Android-app-DwWeather天气预报
来源：互联网 发布：sql server 2008怎么用 编辑：程序博客网 时间：2024/05/16 06:16
这个Demo可以从全国天气预报网上获取实时天气信息，能够显示省、市、县级的天气情况。主要涉及的知识点有数据库的使用、JSON数据的解析、Service、广播的使用以及MVC设计模式的应用，详情见源码。
一、布局文件
1.weather_layout.xml
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <RelativeLayout android:layout_width="match_parent" android:layout_height="50dp" android:background="#484E61" > <Button android:id="@+id/switch_city" android:layout_width="30dp" android:layout_height="30dp" android:layout_centerVertical="true" android:layout_marginLeft="10dp" android:background="@android:drawable/ic_input_get" ></Button> <TextView android:id="@+id/city_name" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerInParent="true" android:textColor="#fff" android:textSize="24sp" /> <Button android:id="@+id/refresh_weather" android:layout_width="30dp" android:layout_height="30dp" android:layout_centerVertical="true" android:layout_alignParentRight="true" android:layout_marginRight="10dp" android:background="@android:drawable/ic_menu_rotate" ></Button> </RelativeLayout> <RelativeLayout android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="1" android:background="#27A5F9" > <TextView android:id="@+id/publish_text" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentRight="true" android:layout_marginRight="10dp" android:layout_marginTop="10dp" android:textColor="#FFF" android:textSize="18sp" /> <LinearLayout android:id="@+id/weather_info_layout" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerInParent="true" android:orientation="vertical" > <TextView android:id="@+id/current_date" android:layout_width="wrap_content" android:layout_height="40dp" android:gravity="center" android:textColor="#FFF" android:textSize="18sp" /> <TextView android:id="@+id/weather_desp" android:layout_width="wrap_content" android:layout_height="60dp" android:layout_gravity="center_horizontal" android:gravity="center" android:textColor="#FFF" android:textSize="40sp" /> <LinearLayout android:layout_width="wrap_content" android:layout_height="60dp" android:layout_gravity="center_horizontal" android:orientation="horizontal" > <TextView android:id="@+id/temp1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_vertical" android:textColor="#FFF" android:textSize="40sp" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_vertical" android:layout_marginLeft="10dp" android:layout_marginRight="10dp" android:text="~" android:textColor="#FFF" android:textSize="40sp" /> <TextView android:id="@+id/temp2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_vertical" android:textColor="#FFF" android:textSize="40sp" /> </LinearLayout> </LinearLayout> </RelativeLayout></LinearLayout>2.choose_area.xml
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <RelativeLayout android:layout_width="match_parent" android:layout_height="50dp" android:background="#484E61"> <TextView android:id="@+id/title_text" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerInParent="true" android:textColor="#fff" android:textSize="24sp"/> </RelativeLayout> <ListView android:id="@+id/list_view" android:layout_width="match_parent" android:layout_height="match_parent"> </ListView></LinearLayout>二、界面
1.ChooseAreaActivity.java
package com.dw.dwweather.activity;import java.util.ArrayList;import java.util.List;import com.dw.dwweather.db.DwWeatherDB;import com.dw.dwweather.model.City;import com.dw.dwweather.model.County;import com.dw.dwweather.model.Province;import com.dw.dwweather.util.HttpCallbackListener;import com.dw.dwweather.util.HttpUtil;import com.dw.dwweather.util.Utility;import android.app.Activity;import android.app.ProgressDialog;import android.content.Intent;import android.content.SharedPreferences;import android.os.Bundle;import android.preference.PreferenceManager;import android.text.TextUtils;import android.view.View;import android.view.Window;import android.widget.AdapterView;import android.widget.AdapterView.OnItemClickListener;import android.widget.ArrayAdapter;import android.widget.ListView;import android.widget.TextView;import android.widget.Toast;public class ChooseAreaActivity extends Activity { public static final int LEVEL_PROVINCE = 0; public static final int LEVEL_CITY = 