网上在线获取天气数据

package com.animee.test;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;

/**
* Created by Administrator on 2018/1/13.
*/

public class HttpUtils {
public static String getStringContent(String path){
ByteArrayOutputStream baos = new ByteArrayOutputStream();
try {
HttpURLConnection conn = (HttpURLConnection) new URL(path).openConnection();
InputStream is = conn.getInputStream();
byte[]buf = new byte[1024];
int hasRead = 0;
while((hasRead = is.read(buf))!=-1){
baos.write(buf,0,hasRead);
}
} catch (IOException e) {
e.printStackTrace();
}
return baos.toString();
}
}

package com.animee.test;

import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

import java.util.ArrayList;
import java.util.List;
/**
* 完成
* 需要注意的：
* 1.关于xml解析，并没有固定的规范，在判断时大家要按照便签的名称进行分析，然后依次解析
* 2.关于解析类的封装，没有json数据类型的gsonformat的封装方式，但是大家要根据界面的需要进行封装数据，
* 看界面需要什么，就把什么添加到解析类当中。
* 3.步骤 ：
*      1.布局---》找到控件
*      2.写解析生成的bean类，作为数据源
*      3.写数据源（空的），写适配器
*      4.设置适配器
*      5.网络请求数据
*      6，开始解析
*      7.把解析后的数据，添加到原有的数据源当中
*      8.通知适配器更新数据。
*
* */
public class MainActivity extends AppCompatActivity {
private TabLayout tabLayout;
private ViewPager vp;
//    接口
public String bjUrl = "http://api.map.baidu.com/telematics/v3/weather?location=%E5%8C%97%E4%BA%AC&output=xml&ak=mXBIDrvTOwwmYaTtN03Lo0j2";
public String syUrl = "http://api.map.baidu.com/telematics/v3/weather?location=%E6%B2%88%E9%98%B3&output=xml&ak=mXBIDrvTOwwmYaTtN03Lo0j2";
public String hzUrl = "http://api.map.baidu.com/telematics/v3/weather?location=%E4%B8%8A%E6%B5%B7&output=xml&ak=mXBIDrvTOwwmYaTtN03Lo0j2";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
}

private void initView() {
tabLayout = (TabLayout) findViewById(R.id.tablayout);
vp = (ViewPager) findViewById(R.id.vp);
initPager();
}

private void initPager() {
List<Fragment>fragments = new ArrayList<>();
String url[] = {bjUrl,syUrl,hzUrl};
List<String>titleList = new ArrayList<>();
titleList.add("北京");
titleList.add("沈阳");
titleList.add("杭州");

for (int i = 0; i < 3; i++) {
Fragment frag = new WeatherFragment();
Bundle bundle = new Bundle();
bundle.putString("url",url[i]);
frag.setArguments(bundle);
fragments.add(frag);
}

VPAdapter adapter = new VPAdapter(getSupportFragmentManager(), fragments, titleList);
vp.setAdapter(adapter);
//        使TabLayout和ViewPager产生关联
tabLayout.setupWithViewPager(vp);
}
}

package com.animee.test;
import android.util.Log;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlPullParserFactory;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
/**
* Created by Administrator on 2018/1/13.
*/
public class ParseXML {
public static String TAG = "ParseXML";

public static WeatherBean readXML(String content){
WeatherBean bean  = new WeatherBean();
List<WeatherBean.WeatherDate> weatherList = new ArrayList<>();
List<WeatherBean.Zhishu> zhishuList = new ArrayList<>();
bean.setWeather_dateList(weatherList);
bean.setZhishuList(zhishuList);

//        开始解析
try {
XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
XmlPullParser pullParser = factory.newPullParser();
ByteArrayInputStream bais = new ByteArrayInputStream(content.getBytes());
pullParser.setInput(bais,"utf-8");

int code = pullParser.getEventType();
WeatherBean.WeatherDate weatherDate = null;
WeatherBean.Zhishu zhishu = null;

while (code != XmlPullParser.END_DOCUMENT) {
String name = pullParser.getName();
Log.i(TAG, "readXML: ==name==="+name);
switch (code) {
case XmlPullParser.START_TAG:
if (name.equals("date")) {
Log.i(TAG, "readXML: ==date=创建对象了=");
weatherDate = new WeatherBean.WeatherDate();
weatherDate.setDate(pullParser.nextText());
}else if (name.equals("dayPictureUrl")) {
weatherDate.setDayPictureUrl(pullParser.nextText());
}else if (name.equals("nightPictureUrl")) {
weatherDate.setNightPictureUrl(pullParser.nextText());
}else if (name.equals("weather")) {
weatherDate.setWeather(pullParser.nextText());
}else if (name.equals("wind")) {
weatherDate.setWind(pullParser.nextText());
}else if (name.equals("temperature")) {
weatherDate.setTemperature(pullParser.nextText());
weatherList.add(weatherDate);
}else if (name.equals("title")) {
zhishu  = new WeatherBean.Zhishu();
zhishu.setTitle(pullParser.nextText());
}else if (name.equals("zs")) {
zhishu.setZs(pullParser.nextText());
}else if (name.equals("tipt")) {
zhishu.setTipt(pullParser.nextText());
}else if (name.equals("des")){
zhishu.setDes(pullParser.nextText());
zhishuList.add(zhishu);
}
break;

