How to wait result from OKHTTP response without freezing app Kotlin? - android-studio

Question

I am writing a small application in Kotlin with JetpackCompose and my application freezes (CountDownLatch) when a request is called, is there any way to avoid this?
Without CountDownLatch, okhttp does not have time to return the result before the method completes.
MainActivity.kt
fun infoServer() {
val viewModel = ViewModelProvider(this).get(MainActivityViewModel::class.java)
var txt = remember {
mutableStateOf(0)
}
Column(
horizontalAlignment = Alignment.CenterHorizontally,
modifier = Modifier.fillMaxWidth()
) {
Row(
horizontalArrangement = Arrangement.Center,
modifier = Modifier
.padding(10.dp)
) {
Text(
text = "Player Count ",
style = MaterialTheme.typography.body1
)
Text(
text = txt.value.toString(),
style = MaterialTheme.typography.body1,
fontWeight = FontWeight.Bold
)
}
Row(horizontalArrangement = Arrangement.Center) {
eveButton(
text = "Update",
onClick = ({
viewModel.updatePlayerCount()
txt.value = viewModel.res
}),
modifier = Modifier
.padding(10.dp)
)
eveButton(
text = "Clear",
onClick = ({
txt.value = 0
}),
modifier = Modifier
.padding(10.dp)
)
}
}
}
MainActivityViewModel.kt
class MainActivityViewModel : ViewModel() {
var res = 0
fun updatePlayerCount() {
res = MainActivityModel().updateServerPlayers()
}
}
MainACtivityModel.kt
class MainActivityModel {
var result = 0
fun updateServerPlayers(): Int {
val client = OkHttpClient().newBuilder()
.connectTimeout(10, TimeUnit.SECONDS)
.writeTimeout(10, TimeUnit.SECONDS)
.callTimeout(10, TimeUnit.SECONDS)
.readTimeout(10, TimeUnit.SECONDS)
.retryOnConnectionFailure(true)
.build()
val request = Request.Builder()
.url("https://esi.evetech.net/latest/status/?datasource=tranquility")
.method("GET", null)
.build()
var countDownLatch = CountDownLatch(1)
client.newCall(request).enqueue(object : Callback {
override fun onFailure(call: Call, e: IOException) {
Log.d("Error Connection", e.toString())
}
override fun onResponse(call: Call, response: Response) {
response.use {
if (!response.isSuccessful) throw IOException("Error $response")
try {
var json =JSONObject(response.body!!.string())
countDownLatch.countDown()
result = json.getInt("players")
}
catch (e: Exception) {
Log.d("OKHTTP", e.toString())
}
}
}
})
countDownLatch.await()
Log.d("OKHTTP2", result.toString())
return result
}
}