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Trait components::widgets::SliverChildDelegate

source · [−]
pub trait SliverChildDelegate {
    fn build(
        &self, 
        context: Option<BuildContext>, 
        index: usize
    ) -> Option<Box<dyn Widget>> { ... }
    fn did_finish_layout(&self, first_index: usize, last_index: usize) { ... }
    fn estimate_max_scroll_offset(
        &self, 
        first_index: usize, 
        last_index: usize, 
        leading_scroll_offset: f32, 
        trailing_scroll_offset: f32
    ) -> Option<f32> { ... }
    fn find_index_by_key(&self, key: Key) -> Option<usize> { ... }
    fn should_rebuild(&self, old_delegate: Box<dyn SliverChildDelegate>) -> bool { ... }
}

Provided Methods

Implementors