[android-components](../../index.md) / [mozilla.components.feature.session](../index.md) / [SwipeRefreshFeature](index.md) / [canChildScrollUp](./can-child-scroll-up.md)

# canChildScrollUp

`fun canChildScrollUp(parent: SwipeRefreshLayout, child: <ERROR CLASS>?): `[`Boolean`](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html) [(source)](https://github.com/mozilla-mobile/android-components/blob/master/components/feature/session/src/main/java/mozilla/components/feature/session/SwipeRefreshFeature.kt#L45)

Callback that checks whether it is possible for the child view to scroll up.
If the child view cannot scroll up and the scroll event is not handled by the webpage
it means we need to trigger the pull down to refresh functionality.

