Listview triggers checkedChange event when using switches

[curtiscarlson]

Version

2.5.0-alpha.1

Reproduction link

https://play.nativescript.org/?template=play-vue&id=EpO6YJ

Platform and OS info

Android 9 and Ios 12, nativescript playground and sidekick

Steps to reproduce

open playground app on phone. change a switch and scroll. for example, if you switch off "eight", "eight" might switch back on as you scroll, or other items may switch off.

What is expected?

the model is affected as intended

What is actually happening?

the model is changed unpredictably. As you scroll, the checkedChanged event fires unintentionally.

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This is likely due to your virtual scroll implementation. If I need to change my code to make this work I am open to that. But I do not see a workaround right now because the event fires when it should not. I don't know what version the playground uses so I selected the latest version.

[curtiscarlson]

OK I have worked on this a little more and I don't think it has anything to do with the event firing. The listView is actively over-writing changes in the model when you scroll.

https://play.nativescript.org/?template=play-vue&id=EpO6YJ&v=7

https://play.nativescript.org/?template=play-vue&id=EpO6YJ&v=10

on the last one there, change a switch, scroll down, and change another. check the device console.

Please let me know if I am missing something?

[curtiscarlson]

It needed a :key property, feeling kind of embarrassed. But I will leave it up in case anybody finds this.

https://play.nativescript.org/?template=play-vue&id=EpO6YJ&v=12

[nativescript-vue-bot]

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