1; public static final int LEVEL_COUNTY = 2; private ProgressDialog progressDialog; private TextView titleText; private ListView listView; private ArrayAdapter<String> adapter; private DwWeatherDB dwWeatherDB; private List<String> dataList = new ArrayList<String>(); private List<Province> provinceList; private List<City> cityList; private List<County> countyList; private Province selectedProvince; private City selectedCity; private int currentLevel; private boolean isFromWeatherActivity; @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); isFromWeatherActivity=getIntent().getBooleanExtra("from_weather_activity", false); SharedPreferences prefs=PreferenceManager.getDefaultSharedPreferences(this); //已经选择了城市而且不是从weatherActivity跳转过来，才会直接跳转到Weather、Activity if(prefs.getBoolean("city_selected", false)&&!isFromWeatherActivity){ Intent intent=new Intent(this, WeatherActivity.class); startActivity(intent); finish(); return; } requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.choose_area); listView = (ListView) findViewById(R.id.list_view); titleText = (TextView) findViewById(R.id.title_text); adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, dataList); listView.setAdapter(adapter); dwWeatherDB=DwWeatherDB.getInstance(this); listView.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> arg0, View view, int index, long arg3) { // TODO Auto-generated met if (currentLevel == LEVEL_PROVINCE) { selectedProvince = provinceList.get(index); queryCities(); } else if (currentLevel == LEVEL_CITY) { selectedCity = cityList.get(index); queryCounties(); }else if(currentLevel == LEVEL_COUNTY){ String countyCode=countyList.get(index).getCountyCode(); Intent intent=new Intent(ChooseAreaActivity.this, WeatherActivity.class); intent.putExtra("county_code", countyCode); startActivity(intent); finish(); } } }); queryProvinces();//加载省级数据 } /** * 查询全国所有的省份，优先从数据库查询，如果数据库上没有查询到再去服务器上查询 */ private void queryProvinces() { // TODO Auto-generated method stub System.out.println("进入queryProvince方法"); provinceList = dwWeatherDB.loadProvinces(); System.out.println(provinceList.size()+"----------"); if (provinceList.size() > 0) { dataList.clear(); for (Province province : provinceList) { dataList.add(province.getProvinceName()); System.out.println(dataList.toString()); } adapter.notifyDataSetChanged();// 刷新 listView.setSelection(0); titleText.setText("中国"); currentLevel = LEVEL_PROVINCE; } else { queryFromServer(null, "province"); System.out.println("服务器查询方法执行完毕"); } System.out.println("queryProvince方法执行完毕"); } /** * 查询全国所有的市，优先从数据库查询，如果数据库上没有查询到再去服务器上查询 */ private void queryCities() { // TODO Auto-generated method stub cityList = dwWeatherDB.loadCities(selectedProvince.getId()); if (cityList.size() > 0) { dataList.clear(); for (City city : cityList) { dataList.add(city.getCityName()); } adapter.notifyDataSetChanged();// 刷新 listView.setSelection(0); titleText.setText(selectedProvince.getProvinceName()); currentLevel = LEVEL_CITY; } else { queryFromServer(selectedProvince.getProvinceCode(), "city"); } } private void queryCounties() { // TODO Auto-generated method stub countyList = dwWeatherDB.loadCounties(selectedCity.getId()); if (countyList.size() > 0) { dataList.clear(); for (County county : countyList) { dataList.add(county.getCountyName()); } adapter.notifyDataSetChanged();// 刷新 listView.setSelection(0); titleText.setText(selectedProvince.getProvinceName()); currentLevel = LEVEL_CITY; } else { queryFromServer(selectedCity.getCityCode(), "county"); } } /** * 根据传入的代号和类型从服务器上查询市县数据 * * @param object * @param string */ private void queryFromServer(final String code, final String type) { // TODO Auto-generated method stub String address; if (!TextUtils.isEmpty(code)) { address = "http://www.weather.com.cn/data/list3/city" + code + ".xml"; } else { address = "http://www.weather.com.cn/data/list3/city.xml"; } showProgressDialog(); HttpUtil.sendHttpRequest(address, new HttpCallbackListener() { @Override public void onFinish(String response) { // TODO Auto-generated method stub boolean result = false; if ("province".equals(type)) { result = Utility.handleProvincesResponse(dwWeatherDB, response); } else if ("city".equals(type)) { result = Utility.handleCitiesResponse(dwWeatherDB, response, selectedProvince.getId()); } else if ("county".equals(type)) { result = Utility.handleCountiesResponse(dwWeatherDB, response, selectedCity.getId()); } if (result) { // 通过runOnUiThread方法回到主线程处理逻辑 runOnUiThread(new Runnable() { @Override public void run() { // TODO Auto-generated method stub closeProgressDialog(); if ("province".equals(type)) { queryProvinces(); } else if ("city".equals(type)) { queryCities(); } else if ("county".equals(type)) { queryCounties(); } } }); } } @Override public void onError(Exception e) { // TODO Auto-generated method stub runOnUiThread(new Runnable() { @Override public void run() { // TODO Auto-generated method stub closeProgressDialog(); Toast.makeText(ChooseAreaActivity.this, "加载失败！", Toast.LENGTH_SHORT).show(); } }); } }); } /** * 显示加载进度 */ private void showProgressDialog() { // TODO Auto-generated method stub if (progressDialog == null) { progressDialog = new ProgressDialog(this); progressDialog.setMessage("正在玩命加载..."); progressDialog.setCanceledOnTouchOutside(false); } progressDialog.show(); } private void closeProgressDialog() { if (progressDialog != null) { progressDialog.dismiss(); } } /** * 根据当前的级别来判断是返回市列表、省列表还是直接退出 */ @Override public void onBackPressed() { // TODO Auto-generated method stub if (currentLevel == LEVEL_COUNTY) { queryCities(); } else if (currentLevel == LEVEL_CITY) { queryProvinces(); } else { if(isFromWeatherActivity){ Intent intent=new Intent(this, WeatherActivity.class); startActivity(intent); } finish(); } }}2.WeatherActivity.java
package com.dw.dwweather.activity;import com.dw.dwweather.service.AutoUpdateService;import com.dw.dwweather.util.HttpCallbackListener;import com.dw.dwweather.util.HttpUtil;import com.dw.dwweather.util.Utility;import android.app.Activity;import android.content.Intent;import android.content.SharedPreferences;import android.os.Bundle;import android.preference.PreferenceManager;import android.text.TextUtils;import android.view.View;import android.view.View.OnClickListener;import android.view.Window;import android.widget.Button;import android.widget.LinearLayout;import android.widget.TextView;public class WeatherActivity extends Activity implements OnClickListener { private LinearLayout weatherInfoLayout; private TextView cityNameText; private TextView publishText; private TextView weatherDespText; private TextView temp1Text; private TextView temp2Text; private TextView curretnDateText; private Button switchCity; private Button refreshWeather; @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.weather_layout); weatherInfoLayout=(LinearLayout) findViewById(R.id.weather_info_layout); cityNameText=(TextView) findViewById(R.id.city_name); publishText=(TextView) findViewById(R.id.publish_text); weatherDespText=(TextView) findViewById(R.id.weather_desp); temp1Text=(TextView) findViewById(R.id.temp1); temp2Text=(TextView) findViewById(R.id.temp2); curretnDateText=(TextView) findViewById(R.id.current_date); switchCity=(Button) findViewById(R.id.switch_city); refreshWeather=(Button) findViewById(R.id.refresh_weather); String countyCode=getIntent().getStringExtra("county_code"); if(!TextUtils.isEmpty(countyCode)){ publishText.setText("同步中..."); weatherInfoLayout.setVisibility(View.INVISIBLE); cityNameText.setVisibility(View.INVISIBLE); queryWeatherCode(countyCode); } switchCity.setOnClickListener(this); refreshWeather.setOnClickListener(this); } @Override public void onClick(View v) { // TODO Auto-generated method stub switch(v.getId()){ case R.id.switch_city: Intent intent=new Intent(this, ChooseAreaActivity.class); intent.putExtra("from_weather_activity", true); startActivity(intent); finish(); break; case R.id.refresh_weather: publishText.setText("同步中..."); SharedPreferences prefs=PreferenceManager.getDefaultSharedPreferences(this); String weatherCode=prefs.getString("weather_code", ""); if(!TextUtils.isEmpty(weatherCode)){ queryWeatherInfo(weatherCode); } break; default: break; } } /** * 查询天气代号所对应的天气 * @param countyCode */ private void queryWeatherCode(String countyCode) { // TODO Auto-generated method stub String address="http://www.weather.com.cn/data/list3/city"+countyCode+".xml"; queryFromServer(address,"countyCode"); } /** * 