"Feature Request: Infinite Scroll Up Support for bubble.list"

[iaminnasr]

需求动机

Description

It would be a great enhancement to add infinite scroll upwards support for bubble.list. This is especially useful for chat applications or similar use cases where users scroll up to load older content.

Currently, bubble.list supports regular infinite scrolling downwards, but there is no built-in support for upwards scrolling.

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Use Case

For chat-based applications or timelines, when users reach the top of the scroll container, they expect older data to load seamlessly. Implementing infinite scroll upwards will greatly improve user experience.

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Expected Behavior

1. When the user scrolls to the top of the bubble.list:

   • A callback function like onScrollUp is triggered.
   • New data is fetched and prepended to the list without shifting the scroll position abruptly.

2. Maintain the current scroll position to avoid user confusion.

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提议的 API 是什么样的？

Proposed API

Add a prop like:

<bubble.list
onLoadMore={onLoadMore}
  hasMoreUp={true} // Whether there is more data to load upwards
  loadingUp={isLoading} // Show loading indicator
/>

[YumoImer]

You can use react-infinite-scroll-component with Bubble.List. react-infinite-scroll-component performs excellently in this regard. I think it would be helpful to add a demo example to assist developers.

https://github.com/ankeetmaini/react-infinite-scroll-component

[iaminnasr]

Hi
Thank you so much for your prompt response and the helpful suggestion! I appreciate your recommendation regarding react-infinite-scroll-component and Bubble.List.

If possible, could you kindly provide a demo example that integrates both virtual scrolling and infinite scroll? I believe it would greatly assist developers who aim to implement high-performance lists.

Thanks again for your support and contribution!

Best regards