monitorArea method

void monitorArea(GeographicArea area, { String id = '', })

Adds a geographic area to monitor for boundary crossing events.

The AlarmListener.registerOnBoundaryCrossed callback is triggered when the device enters or exits the monitored area. Multiple areas can be monitored simultaneously.

Parameters

• area: The GeographicArea to monitor (rectangle, circle or polygon).
• id: Optional unique identifier for the area. Used to identify which area was crossed in callbacks.

See also:

• AlarmListener.registerOnBoundaryCrossed - Register for boundary crossing callbacks.
• unmonitorArea - Remove a geographic area from monitoring.

Implementation

void monitorArea(final GeographicArea area, {final String id = ''}) {
  objectMethod(
    _pointerId,
    'AlarmService',
    'monitorArea',
    args: <String, dynamic>{'area': area, 'id': id},
  );
}