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https://issues.apache.org/jira/browse/WEEX-657?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16698476#comment-16698476
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ASF GitHub Bot commented on WEEX-657:
-------------------------------------
blackteachinese opened a new pull request #1813: [WEEX-657][iOS] Add a feature
to control the offset of list attach to…
URL: https://github.com/apache/incubator-weex/pull/1813
… the bottom`
I have add a '_isContentAttachBottom' attribute in WXListComponent to
controll whether open this feature. The Weex Component can pass the
‘_isContentAttachBottom’ variable from js to native by 'initWithRef'
and 'updateAttributes' function. The '_isContentAttachBottom' variable
will be analysed to a bool type and cached in WXTableView object.
When the WXTableView object is called the 'setFrame' function,if the
'_isContentAttachBottom' variable is true , then the 'contentOffset'
function of WXTableView object will be triggered to keep the content offset
at the bottom.When the WXTableView object is running the transition
animation, the 'setFrame' will be call every 16 msec . So when the animation
is excuting，the content offset of list will be alaways attached to the
bottom .
feature: 657
First of all, thank you for your contribution!
Please makes sure that these checkboxes are checked before submitting your
PR, thank you!
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**elif** *isNewFeature* **:**
* [ ] Update API docs for the component.
* [ ] Update/Add demo to demonstrate new feature.
* [ ] Update test scripts for the feature.
* [ ] Add unit tests for the feature.
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> When the List component is shortened for Transition animation, the content
> offset position of the List needs to be fixed at the bottom.
> ---------------------------------------------------------------------------------------------------------------------------------------
>
> Key: WEEX-657
> URL: https://issues.apache.org/jira/browse/WEEX-657
> Project: Weex
> Issue Type: Improvement
> Components: iOS
> Affects Versions: 0.19
> Environment: iOS
> Reporter: hongwei
> Assignee: XuYouyang
> Priority: Major
> Labels: ready-to-commit
> Fix For: 0.19
>
> Original Estimate: 48h
> Remaining Estimate: 48h
>
> We have a message list business scenario, the List component will set the
> length of the Height change in the Transition animation. At this time, the
> content offset of the List needs to be kept at the bottom. The List component
> does not currently have this capability.
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