How to use a policy for Static Widgets that refreshes daily

Question

Krish Shah OP

Created Jun ’20

Replies 8

Boosts 0

Views 3.5k

Participants 8

I want help in giving a refreshing policy that refreshes once a day.

Answered by Systems Engineer in 615130022

Hi,

To do this, you may pass a TimelineReloadPolicy which explicitly asks to be updated tomorrow. Such as

Code Block swift/* Return timelines and set policy to reload tomorrow */
func timeline(with context: Context, completion: @escaping (Timeline<MyEntryType>) -> ()) {
	...
	let tomorrow = Calendar.current.date(byAdding: .day, value: 1, to: Date())!
	let timeline = Timeline<MyEntryType>(entries: entries, policy: .after(tomorrow))
	...
}

A similar example is described in TimelineProvider's documentation.

Boost

Answer 1

Systems Engineer OP

Apple

Jun ’20

Accepted Answer

Hi,

To do this, you may pass a TimelineReloadPolicy which explicitly asks to be updated tomorrow. Such as

Code Block swift/* Return timelines and set policy to reload tomorrow */
func timeline(with context: Context, completion: @escaping (Timeline<MyEntryType>) -> ()) {
	...
	let tomorrow = Calendar.current.date(byAdding: .day, value: 1, to: Date())!
	let timeline = Timeline<MyEntryType>(entries: entries, policy: .after(tomorrow))
	...
}

A similar example is described in TimelineProvider's documentation.

3

Answer 2

Krish Shah OP

Jun ’20

Thanks A Lot 😃

0

Answer 3

JigaNet OP

Jun ’20

I’ve seen an strange behavior with te refresh policy.

if you put a print(“hello”) in the timeline function, it will print a bunch of hello per second, and the CPU will be over 50%.

I would expect it to print hello tomorrow, but it’s no happening.

maybe it’s a bug?

Does it happens to you?

1

Answer 4

leahl OP

Jun ’20

@JugaNet happens for me as well which is a really big problem as I'm calling an API :/ The Timeline seems to ignore the policy, perhaps i'm missing something? Here's my code at least, is this happening for anyone else?

Code Block swiftfunc timeline(with context: Context, completion: @escaping (Timeline<ChannelEntry>) -> ()) {
	let currentDate = Date()
	let refreshDate = Calendar.current.date(byAdding: .minute, value: 5, to: currentDate)!
	guard let channels = try? JSONDecoder().decode([Channel].self, from: channelsData) else { return }
	update_channel(channel, token) { updatedChannel in
		let entry = ChannelEntry(date: currentDate, channel: channels[0])
		let timeline = Timeline(entries: [entry], policy: .after(refreshDate))
		completion(timeline)
	}
}

1

Answer 5

Frameworks Engineer OP

Apple

Jun ’20

Sorry you ran into this. This is a known issue where if you have the debugger attached to the widget process, the timeline is excessively reloaded. Please keep an eye on future betas where this will get fixed.

4

Answer 6

mezhevikin OP

Aug ’20

Sorry you ran into this. This is a known issue where if you have the debugger attached to the widget process, the timeline is excessively reloaded. Please keep an eye on future betas where this will get fixed.

I use Xcode 12.0 beta 4 and still have the same problem.
Any news?

0

Answer 7

mohen OP

Jan ’21

so we at 14.3 and it's still buggy, how are we suppose to develop like this?
Timeline getting called multiple times, I'm using the policy: .after(/* 1 day */)) and it's not working

0

Answer 8

hopye OP

Oct ’23

im having the same issue now , the getTimeline is being called multiple times, can't figure out what's going on. plain simple entry here:

on my real calls, im calling to an api and and have a background process downloading 3 images into memory, when this happens its calling the api all those times and running the download image process all of those times, and of course it crashes at a point cuz of memory going after 30MB -- Xcode 15 --

    let currentDate = Date()
    let updateDate = Calendar.current.date(byAdding: .hour, value: 5, to: currentDate)!
    print("NEW Current Date:\(currentDate) update Date is: \(updateDate)")
    let entry = SimpleEntry(date: Date(),configuration: ConfigurationIntent(), items: DummyData.data)
    
    let timeline = Timeline(entries: [entry], policy: .after(updateDate))
    
    completion(timeline)

-- DEBUG console , running real device --
NEW Current Date:2023-10-18 13:58:34 +0000 update Date is: 2023-10-18 18:58:34 +0000
NEW Current Date:2023-10-18 13:58:37 +0000 update Date is: 2023-10-18 18:58:37 +0000
NEW Current Date:2023-10-18 13:58:38 +0000 update Date is: 2023-10-18 18:58:38 +0000
NEW Current Date:2023-10-18 13:58:40 +0000 update Date is: 2023-10-18 18:58:40 +0000
NEW Current Date:2023-10-18 13:58:40 +0000 update Date is: 2023-10-18 18:58:40 +0000

0