import android.content.Intent;
import android.content.SharedPreferences;
import android.net.Uri;
-import android.os.AsyncTask;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.v4.app.Fragment;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
-import android.widget.Toast;
-import org.json.JSONArray;
-import org.json.JSONException;
-import org.json.JSONObject;
-
-import java.io.BufferedReader;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
-import java.net.HttpURLConnection;
-import java.net.URL;
import java.net.URLEncoder;
-import java.text.SimpleDateFormat;
import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Date;
-import java.util.List;
/**
* A placeholder fragment containing a simple view.
}
private void updateWeather() {
- FetchWeatherTask weatherTask = new FetchWeatherTask();
- SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(getActivity());
- String location = preferences.getString(getString(R.string.pref_location_key),
- getString(R.string.pref_location_default));
- // weatherTask.execute("2642465");
- weatherTask.execute(location);
+ String location = Utility.getPreferredLocation(getActivity());
+ new FetchWeatherTask(getActivity(), mForecastAdapter).execute(location);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
-// String[] forecastArray = {
-// "Today - Sunny - 10/10",
-// "Tomorrow - Cloudy - 11/11",
-// "Tuesday - Snow - 12/12",
-// "Wednesday - Rain - 13/13",
-// "Thursday - Hail - 14/14",
-// "Friday - Scorchio - 15/15",
-// "Saturday - Fog - 16/16"
-// };
-//
-// List<String> weekForecast = new ArrayList<String>(
-// Arrays.asList(forecastArray));
-
mForecastAdapter = new ArrayAdapter<String>(
getActivity(),
R.layout.list_item_forecast,
ListView listView = (ListView) rootView.findViewById(R.id.listview_forecast);
listView.setAdapter(mForecastAdapter);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
+
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int position, long l) {
String forecast = mForecastAdapter.getItem(position);
updateWeather();
}
- public class FetchWeatherTask extends AsyncTask<String, Void, String[]> {
-
- private final String LOG_TAG = FetchWeatherTask.class.getSimpleName();
-
- @Override
- protected void onPostExecute(String[] result) {
- if (result != null) {
- mForecastAdapter.clear();
-// for (String dayForecastStr: result) {
-// mForecastAdapter.add(dayForecastStr);
-// }
- mForecastAdapter.addAll(result);
- }
- }
-
- @Override
- protected String[] doInBackground(String... params) {
- if (params.length == 0) {
- return null;
- }
-
- // These two need to be declared outside the try/catch
- // so that they can be closed in the finally block.
- HttpURLConnection urlConnection = null;
- BufferedReader reader = null;
-
- // Will contain the raw JSON response as a string.
- String forecastJsonStr;
-
- String format = "json";
- String units = "metric";
- int numDays = 7;
-
- try {
- // Construct the URL for the OpenWeatherMap query
- // Possible parameters are avaiable at OWM's forecast API page, at
- // http://openweathermap.org/API#forecast
- final String FORECAST_BASE_URL = "http://api.openweathermap.org/data/2.5/forecast/daily?";
- // final String QUERY_PARAM = "id"; // use this if using a location ID
- final String QUERY_PARAM = "q";
- final String FORMAT_PARAM = "mode";
- final String UNITS_PARAM = "units";
- final String DAYS_PARAM = "cnt";
-
- Uri builtUri = Uri.parse(FORECAST_BASE_URL).buildUpon()
- .appendQueryParameter(QUERY_PARAM, params[0])
- .appendQueryParameter(FORMAT_PARAM, format)
- .appendQueryParameter(UNITS_PARAM, units)
- .appendQueryParameter(DAYS_PARAM, Integer.toString(numDays))
- .build();
-
- URL url = new URL(builtUri.toString());
-/**/ Log.v(LOG_TAG, "Built URI " + builtUri.toString());
-
- // Create the request to OpenWeatherMap, and open the connection
- urlConnection = (HttpURLConnection) url.openConnection();
- urlConnection.setRequestMethod("GET");
- urlConnection.connect();
-
- // Read the input stream into a String
- InputStream inputStream = urlConnection.getInputStream();
- StringBuffer buffer = new StringBuffer();
- if (inputStream == null) {
- // Nothing to do.
- return null;
- }
- reader = new BufferedReader(new InputStreamReader(inputStream));
-
- String line;
- while ((line = reader.readLine()) != null) {
- // Since it's JSON, adding a newline isn't necessary (it won't affect parsing)
- // But it does make debugging a *lot* easier if you print out the completed
- // buffer for debugging.
