android-jetpack-compose - Jetpack 撰写 : How to listen column scrolled to end?

Question

我有一个包含多个 View 元素的撰写列。我想检测用户何时垂直滚动该列并到达其末端。我们怎样才能做到这一点？

Answer 1

你可以使用 scrollState.value 和 scrollState.maxValue 来检查它

val scrollState = rememberScrollState()

Log.i("ScrollValue", "current: ${scrollState.value}, max: ${scrollState.maxValue}")
if (scrollState.value == scrollState.maxValue) {
    // End
}

Column(
    modifier = Modifier
        .fillMaxSize()
        .verticalScroll(scrollState)
) {...}