A guide to sorting through in-app notifications in REACT-NATIVE based on their read status

Question

A guide to sorting through in-app notifications in REACT-NATIVE based on their read status

Incorporating two headings, "Unread" and "Read", into the notification system is my goal. When opened, the Unread Notifications should be displayed beneath the Read notifications. This data is being retrieved from an API.

Each notification contains a key called 'isRead' with a default value of false. I attempted to achieve this using the following code:

   const { mutate: markRead } = useMutation(markNotificationRead, {
    onSuccess: () => {},
    onError: () => {},
  });

  const handleDropDownToggle = () =>
    setIsDropDownOpen(!isDropDownOpen);
    toggleDropdown(item._id);
    !isDropDownOpen ? markRead(item?._id) : false
  };

typescript react-native

Answer 1

Answer №1

Receive notifications and organize them accordingly

  const notifications = [
  {
    id: 1,
    title: 'New message received',
    description: 'Message #21034',
    read: false,
    date: '2020-09-12T07:30:00.000Z',
    type: 'message',
  },
  {
    id: 2,
    title: 'New follower',
    description: 'John Doe',
    read: false,
    date: '2020-09-12T07:30:00.000Z',
    type: 'follower',
  },
  {
    id: 3,
    title: 'New like',
    description: 'Post #12345',
    read: true,
    date: '2020-09-12T07:30:00.000Z',
    type: 'like',
  },

]

// Organize the notifications based on their read status (unread first)
const sortedNotifications = notifications.sort((a, b) => {
  return a.read === b.read ? 0 : a.read ? 1 : -1;
}
);

You can then display the sorted notifications using a flatlist component.

Answer 2

Receive notifications and organize them accordingly

  const notifications = [
  {
    id: 1,
    title: 'New message received',
    description: 'Message #21034',
    read: false,
    date: '2020-09-12T07:30:00.000Z',
    type: 'message',
  },
  {
    id: 2,
    title: 'New follower',
    description: 'John Doe',
    read: false,
    date: '2020-09-12T07:30:00.000Z',
    type: 'follower',
  },
  {
    id: 3,
    title: 'New like',
    description: 'Post #12345',
    read: true,
    date: '2020-09-12T07:30:00.000Z',
    type: 'like',
  },

]

// Organize the notifications based on their read status (unread first)
const sortedNotifications = notifications.sort((a, b) => {
  return a.read === b.read ? 0 : a.read ? 1 : -1;
}
);

You can then display the sorted notifications using a flatlist component.

A guide to sorting through in-app notifications in REACT-NATIVE based on their read status

Answer №1

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