jetpack compose 向后滑动导航不记得 PrimaryTabRow selectedIndex

问：

我发现当我导航到一个页面然后向后滑动时，不记得了，并且总是以 0 结束。有没有办法在更改视图时记住索引值？谢谢！selectedTabIndex

var tabIndex by remember { mutableStateOf(0) }
val tabs = listOf("Never Give", "You Up")


       PrimaryTabRow(
                selectedTabIndex = tabIndex
            ) {
                tabs.forEachIndexed { index, title ->
                    Tab(text = { Text(title) },
                        selected = tabIndex == index,
                        onClick = { tabIndex = index }
                    )
                }
            }
            when (tabIndex) {
                0 -> SomeView()
                1 -> AnotherView()
            }