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The source code is released under:
Apache License
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package com.iyedb.sunshine; // w w w .j a va 2 s . c o m /** * Created by iyed on 27/07/2014. */ import android.content.Context; import android.content.SharedPreferences; import android.preference.PreferenceManager; import com.iyedb.sunshine.data.WeatherContract; import java.text.DateFormat; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; public class Utility { // Format used for storing dates in the database. ALso used for converting those strings // back into date objects for comparison/processing. public static final String DATE_FORMAT = "yyyyMMdd"; public static String getPreferredLocation(Context context) { SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context); /*return prefs.getString(context.getString(R.string.pref_location_key), context.getString(R.string.pref_location_default_val));*/ return prefs.getString(context.getString(R.string.pref_last_location), context.getString(R.string.pref_location_default_val)); } public static void saveLocationPref(Context ctx, String location) { String lastLocationPref = ctx.getString(R.string.pref_last_location); SharedPreferences.Editor editor = PreferenceManager.getDefaultSharedPreferences(ctx) .edit(); editor.putString(lastLocationPref, location); editor.apply(); } public static boolean isMetric(Context context) { SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context); return prefs.getString(context.getString(R.string.pref_unit_key), context.getString(R.string.pref_unit_metric)) .equals(context.getString(R.string.pref_unit_metric)); } /** * Helper method to convert the database representation of the date into something to display * to users. As classy and polished a user experience as "20140102" is, we can do better. * * @param context Context to use for resource localization * @param dateStr The db formatted date string, expected to be of the form specified * in Utility.DATE_FORMAT * @return a user-friendly representation of the date. */ public static String getFriendlyDayString(Context context, String dateStr) { // The day string for forecast uses the following logic: // For today: "Today, June 8" // For tomorrow: "Tomorrow" // For the next 5 days: "Wednesday" (just the day name) // For all days after that: "Mon Jun 8" Date todayDate = new Date(); String todayStr = WeatherContract.getDbDateString(todayDate); Date inputDate = WeatherContract.getDateFromDb(dateStr); // If the date we're building the String for is today's date, the format // is "Today, June 24" if (todayStr.equals(dateStr)) { String today = context.getString(R.string.today); int formatId = R.string.format_full_friendly_date; return String.format(context.getString( formatId, today, getFormattedMonthDay(context, dateStr))); } else { Calendar cal = Calendar.getInstance(); cal.setTime(todayDate); cal.add(Calendar.DATE, 7); String weekFutureString = WeatherContract.getDbDateString(cal.getTime()); if (dateStr.compareTo(weekFutureString) < 0) { // If the input date is less than a week in the future, just return the day name. return getDayName(context, dateStr); } else { // Otherwise, use the form "Mon Jun 3" SimpleDateFormat shortenedDateFormat = new SimpleDateFormat("EEE MMM dd"); return shortenedDateFormat.format(inputDate); } } } /** * Converts db date format to the format "Month day", e.g "June 24". * * @param context Context to use for resource localization * @param dateStr The db formatted date string, expected to be of the form specified * in Utility.DATE_FORMAT * @return The day in the form of a string formatted "December 6" */ public static String getFormattedMonthDay(Context context, String dateStr) { SimpleDateFormat dbDateFormat = new SimpleDateFormat(Utility.DATE_FORMAT); try { Date inputDate = dbDateFormat.parse(dateStr); SimpleDateFormat monthDayFormat = new SimpleDateFormat("MMMM dd"); String monthDayString = monthDayFormat.format(inputDate); return monthDayString; } catch (ParseException e) { e.printStackTrace(); return null; } } /** * Given a day, returns just the name to use for that day. * E.g "today", "tomorrow", "wednesday". * * @param context Context to use for resource localization * @param dateStr The db formatted date string, expected to be of the form specified * in Utility.DATE_FORMAT * @return */ public static String getDayName(Context context, String dateStr) { SimpleDateFormat dbDateFormat = new SimpleDateFormat(Utility.DATE_FORMAT); try { Date inputDate = dbDateFormat.parse(dateStr); Date todayDate = new Date(); // If the date is today, return the localized version of "Today" instead of the actual // day name. if (WeatherContract.getDbDateString(todayDate).equals(dateStr)) { return context.getString(R.string.today); } else { // If the date is set