如何在LazyVerticalGrid中使用jetpack compose分页

implementation 'androidx.paging:paging-compose:1.0.0-alpha12'

class MyPagingSource(private val pageSize: Int) : PagingSource<Int, YourData>() {
    override suspend fun load(params: LoadParams<Int>): LoadResult<Int, YourData> {
        try {
            val page = params.key ?: 1
            val response = yourApiService.getData(page, pageSize)
            val data = response.data
            val prevKey = if (page > 1) page - 1 else null
            val nextKey = if (data.isNotEmpty()) page + 1 else null
            return LoadResult.Page(data, prevKey, nextKey)
        } catch (e: Exception) {
            return LoadResult.Error(e)
        }
    }
}

val pagingDataFlow: Flow<PagingData<YourData>> = Pager(
    config = PagingConfig(pageSize = pageSize),
    pagingSourceFactory = { MyPagingSource(pageSize) }
).flow

val lazyPagingItems = pagingDataFlow.collectAsLazyPagingItems()

LazyVerticalGrid(
    cells = GridCells.Fixed(2),
    contentPadding = PaddingValues(horizontal = 16.dp, vertical = 8.dp)
) {
    items(lazyPagingItems) { item ->
        // 显示你的数据项
    }
}