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Bug 3065 - Screen is flickering during closing on-screen keyboard on Android
Summary: Screen is flickering during closing on-screen keyboard on Android
Status: RESOLVED FIXED
Alias: None
Product: SDL
Classification: Unclassified
Component: video (show other bugs)
Version: HG 2.1
Hardware: ARM Android (All)
: P2 normal
Assignee: Ryan C. Gordon
QA Contact: Sam Lantinga
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2015-07-16 18:55 UTC by Deve
Modified: 2016-10-01 22:15 UTC (History)
1 user (show)

See Also:

Attachments
example which was used to reproduce the bug (813 bytes, text/x-c++src)
2015-07-16 18:55 UTC, Deve 		Details
recorded attached example run on android (450.72 KB, video/x-msvideo)
2015-07-16 18:58 UTC, Deve 		Details
patch to maybe fix the flicker (1.00 KB, patch)
2015-12-08 19:27 UTC, Philipp Wiesemann 		Details | Diff
View All Add an attachment (proposed patch, testcase, etc.)

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Description Deve 2015-07-16 18:55:36 UTC 
Created attachment 2221 [details]
example which was used to reproduce the bug

When I'm trying to close on-screen keyboard using SDL_StopTextInput() function by touching the screen (SDL_FINGERUP or SDL_FINGERDOWN event), the screen is flickering. It is white for a while.

Note that it usually works without problems when I use phone's "back" button. I noticed flickering occasionally too, but not that often.

I thought that it's something wrong with my code, but I prepared an simple example and it is perfectly reproducible for me.ex

I tested it on current mercurial version.

I'm attaching an example code, which I use to reproduce it and recorded this example "in action" in avi file. Sorry about very high compression.
Comment 1 Deve 2015-07-16 18:58:56 UTC 
Created attachment 2222 [details]
recorded attached example run on android
Comment 2 Philipp Wiesemann 2015-12-08 19:22:39 UTC 
Thank you for reporting this problem.

Does this also happen in portrait orientation (or only in landscape)?
Comment 3 Philipp Wiesemann 2015-12-08 19:27:47 UTC 
Created attachment 2333 [details]
patch to maybe fix the flicker

The attached patch maybe fixes the flicker but not the actual fault causing it.
Comment 4 Deve 2015-12-08 20:01:19 UTC 
Indeed it seems to work fine when portrait orientation is used. As far as I tested it now, I didn't noticed any issues.

And your patch solves for me the flickering bug with landscape orientation.
Comment 5 Sam Lantinga 2016-10-01 22:15:12 UTC 
Patch accepted, thanks!
https://hg.libsdl.org/SDL/rev/282f839d2222