查询县级代号对应的天气 * @param weatherCode */ private void queryWeatherInfo(String weatherCode) { // TODO Auto-generated method stub String address="http://www.weather.com.cn/data/cityinfo"+weatherCode+".html"; queryFromServer(address,"weatherCode"); } /** * 根据传入的地址和类型向服务器查询天气代号或者天气信息 * @param address * @param string */ private void queryFromServer(final String address, final String type) { // TODO Auto-generated method stub HttpUtil.sendHttpRequest(address, new HttpCallbackListener() { @Override public void onFinish(final String response) { // TODO Auto-generated method stub if("countyCode".equals(type)){ if(!TextUtils.isEmpty(response)){ String[] array=response.split("\\|"); if(array!=null&&array.length==2){ String weatherCode=array[1]; queryWeatherInfo(weatherCode); } } }else if("weatherCode".equals(type)){ //处理从服务器返回的天气信息 Utility.handleWeatherResponse(WeatherActivity.this, response); runOnUiThread(new Runnable() { @Override public void run() { // TODO Auto-generated method stub showWeather(); } }); } } @Override public void onError(Exception e) { // TODO Auto-generated method stub runOnUiThread(new Runnable() { @Override public void run() { // TODO Auto-generated method stub publishText.setText("同步失败"); } }); } }); } /** * 从sharedPreferences中读取存储的天气信息，并显示到界面上 */ private void showWeather() { // TODO Auto-generated method stub SharedPreferences prefs=PreferenceManager.getDefaultSharedPreferences(this); cityNameText.setText(prefs.getString("city_name", "")); temp1Text.setText(prefs.getString("temp1", "")); temp2Text.setText(prefs.getString("temp2", "")); weatherDespText.setText(prefs.getString("weather_desp", "")); publishText.setText(prefs.getString("publish_time", "")+"发布"); curretnDateText.setText(prefs.getString("current_date", "")); weatherInfoLayout.setVisibility(View.INVISIBLE); cityNameText.setVisibility(View.INVISIBLE); Intent intent=new Intent(this, AutoUpdateService.class); startService(intent); }}三、数据库操作
1.DwWeatherOpenHelper.java
package com.dw.dwweather.db;import android.content.Context;import android.database.sqlite.SQLiteDatabase;import android.database.sqlite.SQLiteDatabase.CursorFactory;import android.database.sqlite.SQLiteOpenHelper;public class DwWeatherOpenHelper extends SQLiteOpenHelper { public DwWeatherOpenHelper(Context context, String name, CursorFactory factory, int version) { super(context, name, factory, version); // TODO Auto-generated constructor stub } public static final String CREATE_PROVINCE="create table Province (" +"id integer primary key autoincrement," +"province_name text," +"province_code text)"; public static final String CREATE_CITY="create table City (" +"id integer primary key autoincrement," +"city_name text," +"city_code text" +"city_id integer)"; public static final String CREATE_COUNTY="create table County (" +"id integer primary key autoincrement," +"county_name text," +"county_code text" +"city_id integer)"; @Override public void onCreate(SQLiteDatabase db) { // TODO Auto-generated method stub db.execSQL(CREATE_PROVINCE); db.execSQL(CREATE_CITY); db.execSQL(CREATE_COUNTY); } @Override public void onUpgrade(SQLiteDatabase arg0, int arg1, int arg2) { // TODO Auto-generated method stub }}2.DwWeatherDB.java
package com.dw.dwweather.db;import java.util.ArrayList;import java.util.List;import com.dw.dwweather.model.City;import com.dw.dwweather.model.County;import com.dw.dwweather.model.Province;import android.content.ContentValues;import android.content.Context;import android.database.Cursor;import android.database.sqlite.SQLiteDatabase;public class DwWeatherDB { public static final String DB_NAME="dw_weather"; public static final int VERSION=1; private static DwWeatherDB dwWeatherDB; private SQLiteDatabase db; /** * 构造方法私有化 * @param context */ private DwWeatherDB(Context context) { // TODO Auto-generated constructor stub DwWeatherOpenHelper dbHelper=new DwWeatherOpenHelper(context, DB_NAME, null, VERSION); db=dbHelper.getWritableDatabase(); } /** * 获取DwWeatherDB实例 * @param context * @return */ public synchronized static DwWeatherDB getInstance(Context context){ if(dwWeatherDB==null){ dwWeatherDB=new DwWeatherDB(context); } return dwWeatherDB; } /** * 将Province实例存储到数据库 * @param province */ public void saveProvince(Province province){ if(province!