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Last run end state

Last run end state API​

This API lets you programmatically determine if the previous app instance ended in a crash. Depending on your use case, querying this API enables you to adjust the behavior or UI of your app after a crash has occurred.

What do we mean by previous app instance?

A cold launch. If the app gets backgrounded/resumed so a new session starts, the value returned won't change:

  1. App crashes
  2. App is relaunched
  3. getLastRunEndState returns "crashed"
  4. App is sent to background
  5. App is resumed, starting a new session
  6. getLastRunEndState still returns "crashed"
  7. App exits cleanly
  8. App is relaunched
  9. getLastRunEndState returns "clean exit"

Integration steps​

To use this feature, follow these steps:

  1. Ensure your app is using the latest version of the Embrace SDK.
  2. Implement the API call after starting the SDK to receive the state of the last run:
// The SDK must be started before checking the last run end state
final didCrashLastRun = await Embrace.instance.getLastRunEndState() == LastRunEndState.crash;

Important notes

  • You can only call the API after the SDK has been started. If you call it before starting the Embrace SDK, you'll get a response of LastRunEndState.invalid.
  • It returns that a crash occurred if the app crashed any time since the app last came to the foreground, including if the app crashed while running in the background.
  • On iOS, this feature only works when the Embrace crash reporter is enabled. It's not compatible with Crashlytics for crash reporting.

Version​

This feature is available in Embrace Flutter SDK version 1.3.0 and later.

Possible values​

/// Used to represent the end state of the last run of the application.

enum LastRunEndState {
  /// The SDK has not been started yet, or it is not configured as the crash handler for the application
  invalid,

  /// The last run resulted in a crash
  crash,

  /// The last run did not result in a crash
  cleanExit
}

Support​

If you have questions or something isn't working as intended, reach out to your Customer Success Manager.