NotificationType.error,
    ),
    SystemNotification(
      title: '系统通知',
      infoTitle: '路人甲拒绝了您的预约申请！',
      infoItems: [
        NotificationInfoItem(
          title: '拒绝原因',
          content: '没核酸检测报告',
        ),
      ],
      type: NotificationType.error,
    ),
    SystemNotification(
      title: '系统通知',
      infoTitle: '路人甲同意了您的预约申请！！',
      infoItems: [
        NotificationInfoItem(
          title: '姓名',
          content: '陈圆润',
        ),
        NotificationInfoItem(
          title: '会诊时间',
          content: '2021-11-11 11:11:11',
        ),
        NotificationInfoItem(
          title: '会诊专家',
          content: 'Albert Einstein',
        ),
      ],
      type: NotificationType.success,
    ),
    SystemNotification(
      title: '系统通知',
      infoTitle: '路人甲同意参加你的会诊！',
      infoItems: [
        NotificationInfoItem(
          title: '姓名',
          content: '陈圆润',
        ),
        NotificationInfoItem(
          title: '会诊时间',
          content: '2021-11-11 11:11:11',
        ),
      ],
      type: NotificationType.success,
    ),
    SystemNotification(
      title: '系统通知',
      infoTitle: '路人甲向您发来了会诊申请！',
      infoItems: [
        NotificationInfoItem(
          title: '姓名',
          content: '陈圆润',
        ),
        NotificationInfoItem(
          title: '会诊时间',
          content: '2021-11-11 11:11:11',
        ),
        NotificationInfoItem(
          title: '申请医院',
          content: '潘达医院',
        ),
      ],
      type: NotificationType.warning,
    ),
  ];

  /// 构造一个假消息
  void sendMockNotification() {
    handleReceiveNotification(mockList[getRandomNumber()]);
  }

  @override
  void onInit() {
    super.onInit();

    /// 注册通知接收器
  }
}

///  系统通知
class SystemNotification {
  SystemNotification({
    required this.title,
    required this.infoTitle,
    required this.infoItems,
    required this.type,
    this.callback,
    this.callbackButtonText,
  });

  final String title;
  final String infoTitle;
  final List<NotificationInfoItem> infoItems;
  final NotificationType type;
  final Function? callback;
  final String? callbackButtonText;
}

/// 通知信息字段
class NotificationInfoItem {
  NotificationInfoItem({
    required this.title,
    required this.content,
  });

  final String title;
  final String content;
}

/// 通知类型
enum NotificationType {
  /// 通知
  notification,

  /// 警告
  warning,

  /// 错误
  error,

  /// 成功
  success,
}