onFocusChanged
Common
fun Modifier.onFocusChanged(onFocusChanged: (FocusState) -> Unit): Modifier
Add this modifier to a component to observe focus state events. onFocusChanged is invoked when the focus state changes. The onFocusChanged modifier listens to the state of the first focusTarget following this modifier.
Note: If you want to be notified every time the internal focus state is written to (even if it hasn't changed), use onFocusEvent instead.