for tomorrow, the format is "Tomorrow". Calendar cal = Calendar.getInstance(); cal.setTime(todayDate); cal.add(Calendar.DATE, 1); Date tomorrowDate = cal.getTime(); if (WeatherContract.getDbDateString(tomorrowDate).equals( dateStr)) { return context.getString(R.string.tomorrow); } else { // Otherwise, the format is just the day of the week (e.g "Wednesday". SimpleDateFormat dayFormat = new SimpleDateFormat("EEEE"); return dayFormat.format(inputDate); } } } catch (ParseException e) { e.printStackTrace(); // It couldn't process the date correctly. return ""; } } @Deprecated static String formatTemperature(double temperature, boolean isMetric) { double temp; if ( !isMetric ) { temp = 9*temperature/5+32; } else { temp = temperature; } return String.format("%.0f", temp); } static String formatDate(String dateString) { Date date = WeatherContract.getDateFromDb(dateString); return DateFormat.getDateInstance().format(date); } public static String formatTemperature(Context context, double temperature, boolean isMetric) { double temp; if ( !isMetric ) { temp = 9*temperature/5+32; } else { temp = temperature; } return context.getString(R.string.format_temperature, temp); } public static String getFormattedWind(Context context, float windSpeed, float degrees) { int windFormat; if (isMetric(context)) { windFormat = R.string.format_wind_kmh; } else { windFormat = R.string.format_wind_mph; windSpeed = .621371192237334f * windSpeed; } // From wind direction in degrees, determine compass direction as a string (e.g NW) // You know what's fun, writing really long if/else statements with tons of possible // conditions. Seriously, try it! String direction = "Unknown"; if (degrees >= 337.5 || degrees < 22.5) { direction = "N"; } else if (degrees >= 22.5 && degrees < 67.5) { direction = "NE"; } else if (degrees >= 67.5 && degrees < 112.5) { direction = "E"; } else if (degrees >= 112.5 && degrees < 157.5) { direction = "SE"; } else if (degrees >= 157.5 && degrees < 202.5) { direction = "S"; } else if (degrees >= 202.5 && degrees < 247.5) { direction = "SW"; } else if (degrees >= 247.5 && degrees < 292.5) { direction = "W"; } else if (degrees >= 292.5 || degrees < 22.5) { direction = "NW"; } return String.format(context.getString(windFormat), windSpeed, direction).trim(); } /** * Helper method to provide the icon resource id according to the weather condition id returned * by the OpenWeatherMap call. * @param weatherId from OpenWeatherMap API response * @return resource id for the corresponding icon. -1 if no relation is found. */ public static int getIconResourceForWeatherCondition(int weatherId) { // Based on weather code data found at: // http://bugs.openweathermap.org/projects/api/wiki/Weather_Condition_Codes if (weatherId >= 200 && weatherId <= 232) { return R.drawable.ic_storm; } else if (weatherId >= 300 && weatherId <= 321) { return R.drawable.ic_light_rain; } else if (weatherId >= 500 && weatherId <= 504) { return R.drawable.ic_rain; } else if (weatherId == 511) { return R.drawable.ic_snow; } else if (weatherId >= 520 && weatherId <= 531) { return R.drawable.ic_rain; } else if (weatherId >= 600 && weatherId <= 622) { return R.drawable.ic_snow; } else if (weatherId >= 701 && weatherId <= 761) { return R.drawable.ic_fog; } else if (weatherId == 761 || weatherId == 781) { return R.drawable.ic_storm; } else if (weatherId == 800) { return R.drawable.ic_clear; } else if (weatherId == 801) { return R.drawable.ic_light_clouds; } else if (weatherId >= 802 && weatherId <= 804) { return R.drawable.ic_cloudy; } return -1; } /** * Helper method to provide the art resource id according to the weather condition id returned * by the OpenWeatherMap call. * @param weatherId from OpenWeatherMap API response * @return resource id for the corresponding image. -1 if no relation is found. */ public static int getArtResourceForWeatherCondition(int weatherId) { // Based on weather code data found at: // http://bugs.openweathermap.org/projects/api/wiki/Weather_Condition_Codes if (weatherId >= 200 && weatherId <= 232) { return R.drawable.art_storm; } else if (weatherId >= 300 && weatherId <= 321) { return R.drawable.art_light_rain; } else if (weatherId >= 500 && weatherId <= 504) { return R.drawable.art_rain; } else if (weatherId == 511) { return R.drawable.art_snow; } else if (weatherId >= 520 && weatherId <= 531) { return R.drawable.art_rain; } else if (weatherId >= 600 && weatherId <= 622) { return R.drawable.art_rain; } else if (weatherId >= 701 && weatherId <= 761) { return R.drawable.art_fog; } else if (weatherId == 761 || weatherId == 781) { return R.drawable.art_storm; } else if (weatherId == 800) { return R.drawable.art_clear; } else if (weatherId == 801) { return R.drawable.art_light_clouds; } else if (weatherId >= 802 && weatherId <= 804) { return R.drawable.art_clouds; } return -1; } }