ListView component is crashing when scrollToIndex() is used with async data source

The issue can be seen on the link bellow. I make a sample with a list of dogs breeds which is loaded from a REST service (DogService). The ListView is bound to an Observable from BehaviorSubject (DogStore). After the data is loaded from the REST service it is passed to the store. If after the data is passed to the data store the scrollToIndex() method is called the app crashes.

In the example I made maybe there is no sense to passing data like that but in a bigger project where the data can come from a different data sources I think there is. I’m open to suggestion for alternative implementations.

https://play.nativescript.org/?template=play-ng&id=ehB2Sd

[fhackenb]

@tsonevn any update on this? I’m getting a similar issue (for iOS, haven’t tried android). I have two pages with listviews and everytime a new item comes in, I push it to the bottom of the list and scroll to the bottom using scrollToIndex(listLength - 1). It doesn’t crash consistently, appears to happen only after switching back and forth between pages a few times and inserting new items.

I’ve tried surrounding the function call with a try{}catch block, but I’m not getting any output, the app just crashes.

[fhackenb]

@tsonevn Any update on this? For android the scrollToBottom function doesn’t cause issues but for iOS it occasionally crashes. Alternatively is there a way to catch this error instead of having it crash the app? Because surrounding the call in try{}catch blocks does not do the trick