Summary of issues encountered with the Screen Time interface

After repeated testing, on the iOS 18.5 version, the listening event will be triggered even if the threshold is not reached.

private func buildEvents(with tokens: Set<ApplicationToken>, prefix: String) -> [DeviceActivityEvent.Name: DeviceActivityEvent] {
    var events: [DeviceActivityEvent.Name: DeviceActivityEvent] = [:]
    for index in 0..<30 {
        // Set time threshold: first 29 events every 2 minutes, last event in 1 hour
        let threshold = (index == 29)
        ? DateComponents(hour: 1)
        : DateComponents(minute: (index + 1) * 2)
        let name = DeviceActivityEvent.Name("\(prefix)|\(index)")
        if #available(iOS 17.4, *) {
            events[name] = DeviceActivityEvent(
                applications: tokens,
                threshold: threshold,
                includesPastActivity: false
            )
        }else {
            events[name] = DeviceActivityEvent(
                applications: tokens,
                threshold: threshold
            )
        }
    }
    return events
}

This is my DeviceActivityEvent generation code. I hope the app is used to remind me every two minutes.

I found that the same event was triggered twice.

I experimented with other apps and my own app and found that the eventDidReachThreshold method is automatically triggered under the iOS 18.5 system version.