=null){ ContentValues values=new ContentValues(); values.put("province_name", province.getProvinceName()); values.put("province_code", province.getProvinceCode()); db.insert("Province", null, values); } } /** * 从数据库获取全国所有的省份信息 * @return */ public List<Province> loadProvinces(){ System.out.println("进入loadProvinces方法"); List<Province> list=new ArrayList<Province>(); Cursor cursor=db.query("Province", null, null, null, null, null, null); if(cursor.moveToFirst()){ do { Province province=new Province(); province.setId(cursor.getInt(cursor.getColumnIndex("id"))); province.setProvinceName(cursor.getString(cursor.getColumnIndex("province_name"))); province.setProvinceCode(cursor.getString(cursor.getColumnIndex("province_code"))); list.add(province); } while (cursor.moveToNext()); } System.out.println("loadProvinces方法执行完毕"); return list; } /** * 将City实例存储到数据库 * @param province */ public void saveCity(City city){ if(city!=null){ ContentValues values=new ContentValues(); values.put("city_name", city.getCityName()); values.put("city_code", city.getCityCode()); values.put("province_id", city.getProvinceId()); db.insert("City", null, values); } } /** * 从数据库读取某省份下所有的城市信息 * @param provinceId * @return */ public List<City> loadCities(int provinceId){ List<City> list=new ArrayList<City>(); Cursor cursor=db.query("City", null, "province_id=?", new String[]{String.valueOf(provinceId)}, null,null,null); if(cursor.moveToFirst()){ do { City city=new City(); city.setId(cursor.getInt(cursor.getColumnIndex("id"))); city.setCityName(cursor.getString(cursor.getColumnIndex("city_name"))); city.setCityCode(cursor.getString(cursor.getColumnIndex("city_code"))); city.setProvinceId(provinceId); list.add(city); } while (cursor.moveToNext()); } return list; } /** * 将County实例存储到数据库 * @param province */ public void saveCounty(County county){ if(county!=null){ ContentValues values=new ContentValues(); values.put("county_name", county.getCountyName()); values.put("county_code", county.getCountyCode()); values.put("city_id", county.getCityId()); db.insert("County", null, values); } } /** * 从数据库读取某省份下某城市下所有县城信息 * @param provinceId * @return */ public List<County> loadCounties(int cityId){ List<County> list=new ArrayList<County>(); Cursor cursor=db.query("County", null, "city_id=?", new String[]{String.valueOf(cityId)}, null,null,null); if(cursor.moveToFirst()){ do { County county=new County(); county.setId(cursor.getInt(cursor.getColumnIndex("id"))); county.setCountyName(cursor.getString(cursor.getColumnIndex("county_name"))); county.setCountyCode(cursor.getString(cursor.getColumnIndex("county_code"))); county.setCityId(cityId); list.add(county); } while (cursor.moveToNext()); } return list; }}四、地区模型层
1.City.java
package com.dw.dwweather.model;public class City { private int id; private String cityName; private String cityCode; private int provinceId; public int getId() { return id; } public void setId(int id) { this.id = id; } public String getCityName() { return cityName; } public void setCityName(String cityName) { this.cityName = cityName; } public String getCityCode() { return cityCode; } public void setCityCode(String cityCode) { this.cityCode = cityCode; } public int getProvinceId() { return provinceId; } public void setProvinceId(int provinceId) { this.provinceId = provinceId; }}2.County.java
package com.dw.dwweather.model;public class County { private int id; private int cityId; private String countyName; private String countyCode; public int getId() { return id; } public void setId(int id) { this.id = id; } public int getCityId() { return cityId; } public void setCityId(int cityId) { this.cityId = cityId; } public String getCountyName() { return countyName; } public void setCountyName(String countyName) { this.countyName = countyName; } public String getCountyCode() { return countyCode; } public void setCountyCode(String countyCode) { this.countyCode = countyCode; }}3.Province.java
