Android 在 Jetpack Compose 中清除列表时可组合不重组

我有一个MutableStateFlow，差不多是emptyList.当我添加项目时，我的视图被重新组合，没有任何问题.现在，当列表被清除时，我想重新组合视图.我try 了一些代码，但什么也没有发生.

PairViewModel个

class PairViewModel : BaseViewModel() {
     val scanLowEnergyDevices by lazy { MutableStateFlow(emptyList<ScanResult>()) }

     fun addDevices(result: ScanResult) {
        scanLowEnergyDevices.value += result
    }
}

ContentStateful个

@Composable
fun ContentStateful(
    context: Context = LocalContext.current,
    viewModel: BloodPressurePairViewModel = getViewModel()
) {
    val activity = context as ComponentActivity
    val scanDeviceList by viewModel.scanLowEnergyDevices.collectAsStateWithLifecycle()
  
    ContentStateLess(
        scanDeviceList = scanDeviceList,
        resetAction = {
            viewModel.scanLowEnergyDevices.value.toMutableList().clear()
        }   
    )
}

ContentStateLess个

@Composable
fun ContentStateLess(
    scanDeviceList: List<ScanResult>,
    resetAction: () -> Unit,
) {
    AnimatedVisibility(visible = scanDeviceList.isNotEmpty()) {
        Text(text = "scanDeviceList ${scanDeviceList.size}")
        Button(onClick = { resetAction() }) {
            Text(text = "Reset")
        }
    }
}

这里出了什么问题？谢谢