how 'wait' be wrote on Monkey C???

You can't busy-wait in CIQ / Monkey C (you'll likely trip the watchdog timer, and it would be a bad user experience anyway), and there's no blocking wait() function like C, but you can set a timer to do something in the future.

e.g. in the source file that has your view class:

import Toybox.Timer;

// ...
// in your view class:


  var timer;

  function initialize() {
    timer = new Timer.Timer();
  }

  ...

  function scheduleTimer() {
    timer.start(method(:onTimerTimeout), 1000 /* milliseconds */, false /* don't repeat */);
  }

  function onTimerTimeout() {
    // do stuff when timer expires
  }
// view class continues ...


Note that there's a limit to the number of timers an app can create. I think on most (or all) devices the limit is 3. (The documentation says the "default" limit is 3 -- not really sure what "default" is supposed to mean in this case.)

If you want to block the UI in a friendly way for 1 second, you can display a ProgressBar (with busy indicator) and use a timer to dismiss it.

thx