WeatherUpdateService.java

package com.appassit.service;

import java.util.Date;
import java.util.Timer;
import java.util.TimerTask;

import org.androidannotations.annotations.EService;
import org.androidannotations.annotations.UiThread;

import android.app.PendingIntent;
import android.app.Service;
import android.appwidget.AppWidgetManager;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.IBinder;
import android.widget.RemoteViews;

import com.android.volley.Request;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.appassit.R;
import com.appassit.activitys.MainAppActivity_;
import com.appassit.activitys.SLAppication;
import com.appassit.common.Const;
import com.appassit.data.GsonWeatherRequest;
import com.appassit.data.RequestManager;
import com.appassit.db.SunDataHelper;
import com.appassit.model.SunModel;
import com.appassit.tools.DateUtil;
import com.appassit.tools.SharedPrefUtil;
import com.appassit.tools.WeatherUtil;

@EService
public class WeatherUpdateService extends Service {

	/** Action = tk.woppo.sunday.action.update_weather */
	public final static String ACTION_UPDATE_WEATHER = "tk.woppo.sunday.action.UPDATE_WEATHER";
	public final static String ACTION_SWITH_CITY = "tk.woppo.sunday.action.SWITH_CITY";
	public final static String ACTION_NEXT_CITY = "tk.woppo.sunday.action.NEXT_CITY";
	public final static String ACTION_TIME_SET = "android.intent.action.TIME_SET";

	protected final static String TAG = "WeatherUpdateService";

	protected final static int UPDATE_DELAY = 1;
	protected final static int UPDATE_PERIOD = 3600 * 1000;

	private SunDataHelper mDB;

	private SunModel mSunModel;

	private RemoteViews remoteView;

	@Override
	public IBinder onBind(Intent intent) {
		return null;
	}

	@Override
	public void onCreate() {
		super.onCreate();

		mDB = new SunDataHelper(this);

		remoteView = new RemoteViews(getPackageName(), R.layout.widget_4x2);

		new Timer().scheduleAtFixedRate(new TimerTask() {
			@Override
			public void run() {
				getWeatherFormNet(getNextWeatherCode(SLAppication.getCurCityIndex()));
			}
		}, UPDATE_DELAY, UPDATE_PERIOD);

	}

	private String getNextWeatherCode(int index) {
		return SLAppication.getMyArea().get(index % SLAppication.getMyArea().size()).getWeatherCode();
	}

	private void getWeather(String id) {
		SunModel sunModel = mDB.query(id);
		if (mSunModel == null) {
			getWeatherFormNet(id);
		} else {
			mSunModel = sunModel;
			sendUpdateWeather();
			;
		}
	}

	private void getWeatherFormNet(String id) {
		executeRequest(new GsonWeatherRequest(Const.WEATER_INFO_URL + "?app=tq360&_jsonp=renderData&code=" + id, SunModel.SunRequestData.class, responseListener(),
				errorListener()));
	}

	protected void executeRequest(Request<?> request) {
		RequestManager.addRequest(request, this);
	}

	/**
	 * 获取数据成功回调
	 * 
	 * @return
	 */
	private Response.Listener<SunModel.SunRequestData> responseListener() {

		return new Response.Listener<SunModel.SunRequestData>() {
			@Override
			public void onResponse(SunModel.SunRequestData sunRequestData) {
				mSunModel = sunRequestData.data;
				sendUpdateWeather();
			}
		};
	}

	/**
	 * 获取数据错误回调
	 * 
	 * @return
	 */
	protected Response.ErrorListener errorListener() {

		return new Response.ErrorListener() {
			@Override
			public void onErrorResponse(VolleyError volleyError) {
			}
		};
	}

	// 发送广播，更新天气
	private void sendUpdateWeather() {
		sendBroadcast(new Intent(ACTION_UPDATE_WEATHER));
	}

