callstack / callstack/react-native-pager-view

PagerView renders all the pages and not considering the value provided to offscreenPageLimit

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#878 5 comments 1 reaction 1 assignee Claimed by @MrRefactor View on GitHub
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TypeScript
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Description

## Environment

node v18.19.1
react v18.2.0
react-native v0.73.4
react-native-pager-view v^6.3.0

## Description

I use PagerView to achieve ViewPager equivalent in Android. Even after I provide value to the prop `offscreenPageLimit` all the pages are getting rendered on UI. This makes multiple API calls from all the screens, which makes the application to use more memory as I do manage files by downloading them and also make the application slow. In Android PagerView is dead slow, where it takes at least 5 to 10 seconds to respond. Due to confidentiality I won't be able to share the screenshots or screen recordings. But I would be able to share the similar code to reproduce this bug.

## Reproducible Demo

**Code used:**
```ts
{
const position = e.nativeEvent.position;
setCurrentPosition(position);
}}
>
{filteredList.map((model, key) => (

{renderTabScreen(model)}

))}

```

In code you may replace the following as per your wish, `renderTabScreen(mode)` returns a JSX element. The main idea is that number of pages that's initially loaded into memory to display should be equal to the value provided to the `offscreenPageLimit` prop, but on observing all the `n-pages` are getting rendered.

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