Gallery: sometimes, on Android, the word "Demos" is half-way under the app bar on launch #5368

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1. sethladd

   added

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   frameworkflutter/packages/flutter repository. See also f: labels.flutter/packages/flutter repository. See also f: labels.

   customer: galleryRelating to flutter/gallery repository. Please transfer non-framework issues there.Relating to flutter/gallery repository. Please transfer non-framework issues there.

   on Aug 12, 2016
2. abarth commented on Aug 12, 2016

   

   abarth

   on Aug 12, 2016

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   I've seen this too. It appears to be some sort of race condition during startup.
3. HansMuller commented on Aug 12, 2016

   

   HansMuller

   on Aug 12, 2016

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   This looks like a consequence of MediaQuery.of(context).padding.top returning zero
4. abarth commented on Aug 12, 2016

   

   abarth

   on Aug 12, 2016

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   Maybe we don't initialize the padding early enough? I would have expected the layout to update when the padding changes to its final value... Is there a missing dependency with the scaffold's custom layout somehow?
5. abarth commented on Aug 12, 2016

   

   abarth

   on Aug 12, 2016

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     @override
     bool shouldRelayout(_ScaffoldLayout oldDelegate) {
       return padding != oldDelegate.padding;
     }
   

   That looks right...
6. HansMuller commented on Aug 12, 2016

   

   HansMuller

   on Aug 12, 2016

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   Maybe it is possible for Engine::OnViewportMetricsChanged() to have been called after the scaffold has looked up the window padding as well as not triggering a rebuild?

   Note also: So far I haven't been able to reproduce the problem and verify that the source is in fact the window padding being zero. This may all be idle speculation.
7. sethladd

   added this to the August milestone on Aug 15, 2016
8. sethladd commented on Aug 15, 2016

   

   sethladd

   on Aug 15, 2016

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   Another user stopped by my desk today and pointed this out :)
9. jason-simmons commented on Aug 18, 2016

   

   jason-simmons

   on Aug 18, 2016

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   I can reproduce this easily on the Android emulator
10. HansMuller commented on Aug 18, 2016

    

    HansMuller

    on Aug 18, 2016

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    Jason and I just sorted this out.

    When running on the Android emulator and occasionally when running Android native, MediaQuery.of(context).padding.top is zero when it's called at Widget initState() time. Calling it at build() time instead appears to consistently return the status bar's actual height.
11. HansMuller

    self-assigned this

    on Aug 18, 2016
12. HansMuller

    closed this as completedin #5485on Aug 18, 2016
13. github-actions commented on Sep 6, 2021

    

    github-actionsBot

    on Sep 6, 2021

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    This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of flutter doctor -v and a minimal reproduction of the issue.
14. github-actions

    locked as resolved and limited conversation to collaborators on Sep 6, 2021