天气预报

一 UI效果



二 核心代码



1.MainActivity.java
package com.example.weather;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;

public class MainActivity extends Activity
{

@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_weather);
}
@Override
public 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;
}
}
2.WeatherActivity.java
package com.example.weather;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;

public class WeatherActivity extends Activity
{

@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_weather);
}

@Override
public boolean onCreateOptionsMenu(Menu menu)
{
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.weather, menu);
return true;
}

}
3.WeatherGetTest.java
package com.example.weather;

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 weatherUrl="http://v.juhe.cn/weather/index?format=2&cityname= 滨 州&key=aaaeccabc5bdfb201d21854d0ce3fdd7";
HttpUtil.sendHttpRequest(weatherUrl, new HttpCallbackListener() {
public void onFinish(String response) {
System.out.println(response);
}
public void onError(Exception e) {
}
});
}
}
4.WeatherAdapter.java
package com.example.weather.adapter;

import java.util.List;

import com.example.weather.R;
import com.example.weather.model.Weather;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.TextView;

public class WeatherAdapter extends ArrayAdapter<Weather>
{
private int resourceId;

public WeatherAdapter(Context context, int textViewResourceId,
List<Weather> objects)
{
super(context, textViewResourceId, objects);
resourceId = textViewResourceId;
}

public 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.action_settings);
viewHolder.tvDate = (TextView) convertView
.findViewById(R.id.action_settings);
viewHolder.tvTemperature = (TextView) convertView
.findViewById(R.id.action_settings);
viewHolder.tvWeather = (TextView) convertView
.findViewById(R.id.action_settings);
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;
}
}
5.Weather.java
package com.example.weather.model;
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;
}

public String toString()
{
return "Weather [dayOfWeek=" + dayOfWeek + ", date=" + date
+ ", temperature=" + temperature + ", weather=" + weather + "]";
}
}
6.HttpCallbackListener.java

package com.example.weather.util;

public interface HttpCallbackListener
{
void onFinish(String response);
void onError(Exception e);
}

7.HttpUtil.java

package com.example.weather.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()
{
HttpURLConnection connection = null;
try
{
URL url = new URL(address);
connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.setConnectTimeout(8000);
connection.setReadTimeout(8000);
connection.setDoInput(true);
connection.setDoOutput(true);
InputStream in = connection.getInputStream();
BufferedReader reader = new BufferedReader(
new InputStreamReader(in));
StringBuilder response = new StringBuilder();
String line;
while ((line = reader.readLine()) != null)
{
response.append(line);
}
if (listener != null)
{
// 回调 onFinish()方法
listener.onFinish(response.toString());
}
} catch (Exception e)
{
if (listener != null)
{
// 回调 onError()方法
listener.onError(e);
}
} finally
{
if (connection != null)
{
connection.disconnect();
}
}
}
}).start();
}
}

8.weather_list_animation.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<scale
android:interpolator="@android:anim/accelerate_decelerate_interpolator"
android:fromXScale="0.0"
android:toXScale="1.0"
android:fromYScale="0.0"
android:toYScale="1.0"
android:duration="1000"
/>
</set>

9.weather_list_layout_animation.xml

<?xml version="1.0" encoding="utf-8"?>
<layoutAnimation xmlns:android="http://schemas.android.com/apk/res/android"
    android:animation="@anim/weather_list_animation"
    android:animationOrder="normal"
    android:delay="2" />

10.activity_weather_listitem.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_margin="10dp"
    android:background="@drawable/list_item_shape"
    android:padding="10dp" >

    <TextView
        android:id="@+id/tvDayofWeek"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:layout_marginLeft="15dp"
        android:text="星期日" />

    <TextView
        android:id="@+id/tvDate"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/tvDayofWeek"
        android:layout_alignBottom="@+id/tvDayofWeek"
        android:layout_alignParentRight="true"
        android:text="20160207" />

    <TextView
        android:id="@+id/tvTemperature"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/tvDayofWeek"
        android:layout_below="@+id/tvDayofWeek"
        android:layout_marginTop="15dp"
        android:text="temperature" />

    <TextView
        android:id="@+id/tvWeather"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/tvTemperature"
        android:layout_below="@+id/tvTemperature"
        android:layout_marginTop="15dp"
        android:text="weather" />

</RelativeLayout>

11.activity_weather.xml

<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/activity_weather_bg"
    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/icons_weather_city"
            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/icons_weather_query" />
    </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>