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[flutter_adaptive_scaffold] Change selectedIndex on standardNavigationRail to allow null value. #3088

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joshryandavis
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Changed selectedIndex on standardNavigationRail to allow a null value to be set so that the NavRail can show nothing as being selected. The selectedIndex value is passed to NavigationRail which already permits null.

Fixes: #118888

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It looks like this pull request may not have tests. Please make sure to add tests before merging. If you need an exemption to this rule, contact Hixie on the #hackers channel in Chat (don't just cc him here, he won't see it! He's on Discord!).

If you are not sure if you need tests, consider this rule of thumb: the purpose of a test is to make sure someone doesn't accidentally revert the fix. Ask yourself, is there anything in your PR that you feel it is important we not accidentally revert back to how it was before your fix?

Reviewers: Read the Tree Hygiene page and make sure this patch meets those guidelines before LGTMing.

@joshryandavis joshryandavis marked this pull request as ready for review January 25, 2023 11:23
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I've added a test for the change.

@gspencergoog gspencergoog added the autosubmit Merge PR when tree becomes green via auto submit App label Jan 25, 2023
@auto-submit auto-submit bot merged commit add4d18 into flutter:main Jan 25, 2023
@joshryandavis joshryandavis deleted the make-adaptive-rail-index-nullable branch January 25, 2023 23:20
sybrands-place pushed a commit to sybrands-place/packages that referenced this pull request Jan 30, 2023
* main: (479 commits)
  removes raw ArrayLists (flutter#3101)
  Roll Flutter from c9affdb to 27f8ebd (15 revisions) (flutter#3098)
  [ci] Fix the new LUCI iOS build-all tasks (flutter#3099)
  [pigeon] [ObjC] Removes unused GetNullableObject function (flutter#3100)
  [pigeon] Swift host error handling (flutter#3084)
  Roll Flutter from a815ee6 to c9affdb (23 revisions) (flutter#3093)
  [ci] Enable min SDK version checks (flutter#3095)
  [pigeon] Fix C++ config handling (flutter#3094)
  [ci] Add LUCI version of iOS build-all (flutter#3096)
  [pigeon] Adds SwiftFunction annotation (flutter#2304)
  [flutter_adaptive_scaffold] Change `selectedIndex` on `standardNavigationRail` to allow null value. (flutter#3088)
  [pigeon] requires analyzer 5.2.0 (flutter#3090)
  Roll Flutter from c35efda to a815ee6 (22 revisions) (flutter#3089)
  [ci] Update legacy Flutter version tests (flutter#3087)
  Roll Flutter (stable) from 135454af3247 to b06b8b271095 (2551 revisions) (flutter#3086)
  [flutter_adaptive_scaffold] Fix leading and trailing Navigation Rail Widgets (flutter#3080)
  Roll Flutter from bd7bee0 to c35efda (24 revisions) (flutter#3085)
  [pigeon] Minor C++ output adjustments (flutter#3083)
  [pigeon] Updates writeScoped and addScoped to disallow symbol-less use. (flutter#3081)
  Roll Flutter from f33e8d3 to bd7bee0 (5 revisions) (flutter#3082)
  ...
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AdaptiveScaffold.standardNavigationRail selectedIndex not nullable unlike normal NavigationRail
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