If anyone is curious, this is how I resolved it:
https://github.com/Keeper-of-the-Keys/gpodder-sailfish/blob/episode-art-list/qml/ArtArea.qml
Op di 7 apr. 2020 om 20:19 schreef Alexey Andreyev <
yetanotherandre...@gmail.com>:
> Hello! I could be wrong, but I've probably faced BackgroundItem as the
> freezes reason (ListItem inherits BackgroundItem) the other day with the
> Silica's ListView.
> I could recommend to try fallback to Item and MouseArea from ListItem and
> BackgroundItem accordingly and check is that true. Just a hint from my side
> what to check twice, I would be glad to hear about the results is that the
> case.
>
> вт, 7 апр. 2020 г. в 18:52, E.S. Rosenberg <
> es.rosenberg+sailfishos....@gmail.com>:
>
>> Hi David,
>> You are absolutely correct, this is the better solution which runs at a
>> reasonable speed (though I expect it consumes more memory).
>> Thanks!
>> Eli
>> PS - so far I have never really profiled the application for memory usage
>> or tried to do so, does the SDK have some way of doing this?
>>
>> Op di 7 apr. 2020 om 11:55 schreef David Llewellyn-Jones <
>> da...@flypig.co.uk>:
>>
>>> Hi Eli,
>>>
>>> I'm probably misunderstanding the situation, but can you make individual
>>> items visible or not (visible: true/false), rather than using Loaders in
>>> the list?
>>>
>>> David
>>>
>>> On 07/04/2020 11:22, E.S. Rosenberg wrote:
>>> > Hi Andrey,
>>> > Thanks for the suggestion, though having them as Components in the same
>>> > file instead of external qml files does improve performance it is still
>>> > a lot slower then just having the component directly in use without a
>>> > Loader.
>>> >
>>> > ie:
>>> >
>>> > ListItem {
>>> > (...)
>>> > ArtArea {
>>> > }
>>> > }
>>> >
>>> > Of course like that there is no logic to have either ArtArea or
>>> > CoverArea but I can have logic in each ArtArea as to which image it is
>>> > displaying so image loading an logic speed are not the issue but rather
>>> > just the loader (I can have 400+ length lists where you really see the
>>> > slowdown).
>>> >
>>> > Any other suggestions?
>>> > Thanks!
>>> > Eli
>>> >
>>> > Op di 7 apr. 2020 om 01:15 schreef Андрей Кожевников
>>> > <coderusin...@gmail.com <mailto:coderusin...@gmail.com>>:
>>> >
>>> > wrap inside Component and set using sourceComponent property
>>> >
>>> > вт, 7 апр. 2020 г. в 01:13, E.S. Rosenberg
>>> > <es.rosenberg+sailfishos....@gmail.com
>>> > <mailto:es.rosenberg%2bsailfishos....@gmail.com>>:
>>> >
>>> > Hi all,
>>> > In the application I maintain (gPodder) I would like to show an
>>> > element holding Image(s) in each ListItem, depending on whether
>>> > or not the ListItem has a property either a component with 2
>>> > images or a component with 1 image should be loaded (an
>>> possibly
>>> > also a no image fallback).
>>> >
>>> > I have tried implementing this using a Loader:
>>> > Loader {
>>> > id: artArea
>>> > anchors {
>>> > left: parent.left
>>> > }
>>> > height: titleItem.height + subtitleItem.height
>>> > width: titleItem.height + subtitleItem.height
>>> >
>>> > asynchronous: true
>>> > source: episode_art ? "ArtArea.qml" : "CoverArea.qml"
>>> > }
>>> >
>>> > However this totally tanks performance, using just "ArtArea"
>>> > without the loader is really fast thus the issue is not the
>>> > amount of images that need to be loaded.
>>> > Is there a better/faster way to do this?
>>> >
>>> > Thanks!
>>> > Eli
>>> > _______________________________________________
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>>>
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