[android-components](../../index.md) / [mozilla.components.concept.tabstray](../index.md) / [TabsTray](index.md) / [onTabsChanged](./on-tabs-changed.md)

# onTabsChanged

`abstract fun onTabsChanged(position: `[`Int`](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, count: `[`Int`](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`): `[`Unit`](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) [(source)](https://github.com/mozilla-mobile/android-components/blob/master/components/concept/tabstray/src/main/java/mozilla/components/concept/tabstray/TabsTray.kt#L59)

Called after updateTabs() when count number of tabs are updated at the
given position.

