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Start your free trialAndrew Stevens
11,083 PointsHow do I bind values from Visual Crossing?
Hi, As Dark Sky is no longer available I am using Visual Crossings API instead.
When I run the application in debugger I can see the data populates as expected, yet when I try to bind these values it throws a JSON Exception stating there are no values.
package com.shayledevops.stormy;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.databinding.DataBindingUtil;
import android.app.AlertDialog;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.Bundle;
import android.text.method.LinkMovementMethod;
import android.util.Log;
import android.widget.TextView;
import android.widget.Toast;
import com.shayledevops.stormy.databinding.ActivityMainBinding;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.IOException;
import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;
public class MainActivity extends AppCompatActivity {
public static final String TAG = MainActivity.class.getSimpleName();
private CurrentWeather currentWeather;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
ActivityMainBinding binding = DataBindingUtil.setContentView(MainActivity.this,
R.layout.activity_main);
TextView visualCrossing = findViewById(R.id.visualCrossingAttribution);
visualCrossing.setMovementMethod(LinkMovementMethod.getInstance());
String apiKey = "YA4M8AJSQCCNKMUCR9SBP8EXD";
double latitude = 37.8267;
double longitude = 122.4233;
String forecastURL = "https://weather.visualcrossing.com/VisualCrossingWebServices/rest/services/timeline/"
+ latitude + "," + longitude
+ "?key=" + apiKey;
if(isNetworkAvailable()){
OkHttpClient client = new OkHttpClient();
Request request = new Request.Builder()
.url(forecastURL)
.build();
Call call = client.newCall(request);
call.enqueue(new Callback() {
@Override
public void onFailure(@NonNull Call call, @NonNull IOException e) {
}
@Override
public void onResponse(@NonNull Call call, @NonNull Response response) throws IOException {
try {
String jsonDATA = response.body().string();
Log.v(TAG, jsonDATA);
if (response.isSuccessful()){
currentWeather = getCurrentDetails(jsonDATA);
CurrentWeather displayWeather = new CurrentWeather(
currentWeather.getLocationLabel(),
currentWeather.getIcon(),
currentWeather.getTime(),
currentWeather.getTemperature(),
currentWeather.getHumidity(),
currentWeather.getPrecipChance(),
currentWeather.getSummary(),
currentWeather.getTimezone()
);
binding.setWeather(displayWeather);
}
else {
alertUserAboutError();
}
} catch (IOException e) {
Log.e(TAG, "IO Exception Caught: ", e);
}
catch (JSONException e) {
Log.e(TAG, "JSON Exception caught: ", e);
}
}
});
}
Log.d(TAG, "Main UI code is running, hooray!");
}
private CurrentWeather getCurrentDetails(String jsonDATA) throws JSONException {
JSONObject forecast = new JSONObject(jsonDATA);
String timezone = forecast.getString("timezone");
Log.i(TAG,"From JSON: " + timezone);
JSONObject currently = forecast.getJSONObject("currentConditions");
CurrentWeather currentWeather = new CurrentWeather();
currentWeather.setHumidity(currently.getDouble("humidity"));
currentWeather.setTime(currently.getLong("datetimeEpoch"));
currentWeather.setIcon(currently.getString("icon"));
currentWeather.setLocationLabel("Alcatraz Island, CA");
// currentWeather.setPrecipChance(currently.getDouble("precipprob"));
currentWeather.setSummary(currently.getString("description"));
currentWeather.setTemperature(currently.getDouble("temp"));
currentWeather.setTimezone(timezone);
Log.d(TAG, currentWeather.getFormatedTime());
return currentWeather;
}
private boolean isNetworkAvailable() {
ConnectivityManager manager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkInfo = manager.getActiveNetworkInfo();
boolean isAvailable = false;
if (networkInfo != null && networkInfo.isConnected()){
isAvailable = true;
}
else {
Toast.makeText(this, R.string.network_unavailable_message,
Toast.LENGTH_LONG).show();
}
return isAvailable;
}
private void alertUserAboutError() {
AlertDialogueFragment dialogue = new AlertDialogueFragment();
dialogue.show(getSupportFragmentManager(), "error_dialog");
}
}
Any ideas as to where I'm going wrong here?
bjoern schaefer
30 Pointsbjoern schaefer
30 PointsHi - i am actually working at Visual Crossing - this looks like you have some naming mismatch - we have a document listing the 'translations' of the fields : https://www.visualcrossing.com/resources/blog/how-to-replace-the-dark-sky-api-using-the-visual-crossing-timeline-weather-api/
that should resolve your issue
Cheers - Bjoern