Function slint::platform::duration_until_next_timer_update

pub fn duration_until_next_timer_update() -> Option<Duration>

Returns the duration before the next timer is expected to be activated. This is the largest amount of time that you can wait before calling update_timers_and_animations().

Call this in your own event loop implementation to know how long the current thread can go to sleep. Note that this does not take currently activate animations into account. Only go to sleep if Window::has_active_animations() returns false.