	@UiThread
	void updateTime() {

		Date date = new Date();
		// 定义SimpleDateFormat对象
		remoteView.setTextViewText(R.id.tv_provider_time, DateUtil.getCurTime());
		remoteView.setTextViewText(R.id.tv_provider_week, DateUtil.getCurWeek());
		remoteView.setOnClickPendingIntent(R.id.rl_provider_widget, PendingIntent.getActivity(this, 0, new Intent(this, MainAppActivity_.class), 0));
		remoteView.setOnClickPendingIntent(R.id.ll_provider_right, PendingIntent.getBroadcast(this, 1, new Intent(ACTION_NEXT_CITY), 0));
		ComponentName componentName = new ComponentName(getApplication(), WeatherWidget.class);
		AppWidgetManager.getInstance(getApplication()).updateAppWidget(componentName, remoteView);
	}

	@UiThread
	void updateWeather() {

		if (mSunModel != null) {
			if (mSunModel.realtime.cityName != null)
				remoteView.setTextViewText(R.id.tv_provider_city, mSunModel.realtime.cityName);
			remoteView.setTextViewText(R.id.tv_provider_temp, mSunModel.realtime.weather.temp + "℃");
			remoteView.setTextViewText(R.id.tv_provider_weather, mSunModel.realtime.weather.info);
			remoteView.setImageViewResource(R.id.iv_provider_weather, WeatherUtil.getIcon(mSunModel.realtime.weather.info));
		}

		ComponentName componentName = new ComponentName(getApplication(), WeatherWidget.class);
		AppWidgetManager.getInstance(getApplication()).updateAppWidget(componentName, remoteView);
	}

	// 广播接收者去接收系统每分钟的提示广播，来更新时间
	private BroadcastReceiver mTimePickerBroadcast = new BroadcastReceiver() {

		@Override
		public void onReceive(Context context, Intent intent) {
			if (intent.getAction().equals(ACTION_UPDATE_WEATHER)) {
				updateWeather();
			} else if (intent.getAction().equals(ACTION_SWITH_CITY)) {
				// LogUtil.i(TAG, "swith city " + App.getMyArea().get(App.getCurCityIndex()).getCityName());
				getWeather(getNextWeatherCode(SLAppication.getCurCityIndex()));
			} else if (intent.getAction().equals(ACTION_NEXT_CITY)) {
				// LogUtil.i(TAG, "next city");
				SLAppication.setCurCityIndex((SLAppication.getCurCityIndex() + 1) % SLAppication.getMyArea().size());
				getWeather(getNextWeatherCode(SLAppication.getCurCityIndex()));
			} else {
				updateTime();
			}
		}
	};

	// 注册事件，注（只能在代码中注册）
	private void registerReceiver() {
		IntentFilter updateIntent = new IntentFilter();
		updateIntent.addAction(ACTION_UPDATE_WEATHER);
		updateIntent.addAction(ACTION_SWITH_CITY);
		updateIntent.addAction(ACTION_NEXT_CITY);
		updateIntent.addAction(ACTION_TIME_SET);
		updateIntent.addAction(Intent.ACTION_TIME_TICK);
		updateIntent.addAction(Intent.ACTION_DATE_CHANGED);
		updateIntent.addAction(Intent.ACTION_TIMEZONE_CHANGED);
		registerReceiver(mTimePickerBroadcast, updateIntent);
	}

	@Override
	public int onStartCommand(Intent intent, int flags, int startId) {

		registerReceiver();
		updateTime();
		return super.onStartCommand(intent, START_STICKY, startId);
	}

	@Override
	public void onDestroy() {
		// 注销广播
		if (mTimePickerBroadcast != null) {
			unregisterReceiver(mTimePickerBroadcast);
		}
		if (SharedPrefUtil.getBoolean(Const.CONFIG_NO_KILL, false))
			// 被系统干掉后，服务重启
			WeatherUpdateService_.intent(getApplicationContext()).start();
		super.onDestroy();
	}
}