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A question about role slider and android TalkBack with chrome WebView

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From:
Date: Aug 13, 2019 12:04AM

Hi, I'm Hyongsop Kim from Korea and accessibility tester.
To test role slider, I referred wai-aria authoring practices slide example site.
Within this site, it is posble to use slider with keyboard with my screen reader with no problem.
By the way, with my android TalkBack with chrome WebView, TalkBack says it is slider and you can press volume button to set, but my volume button is not working.
By the way, within youtube mobile web with android chrome WebView, it is possible to use time adjustable slider with volume key.
Therefore I really wondering to let adjust slider with volume key for TalkBack users, what kind of script should I use.
Is it only working within accessibility object model?
But in case of youtube mobile web, my chrome is not canary, but I can adjust slider with volume key with TalkBack.
Please help me.
Thank you.

김형섭 / Hyongsop Kim
(주)엔비전스 / 웹접근성사업팀 팀장

서울시 종로구 가회동 1-29
1-29 Gahoe-dong, Jongno-gu, Seoul, Korea
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