天气预报

实验效果图：(未达到实验效果）

主要代码：

Mainactivity

package com.example.weather;import android.os.Bundle;import android.app.Activity;import android.view.Menu;public class MainActivity extends Activity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.main, menu);return true;}}

Weatheractivity

package com.example.weather;import java.io.UnsupportedEncodingException;import java.net.URLEncoder;import java.util.ArrayList;import java.util.List;import com.example.weather.adapter.WeatherAdapter;import com.example.weather.moder.Weather;import com.example.weather.util.HttpCallbackListener;import com.example.weather.util.HttpUtil;import com.google.gson.JsonArray;import com.google.gson.JsonObject;import com.google.gson.JsonParser;import android.app.Activity;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.view.View;import android.view.View.OnClickListener;import android.view.animation.LayoutAnimationController;import android.view.animation.ScaleAnimation;import android.widget.EditText;import android.widget.ImageButton;import android.widget.ListView;import android.widget.Toast;public class WeatherActivity extends Activity {private EditText ecCity;private ImageButton btnQuery;private ListView lvFutureWeather;public static final int SHOW_RESPONSE=1;private List<Weather> data;private Handler handler=new Handler(){public void handleMessage(Message msg){switch (msg.what) {case SHOW_RESPONSE:String response=(String )msg.obj;if(response!=null){parseWithJSON(response);WeatherAdapter weatherAdapter=new WeatherAdapter(WeatherActivity.this, R.layout.activity_weather_listitem, data);lvFutureWeather.setAdapter(weatherAdapter);ScaleAnimation scaleAnimation=new ScaleAnimation(0,1,0,1);scaleAnimation.setDuration(1000);LayoutAnimationController animationController  =  newLayoutAnimationController(scaleAnimation, 0.6f);lvFutureWeather.setLayoutAnimation(animationController);}break;default:break;}}private void parseWithJSON(String response) {// TODO Auto-generated method stubdata=new ArrayList<Weather>();JsonParser parser=new JsonParser();//json解析器JsonObject obj=(JsonObject) parser.parse(response);//获取返回状态吗String resultcode=obj.get("resultcode").getAsString();//状态码如果是200说明数据返回成功if(resultcode!=null&&resultcode.equals("200")){JsonObject resultObj=obj.get("result").getAsJsonObject();JsonArray futureWeatherArray=resultObj.get("future").getAsJsonArray();for(int i=0;i<futureWeatherArray.size();i++){Weather  weather=new Weather();JsonObject weatherObject=futureWeatherArray.get(i).getAsJsonObject();weather.setDayOfWeek(weatherObject.get("week").getAsString());weather.setDate(weatherObject.get("date").getAsString());weather.setTemperature(weatherObject.get("temperature").getAsString());weather.setWeather(weatherObject.get("weather").getAsString());data.add(weather);}}}};@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_weather);initViews();setListeners();}public void initViews(){ecCity=(EditText) findViewById(R.id.etCity);btnQuery=(ImageButton)findViewById(R.id.btnQuery);lvFutureWeather=(ListView) findViewById(R.id.lvFutureWeather); data=new ArrayList<Weather>();}private void setListeners(){btnQuery.setOnClickListener(new OnClickListener() {public void onClick(View v) {// TODO Auto-generated method stubString cityName=ecCity.getText().toString();try {cityName = URLEncoder.encode("菏泽", "utf-8");} catch (UnsupportedEncodingException e1) {e1.printStackTrace();}System.out.println("lvFutureWeather="+lvFutureWeather);Toast.makeText(WeatherActivity.this, "success",Toast.LENGTH_LONG).show();String weatherUrl = "http://v.juhe.cn/weather/index?format=2&cityname="+cityName+"&key=ab9d7e2007472d723baf71fcdc4ba094";Toast.makeText(WeatherActivity.this, "success"+weatherUrl,Toast.LENGTH_LONG).show();HttpUtil.sendHttpRequest(weatherUrl, new HttpCallbackListener() {public void onFinish(String response) {// TODO Auto-generated method stubMessage message=new Message();message.what=SHOW_RESPONSE;//将服务器返回的结果存放到Message中message.obj=response.toString();handler.sendMessage(message);}public void onError(Exception e) {// TODO Auto-generated method stubSystem.out.println("访问失败");}});}});}}

