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x/mobile: basic demo on andorid has slight GUI race conditions bug #11804

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ghost opened this issue Jul 21, 2015 · 4 comments

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commented Jul 21, 2015

golang.org/x/mobile/example/basic
its a UI interaction bug.

Context:
gedw99-MacBook-Pro:audio apple$ go version
go version go1.5beta2 darwin/amd64

gedw99-MacBook-Pro:audio apple$ which go
/usr/local/go/bin/go
gedw99-MacBook-Pro:audio apple$

Steps to reproduce:
compile for android
load apk on nexus 6
open program and it works fine.
hit home button
open program and it works fine
hit back button
open program and it shows a dithered triangle.

  • it looks like 2 programs running on top of each other with a alpha transparency between them.

@ianlancetaylor ianlancetaylor added this to the Unreleased milestone Jul 21, 2015

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commented Jul 21, 2015

@crawshaw crawshaw self-assigned this Jul 21, 2015

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commented Jul 21, 2015

Thanks for the report. On a Galaxy Nexus I see some kind of crash for open->back button->open. This is probably a recent regression (due to our lack of good integration testing for apps). I'll take a look.

@rakyll rakyll changed the title gomobile: Basic demo on andorid has slight GUI race conditions bug x/mobile: basic demo on andorid has slight GUI race conditions bug Jul 21, 2015

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commented Jul 21, 2015

happy to report it. thanks for your hard work.

In relation to what you get on the Galaxy Nexus, the crash is visual or on log files ? On nexus 6 the GUI does not crash, just has this weird dithering on the triangle. i did not check the logs.

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commented Jul 22, 2015

CL https://golang.org/cl/12533 mentions this issue.

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