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Add window/application lifecycle delegation for desktop shells #30735
Description
Example use case: A document-based Flutter application should be able to prevent a window from being closed (e.g., with an alert) if the document corresponding to that window is unsaved.
At the very least plugins need to be able to register for application and window lifecycle events (as they can for application lifecycle on iOS), but we may want to consider making system channels for the most common cases.
Activity
dschuyler commentedon Oct 1, 2019
Would this use the
AppLifecycleStateandState<LifecycleWatcher>or would it be some other mechanism (just asking to understand better)?stuartmorgan-g commentedon Oct 1, 2019
The specific case that this was originally filed for was delegation, not just observation, so at least some new mechanism would be needed. Supporting the existing lifecycle structure might be part of it though.
stuartmorgan-g commentedon Jan 23, 2020
Capturing from a Discord discussion about autoupdate on Windows:
Autoupdate is something that we want to facilitate building plugins for, so we should make sure there's a lifecycle hook that's before the window is displayed.
hpoul commentedon Aug 12, 2020
Implementation of
AppLifecycleStatewould be great. My use-case: auto-close/lock of open files when the app is in the background/idle for some time. Would be the easiest way to detect when the user hasn't interacted with the app for some time. (ie.inactivevsresumed)stuartmorgan-g commentedon Aug 12, 2020
"Idle" isn't a clear, OS-defined application state, and would not be part of this. If you want to do something based on the user not interacting with the app for a while, that is something you would need to implement yourself based on what "idle" means to your use case.
16 remaining items
[macOS] Remove FlutterApplication class (#40939)
[macOS] Remigrate principal class to NSApplication (flutter#124173)
Adding app lifecycle notification for macOS and Linux, add `hidden` s…
Add `AppLifecycleListener`, with support for application exit handling (
gspencergoog commentedon Oct 19, 2023
This has been completed. See AppLifecycleListener and the related classes.
github-actions commentedon Nov 2, 2023
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