queryActivitySummaryUpdates static method
StreamSubscription
queryActivitySummaryUpdates(
- Predicate predicate, {
- required dynamic onUpdate(),
Will fetch the actual values as a first data snapshot
and notify about data changes.
Will call onUpdate
callback, if activity summaries
have been changed.
inside HealthKit
Provide the predicate
to set the date interval.
Implementation
static StreamSubscription<dynamic> queryActivitySummaryUpdates(
Predicate predicate,
{required Function(List<ActivitySummary>) onUpdate}) {
final arguments = predicate.map;
return _queryActivitySummaryChannel
.receiveBroadcastStream(arguments)
.listen((event) {
final List<dynamic> list = jsonDecode(event);
final activitySummaries = <ActivitySummary>[];
for (final Map<String, dynamic> map in list) {
final activitySummary = ActivitySummary.fromJson(map);
activitySummaries.add(activitySummary);
}
onUpdate(activitySummaries);
});
}