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From "Piotr Zarzycki (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLEX-35269) [FlexJS] MDL - Dynamic Child Problem
Date Sat, 01 Apr 2017 18:20:41 GMT

    [ https://issues.apache.org/jira/browse/FLEX-35269?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15952337#comment-15952337

Piotr Zarzycki commented on FLEX-35269:

Following components are dynamic:

> [FlexJS] MDL - Dynamic Child Problem
> ------------------------------------
>                 Key: FLEX-35269
>                 URL: https://issues.apache.org/jira/browse/FLEX-35269
>             Project: Apache Flex
>          Issue Type: Bug
>    Affects Versions: Apache FlexJS 0.8.0
>            Reporter: Devsena
>            Assignee: Piotr Zarzycki
>            Priority: Critical
>         Attachments: MDLDynamicChildProblem.zip
> There is a major problem exists with dynamic or delayed child creation policy in FlexJS
MDL implementation.
> MDL components are very much popular for their finer looks and many of their trendy animations
etc. These animations etc. works good when you declare a child/component statically; that
means the child/component was always there. In a real world application we can't declare all
the available components at once. But these animations etc. fails badly when you adds a child/component
at run-time, by some button click or by any other means.
> A statically declared child/component I refer as this:
> {code}
> <mdl:GridCell column="1" percentWidth="100">
> 	<local:TextFields percentWidth="100"/> <!-- An external component -->
> </mdl:GridCell>
> {code}
> A dynamically added child/component I refer as:
> {code}
> protected function onButtonClickEvent(event:MouseEvent):void
> {
> 	var externalComponent:TextFields = new TextFields;
> 	externalComponent.percentWidth = 100;
> 	gdCell.addElement(externalComponent);
> }
> ...
> <mdl:GridCell id="gdCell" column="1" percentWidth="100"/>
> {code}
> *Problem:* When you add any component by above dynamic way, the component lost all of
it's animation, dynamism etc. Some components even became completely useless, i.e. Toast,
Snackbar, expanding search field etc. 
> I'm attaching herewith one demo project to demonstrate the problem I mentioned, which
consists of two parts - 1. Half of the application displayed a form type of component added
statically and having many text fields and they supposed to work properly and their animations
when ran. 2. The application holds a button named "Click to add External components" upon
clicking which adds the *_Same_* component from part#1 to fill the rest of the application
area but dynamically. This part of the application's fields never works properly or their
> Please, check.

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