---
order: 1
title: 带浮层卡片
---

点击展开通知卡片，展现多种类型的通知，通常放在导航工具栏。

```ts
import { Component } from '@angular/core';
import { NoticeIconList, NoticeIconSelect, NoticeItem } from '@ohayo/components/notice-icon';
import add from 'date-fns/add';
import formatDistanceToNow from 'date-fns/formatDistanceToNow';
import parse from 'date-fns/parse';
import { NzI18nService } from 'ng-zorro-antd/i18n';
import { NzMessageService } from 'ng-zorro-antd/message';

@Component({
  selector: 'components-notice-icon-popover',
  template: `
    <div
      style="text-align: right; height: 64px; line-height: 64px; box-shadow: rgba(0, 21, 41, 0.12) 0 1px 4px; padding: 0 32px; width: 400px;"
    >
      <notice-icon
        [data]="data"
        [count]="count"
        [loading]="loading"
        (select)="select($event)"
        (clear)="clear($event)"
        (popoverVisibleChange)="loadData()"
      ></notice-icon>
    </div>
  `,
})
export class DemoComponent {
  data: NoticeItem[] = [
    {
      title: '通知',
      list: [],
      emptyText: '你已查看所有通知',
      emptyImage: 'https://gw.alipayobjects.com/zos/rmsportal/wAhyIChODzsoKIOBHcBk.svg',
      clearText: '清空通知',
    },
    {
      title: '消息',
      list: [],
      emptyText: '您已读完所有消息',
      emptyImage: 'https://gw.alipayobjects.com/zos/rmsportal/sAuJeJzSKbUmHfBQRzmZ.svg',
      clearText: '清空消息',
    },
    {
      title: '待办',
      list: [],
      emptyText: '你已完成所有待办',
      emptyImage: 'https://gw.alipayobjects.com/zos/rmsportal/HsIsxMZiWKrNUavQUXqx.svg',
      clearText: '清空待办',
    },
  ];
  count = 5;
  loading = false;

  constructor(private msg: NzMessageService, private nzI18n: NzI18nService) {}

  updateNoticeData(notices: NoticeIconList[]): NoticeItem[] {
    const data = this.data.slice();
    data.forEach(i => (i.list = []));

    notices.forEach(item => {
      const newItem = { ...item };
      if (typeof newItem.datetime === 'string') {
        newItem.datetime = parse(newItem.datetime, 'yyyy-MM-dd', new Date());
      }
      if (newItem.datetime) {
        newItem.datetime = formatDistanceToNow(newItem.datetime as Date, { locale: this.nzI18n.getDateLocale() });
      }
      if (newItem.extra && newItem.status) {
        newItem.color = ({
          todo: undefined,
          processing: 'blue',
          urgent: 'red',
          doing: 'gold',
        } as { [key: string]: string | undefined })[newItem.status];
      }
      data.find(w => w.title === newItem.type)!.list.push(newItem);
    });
    return data;
  }

  loadData(): void {
    if (this.loading) return;
    this.loading = true;
    setTimeout(() => {
      const now = new Date();
      this.data = this.updateNoticeData([
        {
          id: '000000001',
          avatar: 'https://gw.alipayobjects.com/zos/rmsportal/ThXAXghbEsBCCSDihZxY.png',
          title: '你收到了 14 份新周报',
          datetime: add(now, { days: 10 }),
          type: '通知',
        },
        {
          id: '000000002',
          avatar: 'https://gw.alipayobjects.com/zos/rmsportal/OKJXDXrmkNshAMvwtvhu.png',
          title: '你推荐的 曲妮妮 已通过第三轮面试',
          datetime: add(now, { days: -3 }),
          type: '通知',
        },
        {
          id: '000000003',
          avatar: 'https://gw.alipayobjects.com/zos/rmsportal/kISTdvpyTAhtGxpovNWd.png',
          title: '这种模板可以区分多种通知类型',
          datetime: add(now, { months: -3 }),
          read: true,
          type: '通知',
        },
        {
          id: '000000004',
          avatar: 'https://gw.alipayobjects.com/zos/rmsportal/GvqBnKhFgObvnSGkDsje.png',
          title: '左侧图标用于区分不同的类型',
          datetime: add(now, { years: -1 }),
          type: '通知',
        },
        {
          id: '000000005',
          avatar: 'https://gw.alipayobjects.com/zos/rmsportal/ThXAXghbEsBCCSDihZxY.png',
          title: '内容不要超过两行字，超出时自动截断',
          datetime: '2017-08-07',
          type: '通知',
        },
        {
          id: '000000006',
          avatar: 'https://gw.alipayobjects.com/zos/rmsportal/fcHMVNCjPOsbUGdEduuv.jpeg',
          title: '曲丽丽 评论了你',
          description: '描述信息描述信息描述信息',
          datetime: '2017-08-07',
          type: '消息',
        },
        {
          id: '000000007',
          avatar: 'https://gw.alipayobjects.com/zos/rmsportal/fcHMVNCjPOsbUGdEduuv.jpeg',
          title: '朱偏右 回复了你',
          description: '这种模板用于提醒谁与你发生了互动，左侧放『谁』的头像',
          datetime: '2017-08-07',
          type: '消息',
        },
        {
          id: '000000008',
          avatar: 'https://gw.alipayobjects.com/zos/rmsportal/fcHMVNCjPOsbUGdEduuv.jpeg',
          title: '标题',
          description: '这种模板用于提醒谁与你发生了互动，左侧放『谁』的头像',
          datetime: '2017-08-07',
          type: '消息',
        },
        {
          id: '000000009',
          title: '任务名称',
          description: '任务需要在 2017-01-12 20:00 前启动',
          extra: '未开始',
          status: 'todo',
          type: '待办',
        },
        {
          id: '000000010',
          title: '第三方紧急代码变更',
          description: '冠霖提交于 2017-01-06，需在 2017-01-07 前完成代码变更任务',
          extra: '马上到期',
          status: 'urgent',
          type: '待办',
        },
        {
          id: '000000011',
          title: '信息安全考试',
          description: '指派竹尔于 2017-01-09 前完成更新并发布',
          extra: '已耗时 8 天',
          status: 'doing',
          type: '待办',
        },
        {
          id: '000000012',
          title: 'componentsD 版本发布',
          description: '冠霖提交于 2017-01-06，需在 2017-01-07 前完成代码变更任务',
          extra: '进行中',
          status: 'processing',
          type: '待办',
        },
      ]);

      this.loading = false;
    }, 500);
  }

  clear(type: string): void {
    this.msg.success(`清空了 ${type}`);
  }

  select(res: NoticeIconSelect): void {
    this.msg.success(`点击了 ${res.title} 的 ${res.item.title}`);
  }
}
```