package com.dw.dwweather.model;public class Province { private int id; private String provinceName; private String provinceCode; public int getId() { return id; } public void setId(int id) { this.id = id; } public String getProvinceName() { return provinceName; } public void setProvinceName(String provinceName) { this.provinceName = provinceName; } public String getProvinceCode() { return provinceCode; } public void setProvinceCode(String provinceCode) { this.provinceCode = provinceCode; }}五、更新广播与更新服务
1.AutoUpdateReceiver.java
package com.dw.dwweather.receiver;import com.dw.dwweather.service.AutoUpdateService;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;public class AutoUpdateReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { // TODO Auto-generated method stub Intent i=new Intent(context, AutoUpdateService.class); context.startService(i); }}2.AutoUpdateService.java
package com.dw.dwweather.service;import com.dw.dwweather.receiver.AutoUpdateReceiver;import com.dw.dwweather.util.HttpCallbackListener;import com.dw.dwweather.util.HttpUtil;import com.dw.dwweather.util.Utility;import android.app.AlarmManager;import android.app.PendingIntent;import android.app.Service;import android.content.Intent;import android.content.SharedPreferences;import android.os.IBinder;import android.os.SystemClock;import android.preference.PreferenceManager;public class AutoUpdateService extends Service { @Override public IBinder onBind(Intent arg0) { // TODO Auto-generated method stub return null; } @Override public int onStartCommand(Intent intent, int flags, int startId) { // TODO Auto-generated method stub new Thread(new Runnable() { @Override public void run() { // TODO Auto-generated method stub updateWeather(); } }).start(); AlarmManager manager=(AlarmManager) getSystemService(ALARM_SERVICE); int time=8*60*60*1000; long triggerAtTime=SystemClock.elapsedRealtime()+time; Intent i=new Intent(this, AutoUpdateReceiver.class); PendingIntent pi=PendingIntent.getBroadcast(this, 0, i, 0); manager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, triggerAtTime, pi); return super.onStartCommand(intent, flags, startId); }/** * 更新天气信息 */ private void updateWeather() { // TODO Auto-generated method stub SharedPreferences prefs=PreferenceManager.getDefaultSharedPreferences(this); String weatherCode=prefs.getString("weather_code", ""); String address="http://www.weather.com.cn/data/cityinfo/"+weatherCode+".html"; HttpUtil.sendHttpRequest(address, new HttpCallbackListener() { @Override public void onFinish(String response) { // TODO Auto-generated method stub Utility.handleWeatherResponse(AutoUpdateService.this, response); } @Override public void onError(Exception e) { // TODO Auto-generated method stub e.printStackTrace(); } }); }}六、工具类
1.HttpCallbackListener.java
package com.dw.dwweather.util;public interface HttpCallbackListener { void onFinish(String response); void onError(Exception e);}2.HttpUtil.java
package com.dw.dwweather.util;import java.io.BufferedReader;import java.io.InputStream;import java.io.InputStreamReader;import java.net.HttpURLConnection;import java.net.URL;public class HttpUtil { public static void sendHttpRequest(final String address,final HttpCallbackListener listener){ new Thread(new Runnable() { @Override public void run() { // TODO Auto-generated method stub HttpURLConnection connection=null; try { URL url=new URL(address); connection=(HttpURLConnection) url.openConnection(); connection.setRequestMethod("GET"); connection.setConnectTimeout(8000); connection.setReadTimeout(8000); InputStream in=connection.getInputStream(); BufferedReader reader=new BufferedReader(new InputStreamReader(in)); StringBuilder response=new StringBuilder(); String line; while (listener!=null) { //回调onFinish方法 listener.onFinish(response.toString()); } } catch (Exception e) { // TODO: handle exception if(listener!=null){ listener.onError(e); } }finally{ if(connection!=null){ connection.disconnect(); } } } }).start(); }}3.Utility.java
