stop static method
Stops any currently playing haptic pattern.
On iOS, this stops the active CHHapticAdvancedPatternPlayer.
On Android, this cancels the Vibrator.
atTime - (iOS only) The time, in seconds, to schedule the stop. Use 0.0 for immediate.
Implementation
static Future<void> stop({double atTime = 0.0}) async {
  await _channel.invokeMethod('stop', {'atTime': atTime});
}