Screen Is Empty After Fetching Weather Information

[Abubakar Oladeji]

Okay. So, I started with the tutorial and everything has been going on fine not until I got to chapter 10 trying to implement the Asyn.

 doAsync {
        val result = RequestForecastCommand("94043").execute()
        Log.e(javaClass.simpleName, result.toString()) <-- It doesn't get to this place at all
        uiThread() {
            Log.e(TAG, "I am here")
            Log.e(javaClass.simpleName, result.toString())
            forcast_list.adapter = ForcastListAdapter(result)
        }
    }

Then, I debugged further and checked the ForecastRequest.kt file

 class ForecastRequest(val zipCode: String) {

companion object {
    private val APP_ID = "15646a06818f61f7b8d7823ca833e1ce"
    private val URL = "http://api.openweathermap.org/data/2.5/" +
            "forecast/daily?mode=json&units=metric&cnt=7"
    private val COMPLETE_URL = "$URL&APPID=$APP_ID&q="
}

fun execute(): ForecastResult {
    val forcastJsonStr = URL(COMPLETE_URL + zipCode).readText()
    Log.e(javaClass.simpleName, forcastJsonStr)<-- This printed out a result
    return Gson().fromJson(forcastJsonStr, ForecastResult::class.java)
}
}

I don't know why it's not throwing any error or any bug though. And should it be a Gson conversion error, at least I'm supposed to get an error right?

[Antonio Leiva]

The API may have changed, I'll take a look. Thanks!

Regarding the exception not being thrown, you have some more info here: Kotlin/anko#182

[Abubakar Oladeji]

Okay. Now I get it. But, I've not experienced the issue few hours after I posted the question. Probably something was going on. Because, the data was logged correctlly and the JSON object was in correlation with the POJO objects. Looking at Kotlin/Anko#182 I can see how to catch an exception. Should there be any. Thanks