Android, Jetpack Compose - Composable function not getting refreshed

Question

I am new to Android Jetpack compose. All i want to do is to update data in UI when it gets from API. Here is my Composable function:

@Composable
fun getCurrentWeather(lat : Double, long : Double, nc : NavHostController,
                      vm: CurrentConditionsViewModel = hiltViewModel()) {

    vm.getWeather(lat = lat, long = long)
    var check by remember { mutableStateOf("") }
    var text by remember { mutableStateOf("") }
    val state = vm._state.value

        when (state) {
            is Resource.Loading -> {

                CircularProgressIndicator(
                    modifier = Modifier
                        .fillMaxSize()
                        .wrapContentSize(align = Alignment.Center)

                )
                check = "hi"
            }

            is Resource.Success -> {
                for (i in state.data!!.weather) {
                    print("called")
                
                }
                state.data.name.let {
                    text = it.toString()
                }
            }

            is Resource.Error -> {
                Log.d("StateError", state.message.toString())

            }
        }
}

And here is my ViewModel:

@HiltViewModel
class CurrentConditionsViewModel @Inject constructor(private val weatherRepository: WeatherRepositoryImpl) :
    ViewModel() {

    val _state: MutableState<Resource<CurrentConditionsDataModel>?> = mutableStateOf(null)


    fun getWeather(lat : Double, long : Double) {
        viewModelScope.launch {
            weatherRepository.getWeather(latt = lat, longg = long).collect {
                _state.value = it
            }
        }
    }
}

Everything is going fine but the only problem is that Composable function is not getting called state variable is updated in view model. I have tried using other variables too such as check and text, yet Composable is only getting called once.

What am I doing wrong? I there anything I have missed? Thanks in advance.