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From "Jan F. Weber (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (FLEX-34749) DateSpinner and SpinnerList scrolling behavior inaccurate/broken
Date Thu, 12 Feb 2015 12:37:11 GMT

     [ https://issues.apache.org/jira/browse/FLEX-34749?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jan F. Weber updated FLEX-34749:
--------------------------------
    Description: 
The scrolling behavior of the DateSpinner and SpinnerList is very inaccurate/broken and does
not correctly snap to the nearest list entry after the user has finished scrolling. This happens
in most of the use cases. In fact, the lists spin up or down approximately between 3 to 10
entries, depending on the scroll direction.

This seems to be an issue with the position of the entry under the selection indicator. Only
if you scroll an entry in a way that it is placed at the very middle of the indicator and
does not overlap the spinner does not automatically spin several items up or down. 

You can use this example to see the inaccuracy/spinning afterwards after releasing in action:
http://devgirl.org/2011/11/17/flex-mobile-development-datespinner-sample-with-source/


  was:
The scrolling behavior of the DateSpinner and SpinnerList is very inaccurate/broken and does
not correctly snap to the nearest list entry after the user has finished scrolling. This happens
in most of the use cases. In fact, the lists spin up or down approximately between 3 to 10
entries, depending on the scroll direction.

This seems to be an issue with the throw velocity, which obviously is miscalculated. The effect
occurs especially when the mouse or touch-release happens outside of the components bounds.
Waiting a few seconds after spinning before releasing does not make any difference.

You can use this example to see the inaccuracy/spinning afterwards after releasing in action:
http://devgirl.org/2011/11/17/flex-mobile-development-datespinner-sample-with-source/


       Priority: Critical  (was: Blocker)

> DateSpinner and SpinnerList scrolling behavior inaccurate/broken
> ----------------------------------------------------------------
>
>                 Key: FLEX-34749
>                 URL: https://issues.apache.org/jira/browse/FLEX-34749
>             Project: Apache Flex
>          Issue Type: Bug
>          Components: Mobile: DateSpinner, Mobile: SpinnerList
>    Affects Versions: Apache Flex 4.13.0, Apache Flex 4.12.1, Apache Flex 4.14.0
>         Environment: Windows 7 64Bit, Flex 4.14.0, AIR 16
>            Reporter: Jan F. Weber
>            Priority: Critical
>              Labels: DateSpinner, SpinnerList
>
> The scrolling behavior of the DateSpinner and SpinnerList is very inaccurate/broken and
does not correctly snap to the nearest list entry after the user has finished scrolling. This
happens in most of the use cases. In fact, the lists spin up or down approximately between
3 to 10 entries, depending on the scroll direction.
> This seems to be an issue with the position of the entry under the selection indicator.
Only if you scroll an entry in a way that it is placed at the very middle of the indicator
and does not overlap the spinner does not automatically spin several items up or down. 
> You can use this example to see the inaccuracy/spinning afterwards after releasing in
action:
> http://devgirl.org/2011/11/17/flex-mobile-development-datespinner-sample-with-source/



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