package com.dw.dwweather.util;import java.text.SimpleDateFormat;import java.util.Date;import java.util.Locale;import org.json.JSONException;import org.json.JSONObject;import android.content.Context;import android.content.SharedPreferences;import android.preference.PreferenceManager;import android.text.TextUtils;import com.dw.dwweather.db.DwWeatherDB;import com.dw.dwweather.model.City;import com.dw.dwweather.model.County;import com.dw.dwweather.model.Province;public class Utility { /** * 解析和处理服务器返回的省级数据 */ public synchronized static boolean handleProvincesResponse( DwWeatherDB dwWeatherDB, String response) { if (!TextUtils.isEmpty(response)) { String[] allProvinces = response.split(","); if (allProvinces != null && allProvinces.length > 0) { for (String p : allProvinces) { String[] array = p.split("\\|"); Province province = new Province(); province.setProvinceCode(array[0]); province.setProvinceName(array[1]); // 将解析处理的数据存储到Procince表 dwWeatherDB.saveProvince(province); } return true; } } return false; } /** * 解析和处理服务器返回的市级数据 */ public synchronized static boolean handleCitiesResponse( DwWeatherDB dwWeatherDB, String response, int provinceId) { if (!TextUtils.isEmpty(response)) { String[] allCities = response.split(","); if (allCities != null && allCities.length > 0) { for (String c : allCities) { String[] array = c.split("\\|"); City city = new City(); city.setCityCode(array[0]); city.setCityName(array[1]); city.setProvinceId(provinceId); // 将解析处理的数据存储到Procince表 dwWeatherDB.saveCity(city); } return true; } } return false; } /** * 解析和处理服务器返回的级数据 */ public synchronized static boolean handleCountiesResponse( DwWeatherDB dwWeatherDB, String response, int cityId) { if (!TextUtils.isEmpty(response)) { String[] allCounties = response.split(","); if (allCounties != null && allCounties.length > 0) { for (String c : allCounties) { String[] array = c.split("\\|"); County county = new County(); county.setCountyCode(array[0]); county.setCountyName(array[1]); county.setCityId(cityId); // 将解析处理的数据存储到Procince表 dwWeatherDB.saveCounty(county); } return true; } } return false; } /** * 解析服务器返回的json数据，并将解析处理的数据存储到本地 */ public static void handleWeatherResponse(Context context, String response) { try { JSONObject jsonObject = new JSONObject(response); JSONObject weatherInfo = jsonObject.getJSONObject("weatherinfo"); String cityName = weatherInfo.getString("city"); String weatherCode = weatherInfo.getString("cityid"); String temp1 = weatherInfo.getString("temp1"); String temp2 = weatherInfo.getString("temp2"); String weatherDesp = weatherInfo.getString("weather"); String publishTime = weatherInfo.getString("ptime"); saveWeatherInfo(context, cityName, weatherCode, temp1, temp2, weatherDesp, publishTime); } catch (JSONException e) { // TODO: handle exception e.printStackTrace(); } } /** * 将服务器返回的所有天气信息存储到sharedPreference文件 * * @param context * @param cityName * @param weatherCode * @param temp1 * @param temp2 * @param weatherDesp * @param publishTime */ public static void saveWeatherInfo(Context context, String cityName, String weatherCode, String temp1, String temp2, String weatherDesp, String publishTime) { // TODO Auto-generated method stub SimpleDateFormat sdf = new SimpleDateFormat("yyyy年M月d日", Locale.CHINA); SharedPreferences.Editor editor = PreferenceManager .getDefaultSharedPreferences(context).edit(); editor.putBoolean("city_selected", true); editor.putString("city_name", cityName); editor.putString("weather_code", weatherCode); editor.putString("temp1", temp1); editor.putString("temp2", temp2); editor.putString("weather_desp", weatherDesp); editor.putString("publish_time", publishTime); editor.putString("current_date", sdf.format(new Date())); editor.commit(); }}完整项目见Github (https://github.com/Arthur0213/DwWeather)
0 0
- Android-app-DwWeather天气预报
- Android天气预报app
- Android天气预报app源码
- App天气预报
- Android上实现一个简单的天气预报APP(十五) 发布天气预报APP
- Android上实现一个简单的天气预报APP(十二) 未来三天的天气预报
- Android app 天气预报简介及要求功能实现
- android基础学习综合实例——天气预报App
- Android 简易版天气预报app的实现（1）
- Android 简易版天气预报app的现实（2）
- Android 简易版天气预报app的现实（3）
- Android 简易版天气预报app的现实（4）
- Android 简易版天气预报app的实现（改进版）
- Android上实现一个简单的天气预报APP(一) 设计
- Android开源天气预报app - 清新小天气
- 基于Android开发的天气预报app(源码下载)
- 天气预报app简易版
- 简单的天气预报app
- centos急速搭建lamp
- 分组的自定义流布局方法一
- AfxBeginThread创建线程并指定优先级
- 16 - 12 - 27 图的遍历-深度优先遍历(DFS)
- Manven+Eclipse搭建面向服务式架构
- Android-app-DwWeather天气预报
- 养成这五个习惯，成为资深设计师（二）
- Error:Cause: com.android.sdklib.repository.FullRevision
- 3DGIS第五章 基于GPU的优化处理
- UIWebView长按保存图片
- 获取Uri的后缀名和名称
- 第一个Python3.0 爬虫程序， 爬取百度贴吧图片
- git 对比两个分支差异
- 五、3D数学之矩阵_1
