Type Alias zng_app::timer::TimerVar

pub type TimerVar = ReadOnlyArcVar<Timer>;

An interval timer.

This is a variable of type Timer, it will update every time the timer elapses.

Drop all clones of this variable to stop the timer, you can also control the timer with methods in the Timer value even though the variable is read-only.

let timer: TimerVar = TIMERS.interval(1.secs(), false);

text = timer.map(|d| match 20 - d.count() {
    0 => {
        d.stop();
        formatx!("Done!")
    },
    1 => formatx!("1 second left"),
    s => formatx!("{s} seconds left")
});

In the example above the variable updates every second and stops after 20 seconds have elapsed. The variable is mapped to a text and controls the timer from inside the mapping closure. See Var<T> for other things you can do with variables, including .await for updates. Also see Timer for more timer control methods.

Aliased Type

struct TimerVar(/* private fields */);