Ecosyste.ms: Awesome
An open API service indexing awesome lists of open source software.
https://github.com/rudifa/ios-testsegues
An UIKit demo project, investigates the forward- and unwind-segue behaviors.
https://github.com/rudifa/ios-testsegues
Last synced: 24 days ago
JSON representation
An UIKit demo project, investigates the forward- and unwind-segue behaviors.
- Host: GitHub
- URL: https://github.com/rudifa/ios-testsegues
- Owner: rudifa
- Created: 2021-05-29T21:01:55.000Z (over 3 years ago)
- Default Branch: main
- Last Pushed: 2023-01-08T10:27:20.000Z (almost 2 years ago)
- Last Synced: 2024-10-07T01:41:33.708Z (about 1 month ago)
- Language: Swift
- Homepage:
- Size: 26.4 KB
- Stars: 0
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# TestSegues
Investigates forward and unwind segues.
```
RedViewController --> GreenViewController --> BlueViewController |
|<---------------------------------------------------------------|
```
```
---- 2021-05-29 22:19:46.225597 RedViewController.viewDidLoad()
---- 2021-05-29 22:19:46.235687 RedViewController.viewWillAppear(_:)
---- 2021-05-29 22:19:46.526425 RedViewController.viewDidAppear(_:)
---- RedViewController.toGreenButton
---- 2021-05-29 22:19:50.973494 GreenViewController.viewDidLoad()
---- 2021-05-29 22:19:51.296498 GreenViewController.viewWillAppear(_:)
---- 2021-05-29 22:19:52.418074 GreenViewController.viewDidAppear(_:)
---- GreenViewController.toBlueButton
---- 2021-05-29 22:19:54.849773 BlueViewController.viewDidLoad()
---- 2021-05-29 22:19:54.854108 BlueViewController.viewWillAppear(_:)
---- 2021-05-29 22:19:55.359907 BlueViewController.viewDidAppear(_:)
---- BlueViewController.unwindToRedButton
---- RedViewController.unwindToRedVC(_:)
---- 2021-05-29 22:19:58.722712 BlueViewController.viewWillDisappear(_:)
---- 2021-05-29 22:19:58.738120 BlueViewController.viewDidDisappear(_:)
---- 2021-05-29 22:19:58.739315 BlueViewController.deinit
---- 2021-05-29 22:19:58.743068 GreenViewController.viewWillDisappear(_:)
---- 2021-05-29 22:19:59.263514 GreenViewController.viewDidDisappear(_:)
---- 2021-05-29 22:19:59.264118 GreenViewController.deinit
```
```
---- 2022-12-11 00:28:35.306619 RedViewController.viewDidLoad()
---- 2022-12-11 00:28:35.332430 RedViewController.viewWillAppear(_:)
---- 2022-12-11 00:28:35.424737 RedViewController.viewDidAppear(_:)
---- 2022-12-11 00:28:42.720062 RedViewController.toGreenButton
---- 2022-12-11 00:28:42.726156 GreenViewController.viewDidLoad()
---- 2022-12-11 00:28:42.744085 GreenViewController.viewWillAppear(_:)
---- 2022-12-11 00:28:43.341599 GreenViewController.viewDidAppear(_:)
---- 2022-12-11 00:28:49.908918 GreenViewController.toBlueButton
---- 2022-12-11 00:28:49.912387 BlueViewController.viewDidLoad()
---- 2022-12-11 00:28:49.918733 BlueViewController.viewWillAppear(_:)
---- 2022-12-11 00:28:50.427153 BlueViewController.viewDidAppear(_:)
---- 2022-12-11 00:28:56.135894 BlueViewController.unwindToRedButton
---- 2022-12-11 00:28:56.136312 RedViewController.unwindToRedVC(_:)
---- 2022-12-11 00:28:56.139281 BlueViewController.viewWillDisappear(_:)
---- 2022-12-11 00:28:56.141373 GreenViewController.viewWillDisappear(_:)
---- 2022-12-11 00:28:56.645622 GreenViewController.viewDidDisappear(_:)
---- 2022-12-11 00:28:56.646899 BlueViewController.viewDidDisappear(_:)
---- 2022-12-11 00:28:56.647223 BlueViewController.deinit
---- 2022-12-11 00:28:56.648095 GreenViewController.deinit
```
Above trace confirms that the unwind segue from Blue to Red does not cause the intermediate, Green, to execute a transient sequence
```
GreenViewController.viewWillAppear(_:)
GreenViewController.viewDidAppear(_:)
```
However, that behavoir was seen in at least one application.
This is not yet understood.
Possible hypotheses:
Green (in the other app) has more resources to unload and that takes time to the Green to execute `viewWillAppear(_:)`.
Green (in the other app) has a transient reference retain (not a reference cycle).