Android程序研发源码Android UI界面漂亮的天气预报源码.zip

/** * */ package com.ty.weather; import java.io.IOException; import java.io.InputStreamReader; import java.io.Reader; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.StatusLine; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpGet; import org.apache.http.impl.client.DefaultHttpClient; import org.xmlpull.v1.XmlPullParser; import org.xmlpull.v1.XmlPullParserException; import org.xmlpull.v1.XmlPullParserFactory; import android.content.ContentResolver; import android.content.ContentValues; import android.content.Context; import android.database.Cursor; import android.net.Uri; import android.util.Log; import android.util.TimeFormatException; import com.ty.weather.ForecastProvider.WeatherWidgets; import com.ty.weather.util.ForecastEntity; import com.ty.weather.util.WidgetEntity; /** * @author 088926 * */ public class WebServiceHelper { private static final String TAG = "WebServiceHelper"; private static final String WEBSERVICE_URL = "http://www.google.com/ig/api?weather=%s&hl=zh-cn"; private static final String FORECAST_INFORMATION = "forecast_information"; private static final String CURRENT_CONDITIONS = "current_conditions"; private static final String FORECAST_CONDITIONS = "forecast_conditions"; private static final String PROBLEM_CAUSE = "problem_cause"; private static final String CITY = "city"; private static final String FORECAST_DATE = "forecast_date"; private static final String CONDITION = "condition"; private static final String TEMP_F = "temp_f"; private static final String TEMP_C = "temp_c"; private static final String HUMIDITY = "humidity"; private static final String ICON = "icon"; private static final String WIND_CONDITION = "wind_condition"; private static final String DAY_OF_WEEK = "day_of_week"; private static final String LOW = "low"; private static final String HIGH = "high"; public static void updateForecasts(Context context, Uri widgetUri) throws ForecastParseException { Log.d(TAG, "update the nowest forecast!"); Uri forecastUri = Uri.withAppendedPath(widgetUri, WeatherWidgets.FORECAST_END); ContentResolver resolver = context.getContentResolver(); Cursor cursor = null; String postalCode = null; try { cursor = resolver.query(widgetUri, new String[] { WidgetEntity.POSTALCODE }, null, null, null); if (cursor != null && cursor.moveToFirst()) { postalCode = cursor.getString(0); } } finally { if (cursor != null) { cursor.close(); } } // 获取天气信息 WidgetEntity widgetEntity = queryWebservice(postalCode); if (widgetEntity == null) { throw new ForecastParseException( "No forecasts found from webservice query"); } resolver.delete(forecastUri, null, null); ContentValues values = new ContentValues(); for (ForecastEntity forecast : widgetEntity.getDetails()) { values.clear(); values.put(ForecastEntity.DAYOFWEEK, forecast.getDayOfWeek()); values.put(ForecastEntity.HIGHT, forecast.getHight()); values.put(ForecastEntity.LOW, forecast.getLow()); values.put(ForecastEntity.ICON, forecast.getIcon()); values.put(ForecastEntity.CONDITION, forecast.getCondition()); Log.d(TAG, "insert detail forecast infomations:" + forecast.getDayOfWeek()); resolver.insert(forecastUri, values); } values.clear(); values.put(WidgetEntity.CITY, widgetEntity.getCity()); values.put(WidgetEntity.CONDITION, widgetEntity.getCondition()); values.put(WidgetEntity.FORECASTDATE, widgetEntity.getForecastDate()); values.put(WidgetEntity.HUMIDITY, widgetEntity.getHumidity()); values.put(WidgetEntity.ICON, widgetEntity.getIcon()); values.put(WidgetEntity.TEMPC, widgetEntity.getTempC()); values.put(WidgetEntity.TEMPF, widgetEntity.getTempF()); values.put(WidgetEntity.WINDCONDITION, widgetEntity.getWindCondition()); values.put(WidgetEntity.LAST_UPDATE_TIME, System.currentTimeMillis()); Log.d(TAG, "update the weather infomation"); resolver.update(widgetUri, values, null, null); } public static WidgetEntity queryWebservice(String postalCode) throws ForecastParseException { if (postalCode == null) { throw new ForecastParseException("can not covert to entity"); } Log.d(TAG, "uri:" + String.format(WEBSERVICE_URL, postalCode)); Reader responseReader; WidgetEntity widgetEntity = null; HttpClient client = new DefaultHttpClient(); HttpGet request = new HttpGet(String.format(WEBSERVICE_URL, postalCode)); try { Log.d(TAG, "get google's weather infomation"); HttpResponse response = client.execute(request); StatusLine status = response.getStatusLine(); Log.d(TAG, "Request returned status " + status); HttpEntity entity = response.getEntity(); responseReader = new InputStreamReader(entity.getContent(), "GB2312"); } catch (IOException e) { throw new ForecastParseException("Problem calling forecast API", e); } // If response found, send through to parser if (responseReader != null) { widgetEntity = parseResponse(responseReader); } return widgetEntity; } /** * 转换为实体 * * @param responseReader * @return */ private static WidgetEntity parseResponse(Reader responseReader) throws ForecastParseException { // TODO Auto-generated method stub Log.d(TAG, "conver xml to widgetEntity"); WidgetEntity widgetEntity = new WidgetEntity(); try { XmlPullParserFactory factory = XmlPullParserFactory.newInstance(); XmlPullParser xpp = factory.newPullParser(); String tagName = null; xpp.setInput(responseReader); int eventType = xpp.getEventType(); Log.d(TAG, "eventType:" + eventType); while (eventType != XmlPullParser.END_DOCUMENT) { //Log.d(TAG, "eventType:" + eventType); if (eventType == XmlPullParser.START_TAG) { tagName = xpp.getName(); Log.d(TAG, "tag Name:" + tagName); if (PROBLEM_CAUSE.equals(tagName)) { throw new ForecastParseException( "the city is non correct!"); } else if (FORECAST_INFORMATION.equals(tagName)) { dealWithInfomation(tagName, widgetEntity, xpp); } else if (CURRENT_CONDITIONS.equals(tagName)) { dealWithCurrentConditions(tagName, widgetEntity, xpp); } else if (FORECAST_CONDITIONS.equals(tagName)) { dealWithForecastConditions(tagName, widgetEntity, xpp); } } eventType = xpp.next(); } } catch (IOException e) { throw new ForecastParseException("Problem parsing XML forecast", e); } catch (XmlPullParserException e) { throw new ForecastParseException("Problem parsing XML forecast", e); } catch (TimeFormatException e) { throw new ForecastParseException("Problem parsing XML forecast", e); } Log.d(TAG, "covert xml to entity success"); return widgetEntity; } private static void dealWithForecastConditions(String name, WidgetEntity widgetEntity, XmlPullParser xpp) throws IOException, XmlPullParserException { // TODO Auto-generated method stub Log.d(TAG, "dealWithForecastConditions"); ForecastEntity forecast = new ForecastEntity(); xpp.next(); int eventType = xpp.getEventType(); String tagName = xpp.getName(); while ((!name.equals(tagName) || eventType != XmlPullParser.END_TAG) && eventType != XmlPullParser.END_DOCUMENT) { if (eventType == XmlPullParser.START_TAG) { if (tagName.equals(CONDITION)) { forecast.setCondition(xpp.getAttributeValue(null, "data")); } else if (tagName.equals(DAY_OF_WEEK)) { forecast.setDayOfWeek(xpp.getAttributeValue(null, "data")); } else if (tagName.equals(HIGH)) { forecast.setHight(Integer.parseInt(xpp.getAttributeValue(