WeatherAdapter

package com.example.weather.adapter;import java.util.List;import android.content.Context;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.ArrayAdapter;import android.widget.TextView;import com.example.weather.R;import com.example.weather.moder.Weather;/** * 天气适配器 * @author zhupeng * */public class WeatherAdapter extends ArrayAdapter<Weather> {private int resourceId;public WeatherAdapter(Context context, int textViewResourceId,List<Weather> objects) {super(context, textViewResourceId, objects);resourceId = textViewResourceId;}@Overridepublic View getView(int position, View convertView, ViewGroup viewgroup) {Weather weather=getItem(position);ViewHolder viewHolder=null;if(convertView==null){viewHolder=new ViewHolder();convertView=LayoutInflater.from(getContext()).inflate(resourceId, null);viewHolder.tvDayOfWeek=(TextView)convertView.findViewById(R.id.tvDayofWeek);viewHolder.tvDate=(TextView) convertView.findViewById(R.id.tvDate);viewHolder.tvTemperature=(TextView) convertView.findViewById(R.id.tvTemperature);viewHolder.tvWeather=(TextView) convertView.findViewById(R.id.tvWeather);convertView.setTag(viewHolder);}else{viewHolder=(ViewHolder) convertView.getTag();}viewHolder.tvDayOfWeek.setText(weather.getDayOfWeek());viewHolder.tvDate.setText(weather.getDate());viewHolder.tvTemperature.setText(weather.getTemperature());viewHolder.tvWeather.setText(weather.getWeather());return convertView;}private class ViewHolder{TextView tvDayOfWeek;TextView tvDate;TextView tvTemperature;TextView tvWeather;}}

Weather

package com.example.weather.moder;public class Weather {private String dayOfWeek;//星期几private String date;//日期private String temperature;//温度private String weather;//天气public Weather(){}public Weather(String dayOfWeek, String date, String temperature,String weather) {super();this.dayOfWeek = dayOfWeek;this.date = date;this.temperature = temperature;this.weather = weather;}public String getDayOfWeek() {return dayOfWeek;}public void setDayOfWeek(String dayOfWeek) {this.dayOfWeek = dayOfWeek;}public String getDate() {return date;}public void setDate(String date) {this.date = date;}public String getTemperature() {return temperature;}public void setTemperature(String temperature) {this.temperature = temperature;}public String getWeather() {return weather;}public void setWeather(String weather) {this.weather = weather;}@Overridepublic String toString() {return "Weather [dayOfWeek=" + dayOfWeek + ", date=" + date+ ", temperature=" + temperature + ", weather=" + weather + "]";}}

WeatherGetTest

package com.example.weather.test;import java.io.UnsupportedEncodingException;import java.net.URLEncoder;import com.example.weather.util.HttpCallbackListener;import com.example.weather.util.HttpUtil;import android.test.AndroidTestCase;public class WeatherGetTest  extends AndroidTestCase{ public void testGetData(){  String cityName;try {cityName = URLEncoder.encode("菏泽", "utf-8");String  weatherUrl="http://v.juhe.cn/weather/index?format=2&cityname="+cityName+"&key=ab9d7e2007472d723baf71fcdc4ba094"; HttpUtil.sendHttpRequest(weatherUrl, new HttpCallbackListener() {public void onFinish(String response) {// TODO Auto-generated method stubSystem.out.println(response);}public void onError(Exception e) {// TODO Auto-generated method stub}}); }catch (Exception e) {// TODO: handle exception} }}

Layout

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:background="@drawable/city"    tools:context=".WeatherActivity" >    <LinearLayout        android:id="@+id/linearLayout1"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:orientation="horizontal" >        <EditText            android:id="@+id/etCity"            android:layout_width="0dp"            android:layout_height="wrap_content"            android:layout_marginLeft="10dp"            android:layout_marginTop="20dp"            android:layout_weight="1"            android:background="@android:drawable/edit_text"            android:drawableLeft="@drawable/etcity"            android:drawablePadding="5dp"            android:ems="10"            android:hint="@string/etCity" >            <requestFocus />        </EditText>        <ImageButton            android:id="@+id/btnQuery"            android:layout_width="50dp"            android:layout_height="50dp"            android:layout_marginTop="20dp"                  android:background="@null"            android:src="@drawable/serch" />    </LinearLayout>    <ListView        android:id="@+id/lvFutureWeather"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_below="@+id/linearLayout1"        android:layout_centerHorizontal="true"        android:layout_marginLeft="10dp"        android:layout_marginRight="10dp"        android:dividerHeight="10dp"        android:layoutAnimation="@anim/weather_list_layout_animation" >    </ListView></RelativeLayout>