The object that registers you to receive metrics, creates logs for custom metrics, and gives access to past reports.
- iOS 13.0+
- Mac Catalyst 13.0+
MXMetric shared object manages your subscription for receiving on-device daily metrics.
To receive metrics, call
add with an object supporting the
did method of
MXMetric. The system then sends a report as an array of
MXMetric objects at most once per day. The array contains the metrics from the past 24 hours and any previously undelivered daily reports.