Struct PrefetchScheduler 

pub struct PrefetchScheduler { /* private fields */ }

Scheduler that tracks which items should be prefetched.

Based on scroll direction and velocity, determines which items to pre-compose before they become visible.

Implementations

impl PrefetchScheduler

pub fn new() -> Self

Creates a new prefetch scheduler.

pub fn update( &mut self, first_visible_index: usize, last_visible_index: usize, total_items: usize, scroll_direction: f32, strategy: &PrefetchStrategy, )

Updates the prefetch queue based on current scroll state.

Arguments

• first_visible_index - Index of the first visible item
• last_visible_index - Index of the last visible item
• total_items - Total number of items in the list
• scroll_direction - Current scroll direction (positive = forward)
• strategy - Prefetch strategy to use

pub fn next_prefetch(&mut self) -> Option<usize>

Returns the next item index to prefetch, if any.

pub fn pending_prefetches(&self) -> &VecDeque<usize>

Returns all pending prefetch indices.

Trait Implementations

impl Debug for PrefetchScheduler

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for PrefetchScheduler

fn default() -> PrefetchScheduler

Returns the “default value” for a type.