Nativescript ListView onItemLoading event

Question

I'm using the built-in ListView and have the following setup.

<ListView items="{{ myItems }}" itemLoading="onItemLoading" itemTemplateSelector="onTemplateSelector">
<ListView.itemTemplates>
  <template key="even">
    <Label text="{{ age }}" style.backgroundColor="white" />
  </template>
  <template key="odd">
    <Label text="{{ age }}" style.backgroundColor="gray" />
  </template>
</ListView.itemTemplates>

During the onLoadingEvent - where each item is about to be loaded, I look at the args.view and it's always undefined. I would have expected it to be the full template view structure - depending on what onTemplateSelector returned.

Looking at some more of the documentation and it seems that if it's undefined then you've got to create the entire structure within code.

Did I miss something? If no, then what's the purpose of allowing the template item definitions (e.g. Label in my sample code).

A work-around could be - can I pass an xml definition in a string to a function and have it create the views in the xml. This in {N} w/o Angular. — dashman
– dashman, Commented Mar 22, 2017 at 23:30

Robert Laverty · Accepted Answer · 2017-03-23 02:31:01Z

1

If you just do

<ListView.itemTemplates> <Label text="{{ age }}" style.backgroundColor="gray" /> </ListView.itemTemplates>

That will work fine. I'm not sure what your <template> element is.

answered Mar 23, 2017 at 2:31

Robert Laverty

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