case XmlPullParser.END_TAG:
if (name.equals("temperature")) {
Log.i(TAG, "readXML: ==添加到集合了==");  //没执行到？　没找到原因，但是换一种写法
//                            weatherList.add(weatherDate);
}else if (name.equals("des")) {
//                            zhishuList.add(zhishu);
}
break;
}
code = pullParser.next();
}
} catch (XmlPullParserException e) {
Log.i(TAG, "readXML: ====XmlPullParserException===");
e.printStackTrace();
} catch (IOException e) {
Log.i(TAG, "readXML: =====IOException=====");
e.printStackTrace();
}
Log.i(TAG, "readXML: ===="+bean);
return bean;
}
}

package com.animee.test;

import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;

import java.util.List;

/**
* Created by Administrator on 2018/1/13.
*/

public class VPAdapter extends FragmentPagerAdapter{
private List<Fragment>mDatas;
private List<String>mTitleList;
public VPAdapter(FragmentManager fm,List<Fragment>mDatas,List<String>mTitleList) {
super(fm);
this.mDatas = mDatas;
this.mTitleList = mTitleList;
}

@Override
public Fragment getItem(int position) {
return mDatas.get(position);
}

@Override
public int getCount() {
return mDatas.size();
}

@Override
public CharSequence getPageTitle(int position) {
return mTitleList.get(position);
}
}

package
4000
com.animee.test;

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

import com.squareup.picasso.Picasso;

import java.util.List;

/**
* Created by Administrator on 2018/1/13.
*/

public class WeatherAdapter extends BaseAdapter{
private Context context;
private List<WeatherBean.WeatherDate>mDatas;

public WeatherAdapter(Context context, List<WeatherBean.WeatherDate> mDatas) {
this.context = context;
this.mDatas = mDatas;
}

@Override
public int getCount() {
return mDatas.size();
}

@Override
public Object getItem(int position) {
return mDatas.get(position);
}

@Override
public long getItemId(int position) {
return position;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
WeatherViewHolder holder = null;
if (convertView==null) {
convertView = LayoutInflater.from(context).inflate(R.layout.item_sp,null);
holder = new WeatherViewHolder(convertView);
convertView.setTag(holder);
}else{
holder = (WeatherViewHolder) convertView.getTag();
}
WeatherBean.WeatherDate weatherDate = mDatas.get(position);
holder.wenduTv.setText("温度："+weatherDate.getTemperature());
holder.dateTv.setText(weatherDate.getDate());
holder.windTv.setText(weatherDate.getWind());
holder.weaherTv.setText("白天情况："+weatherDate.getWeather());
Picasso.with(context).load(weatherDate.getDayPictureUrl()).into(holder.dayIv);
Picasso.with(context).load(weatherDate.getNightPictureUrl()).into(holder.nightTv);
return convertView;
}

class WeatherViewHolder{
TextView dateTv,wenduTv,windTv,weaherTv;
ImageView dayIv,nightTv;
public WeatherViewHolder(View view){
dateTv = (TextView) view.findViewById(R.id.sp_tv_date);
wenduTv = (TextView) view.findViewById(R.id.sp_tv_wendu);
windTv = (TextView) view.findViewById(R.id.sp_tv_fengxiang);
weaherTv = (TextView) view.findViewById(R.id.sp_tv_day);
dayIv = (ImageView) view.findViewById(R.id.sp_img_bt);
nightTv  = (ImageView) view.findViewById(R.id.sp_img_night);
}
}
}

package com.animee.test;

import java.util.List;

/**
* Created by Administrator on 2018/1/13.
*/

public class WeatherBean {
private List<WeatherDate>weather_dateList;
private List<Zhishu>zhishuList;

public WeatherBean() {
}

public List<WeatherDate> getWeather_dateList() {
return weather_dateList;
}

public void setWeather_dateList(List<WeatherDate> weather_dateList) {
this.weather_dateList = weather_dateList;
}

public List<Zhishu> getZhishuList() {
return zhishuList;
}

public void setZhishuList(List<Zhishu> zhishuList) {
this.zhishuList = zhishuList;
}

@Override
public String toString() {
return "WeatherBean{" +
"weather_dateList=" + weather_dateList +
", zhishuList=" + zhishuList +
'}';
}

public WeatherBean(List<WeatherDate> weather_dateList, List<Zhishu> zhishuList) {
this.weather_dateList = weather_dateList;
this.zhishuList = zhishuList;
}

public static  class Zhishu{
private String title;
private String zs;
private String tipt;
private String des;

