---
title: "setTaskCompleted(restoredDefaultState:estimatedSnapshotExpiration:userInfo:)"
framework: watchkit
role: symbol
role_heading: Instance Method
path: "watchkit/wksnapshotrefreshbackgroundtask/settaskcompleted(restoreddefaultstate:estimatedsnapshotexpiration:userinfo:)"
---

# setTaskCompleted(restoredDefaultState:estimatedSnapshotExpiration:userInfo:)

Marks the task as complete.

## Declaration

```swift
func setTaskCompleted(restoredDefaultState: Bool, estimatedSnapshotExpiration: Date?, userInfo: (any NSSecureCoding & NSObjectProtocol)?)
```

## Parameters

- `restoredDefaultState`: Pass doc://com.apple.documentation/documentation/Swift/true if your app has navigated back to its default launch scene.
- `estimatedSnapshotExpiration`: The preferred date and time for the next background snapshot refresh task. Use doc://com.apple.documentation/documentation/Foundation/NSDate/distantFuture if you do not want to schedule the next refresh.
- `userInfo`: Custom data to be associated with the next background snapshot refresh task. This value is assigned to the next doc://com.apple.watchkit/documentation/WatchKit/WKSnapshotRefreshBackgroundTask object’s doc://com.apple.watchkit/documentation/WatchKit/WKRefreshBackgroundTask/userInfo property. Pass nil if you don’t want to associate any data with the next task.

## Discussion

Discussion Call this method as soon as your app finishes updating its user interface. The system provides your extension with a limited amount of time (on the order of seconds) to finish the background snapshot refresh task. If you do not call setTaskCompleted(restoredDefaultState:estimatedSnapshotExpiration:userInfo:) on the task, the system uses all available time, wasting battery power. The system then suspends the extension as soon as the allotted time has expired. The system automatically takes a snapshot of your app’s user interface as soon as this task is complete. The system also suspends the extension as soon as all background tasks are complete.