struct · iOS 15.0+ · SDK 27.1
struct PeriodicTimelineScheduleA schedule for updating a timeline view at regular intervals. You can also use ``TimelineSchedule/periodic(from:by:)`` to construct this schedule.
static init(startDate: globalThis.Date, interval: number): PeriodicTimelineScheduleinit(from startDate: Date, by interval: TimeInterval)Creates a periodic update schedule. Use the ``PeriodicTimelineSchedule/entries(from:mode:)`` method to get the sequence of dates. - Parameters: - startDate: The date on which to start the sequence. - interval: The time interval between successive sequence entries.
entries(startDate: globalThis.Date, mode: TimelineScheduleMode): PeriodicTimelineSchedule_Entriesfunc entries(from startDate: Date, mode: TimelineScheduleMode) -> PeriodicTimelineSchedule.EntriesProvides a sequence of periodic dates starting from around a given date. A ``TimelineView`` that you create with a schedule calls this method to ask the schedule when to update its content. The method returns a sequence of equally spaced dates in increasing order that represent points in time when the timeline view should update. The schedule defines its periodicity and phase aligment based on the parameters you pass to its ``init(from:by:)`` initializer. For example, for a `startDate` and `interval` of `10:09:30` and `60` seconds, the schedule prepares to issue dates half past each minute. The `startDate` that you pass to the `entries(from:mode:)` method then dictates the first date of the sequence as the beginning of the interval that the start date overlaps. Continuing the example above, a start date of `10:34:45` causes the first sequence entry to be `10:34:30`, because that's the start of the interval in which the start date appears.
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