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#652 Review / test UI state restoration error pathes

iphone_1.10
open
nobody
None
5
2020-08-02
2020-08-02
Christa Runge
No

Missing UI state during restoration may not lead to a crash.
Verify that for all stored UI state elements a sufficient error strategy is implemented, like:

  • detection of missing values
  • default / fallback values
  • dismiss incomplete initialised view controllers
  • etc

Discussion

  • Christa Runge

    Christa Runge - 2020-08-02
    • Description has changed:

    Diff:

    --- old
+++ new
@@ -1,5 +1,6 @@
 Missing UI state during restoration may not lead to a crash. 
 Verify that for all stored UI state elements a sufficient error strategy is implemented, like:
+
 * detection of missing values
 * default / fallback values
 * dismiss incomplete initialised view controllers
     

  • Christa Runge

    Christa Runge - 2020-08-02

    Investigate what is a good error strategy:

    • popViewControllerAnimated: what happens if this is not the last on the stack? Will it be removed in isolation?
    • popToViewControllerAnimated: how to locate the 'last good' parent? Responsibilities to provide error status and to perform strategy?
    • popToRootControllerAnimated: should work always - but maybe too hard?
     

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