Type mismatch: inferred type is data class but Int was expected

June 26, 2022

I’m fetching data from API. But I’m facing a problem, the LazyColumn items is not accepting the state vairable. I have this error:

Type mismatch: inferred type is Weather? but Int was expected

code:

  @GET("/v1/forecast.json")
 suspend fun getWeatherInfo(
    @Query("key") apiKey:String = API_KEY,
    @Query("q") country:String
):Weather


 suspend fun getWeatherInfo(country:String):Weather{
    return weatherApi.getWeatherInfo(country = country)
}



private val _state = mutableStateOf(WeatherState())
val state: State<WeatherState>
    get() = _state

data class Weather(
    @SerialName("current")
    val current: Current,
    @SerialName("forecast")
    val forecast: Forecast,
    @SerialName("location")
    val location: Location
)

LazyColumn{

    items(state.weather){

    }

Any help?

>Solution :

So you are using wrong method. You should consider not using LazyColumn, as you probably do not need it, but if you do, it would be something like this:

val mutableState = mutableStateOf(WeatherState())

@Composable
fun LazyListWeather() {
    LazyColumn {
        item {
            Text(text = mutableState.value.toString())
        }
    }
}

But IMO you do not need. You have only one Weather item. Just use simple column, if you do not have list of WeatherState