vibrate
The vibration pattern to use when alerting the user.
var vibrate: [Int]
Defaults to an empty array, indicating the notification should follow subscriber preferences.
The sequence of numbers represents the amount of time in milliseconds to alternatively vibrate and pause. For instance, [200]
will vibrate for 0.2s, while [200, 100, 200]
will vibrate for 0.2s, pause for 0.1s, and vibrate again for 0.2s.