How to use matrix-sdk-ui , To fetch room list service

[PrathivDev]

      let room_list_service = RoomListService::new(client.clone()).await?;

      let all_rooms = room_list_service.all_rooms().await?;
      let (entries, _) = all_rooms.entries_with_dynamic_adapters(5);
      pin_mut!(entries);
      let mut rooms = Vec::new();

        while let Some(diff) = entries.next().await {
            for entry in diff {
                match entry {
                    VectorDiff::Append { values } => {
                        rooms.extend(values);
                    }
                    _ => {}
                }
            }
            println!("{:?}", rooms);
        }
        sync_client(&client).await;

but I don't know what mistakes I have been doing and it's unclear how to use the RoomListService ,

Can someone help how to structure and use Matrix-sdk-UI , whether the API will give info to only show the room list to use and with the room_id we have to listen to timeline and update the conversation .

entries.next().await() returning vec<VectorDiff<Room>> does I need to store this and use it for every individual room conversation ?

for 1st step how to get the Information from this vec<VectorDiff>

Can we we this as discussion thread.

[Hywan]

Hello,

You've a bunch of question, and I'm not sure I understand everything. Let's start with RoomList::entries_with_dynamic_adapters. The documentation says:

The returned stream will only start yielding diffs once a filter is set through the returned RoomListDynamicEntriesController. For every call to RoomListDynamicEntriesController::set_filter, the stream will yield a VectorDiff::Reset followed by any updates of the room list under that filter (until the next reset).

So, you've to do something like:

let (entries, controller) = all_rooms.entries_with_dynamic_adapters(5);
controller.set_filter(…);

You can pick a filter from matrix_sdk_ui::room_list_service::filters.

does I need to store this and use it for every individual room conversation ?

Well, I don't know, it depends what you're trying to do.

[PrathivDev]

thanks for info and it's work fine now but does this stream yield automatically when new rooms are added (changes related to rooms) or only will yield when it's called with set_filter

add when new set_filter is called new stream is emitted and it's stay's ideal after that, does it wait for future changes related to filter is set and yield it .

[Hywan]

thanks for info and it's work fine now but does this stream yield automatically when new rooms are added (changes related to rooms) or only will yield when it's called with set_filter

Once a filter is set, the stream gives you continuously updates for the room in the list, be updates of the room info, new rooms etc.

add when new set_filter is called new stream is emitted and it's stay's ideal after that, does it wait for future changes related to filter is set and yield it .

It waits for updates. You've nothing to do rather than waiting for updates.