- buffer.append(line + "\n");
- }
-
- if (buffer.length() == 0) {
- // Stream was empty. No point in parsing.
- return null;
- }
- forecastJsonStr = buffer.toString();
-// Log.v(LOG_TAG, "Forecast JSON string: " + forecastJsonStr);
- try {
- return getWeatherDataFromJson(forecastJsonStr, numDays);
- } catch (JSONException e) {
- Log.e(LOG_TAG, e.getMessage(), e);
- e.printStackTrace();
- }
-
- // This will only happen if we fail to read the forecast
- return null;
-
- } catch (IOException e) {
- Log.e(LOG_TAG, "Error ", e);
- // If the code didn't successfully get the weather data, there's no point in attempting
- // to parse it.
- forecastJsonStr = null;
- } finally {
- if (urlConnection != null) {
- urlConnection.disconnect();
- }
- if (reader != null) {
- try {
- reader.close();
- } catch (final IOException e) {
- Log.e(LOG_TAG, "Error closing stream", e);
- }
- }
- }
- return null;
- }
-
- /* The date/time conversion code is going to be moved outside the asynctask later,
- * so for convenience we're breaking it out into its own method now.
- */
- private String getReadableDateString(long time) {
- // Because the API returns a unix timestamp (measured in seconds),
- // it must be converted to milliseconds in order to be converted to valid date.
- Date date = new Date(time * 1000);
- SimpleDateFormat format = new SimpleDateFormat("E, MMM d");
- return format.format(date).toString();
- }
-
- /**
- * Prepare the weather high/lows for presentation.
- */
- private String formatHighLows(double high, double low) {
- SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(getActivity());
- String units = preferences.getString(getString(R.string.pref_units_key),
- getString(R.string.pref_units_default));
- // For presentation, assume the user doesn't care about tenths of a degree.
- long roundedHigh = Math.round(high);
- long roundedLow = Math.round(low);
-
- if (units.equals(getString(R.string.pref_units_imperial))) {
- roundedHigh = Math.round(high * 9 / 5 + 32);
- roundedLow = Math.round(low * 9 / 5 + 32);
- }
-
- String highLowStr = roundedHigh + "/" + roundedLow;
- return highLowStr;
- }
-
- /**
- * Take the String representing the complete forecast in JSON Format and
- * pull out the data we need to construct the Strings needed for the wireframes.
- * <p/>
- * Fortunately parsing is easy: constructor takes the JSON string and converts it
- * into an Object hierarchy for us.
- */
- private String[] getWeatherDataFromJson(String forecastJsonStr, int numDays)
- throws JSONException {
- // These are the names of the JSON objects that need to be extracted.
- final String OWM_LIST = "list";
- final String OWM_WEATHER = "weather";
- final String OWM_TEMPERATURE = "temp";
- final String OWM_MAX = "max";
- final String OWM_MIN = "min";
- final String OWM_DATETIME = "dt";
- final String OWM_DESCRIPTION = "main";
-
- JSONObject forecastJson = new JSONObject(forecastJsonStr);
- JSONArray weatherArray = forecastJson.getJSONArray(OWM_LIST);
-
- String[] resultStrs = new String[numDays];
- for (int i = 0; i < weatherArray.length(); i++) {
- // For now, using the format "Day, description, hi/low"
- String day;
- String description;
- String highAndLow;
-
- // Get the JSON object representing the day
- JSONObject dayForecast = weatherArray.getJSONObject(i);
-
- // The date/time is returned as a long. We need to convert that
- // into something human-readable, since most people won't read "1400356800" as
- // "this saturday".
- long dateTime = dayForecast.getLong(OWM_DATETIME);
- day = getReadableDateString(dateTime);
-
- // description is in a child array called "weather", which is 1 element long.
- JSONObject weatherObject = dayForecast.getJSONArray(OWM_WEATHER).getJSONObject(0);
- description = weatherObject.getString(OWM_DESCRIPTION);
-
- // Temperatures are in a child object called "temp". Try not to name variables
- // "temp" when working with temperature. It confuses everybody.
- JSONObject temperatureObject = dayForecast.getJSONObject(OWM_TEMPERATURE);
- double high = temperatureObject.getDouble(OWM_MAX);
- double low = temperatureObject.getDouble(OWM_MIN);
-
- highAndLow = formatHighLows(high, low);
- resultStrs[i] = day + " - " + description + " - " + highAndLow;
- }
-
-// for (String s: resultStrs) {
-// Log.v(LOG_TAG, "Forecast entry: " + s);
-// }
- return resultStrs;
- }
- }
}
projects / Sunshine.git / blobdiff