@Override
public String toString() {
return "Zhishu{" +
"title='" + title + '\'' +
", zs='" + zs + '\'' +
", tipt='" + tipt + '\'' +
", des='" + des + '\'' +
'}';
}

public String getTitle() {
return title;
}

public String getZs() {
return zs;
}

public String getTipt() {
return tipt;
}

public String getDes() {
return des;
}

public Zhishu() {
}

public void setTitle(String title) {
this.title = title;
}

public void setZs(String zs) {
this.zs = zs;
}

public void setTipt(String tipt) {
this.tipt = tipt;
}

public void setDes(String des) {
this.des = des;
}

public Zhishu(String title, String zs, String tipt, String des) {
this.title = title;
this.zs = zs;
this.tipt = tipt;
this.des = des;
}
}
public static class WeatherDate{
private String date;
private String dayPictureUrl;
private String nightPictureUrl;
private String weather;
private String wind;
private String temperature;

@Override
public String toString() {
return "WeatherDate{" +
"date='" + date + '\'' +
", dayPictureUrl='" + dayPictureUrl + '\'' +
", nightPictureUrl='" + nightPictureUrl + '\'' +
", weather='" + weather + '\'' +
", wind='" + wind + '\'' +
", temperature='" + temperature + '\'' +
'}';
}

public WeatherDate() {
}

public WeatherDate(String date, String dayPictureUrl, String nightPictureUrl, String weather, String wind, String temperature) {
this.date = date;
this.dayPictureUrl = dayPictureUrl;
this.nightPictureUrl = nightPictureUrl;
this.weather = weather;
this.wind = wind;
this.temperature = temperature;
}

public String getDate() {
return date;
}

public void setDate(String date) {
this.date = date;
}

public String getDayPictureUrl() {
return dayPictureUrl;
}

public void setDayPictureUrl(String dayPictureUrl) {
this.dayPictureUrl = dayPictureUrl;
}

public String getNightPictureUrl() {
return nightPictureUrl;
}

public void setNightPictureUrl(String nightPictureUrl) {
this.nightPictureUrl = nightPictureUrl;
}

public String getWeather() {
return weather;
}

public void setWeather(String weather) {
this.weather = weather;
}

public String getWind() {
return wind;
}

public void setWind(String wind) {
this.wind = wind;
}

public String getTemperature() {
return temperature;
}

public void setTemperature(String temperature) {
this.temperature = temperature;
}
}
}

package com.animee.test;

import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;
import android.widget.Spinner;

import java.util.ArrayList;
import java.util.List;

/**
* A simple {@link Fragment} subclass.
*/
public class WeatherFragment extends Fragment {

private String url;
private ListView lv;
private Spinner sp;
private List<WeatherBean.WeatherDate> weatherList;
private List<WeatherBean.Zhishu> zhishuList;
private ZhishuAdapter zhishuAdapter;
private WeatherAdapter weatherAdapter;
private String TAG = "WeatherFragment";
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_weather, container, false);
Bundle bundle = getArguments();
url = bundle.getString("url");
initView(view);
return view;
}

private void initView(View view) {
lv = (ListView)view.findViewById(R.id.fragment_lv);
View headerView = LayoutInflater.from(getActivity()).inflate(R.layout.header_layout,null);
lv.addHeaderView(headerView);
sp = (Spinner) headerView.findViewById(R.id.header_sp);
//        数据源：
weatherList = new ArrayList<>();
zhishuList = new ArrayList<>();
zhishuAdapter = new ZhishuAdapter(getActivity(),zhishuList);
lv.setAdapter(zhishuAdapter);

weatherAdapter = new WeatherAdapter(getActivity(),weatherList);
sp.setAdapter(weatherAdapter);

loadData(url);
}

private void loadData(String url) {
new AsyncTask<String,Void,String>(){
@Override
protected String doInBackground(String... params) {
String content = HttpUtils.getStringContent(params[0]);
return content;
}

@Override
protected void onPostExecute(String s) {
//                判断数据，解析数据
if (s!=null&&!s.isEmpty()) {
WeatherBean bean = ParseXML.readXML(s);
Log.i(TAG, "onPostExecute:Weather_dateList().size =="+bean.getWeather_dateList().size());
weatherList.addAll(bean.getWeather_dateList());
weatherAdapter.notifyDataSetChanged();
Log.i(TAG, "onPostExecute: ZhishuList().size====="+bean.getZhishuList().size());
zhishuList.addAll(bean.getZhishuList());
zhishuAdapter.notifyDataSetChanged();
}
}
}.execute(url);
}

}

package com.animee.test;

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

import java.util.List;

/**
* Created by Administrator on 2018/1/13.
*/
public class ZhishuAdapter extends BaseAdapter {
private Context context;
private List<WeatherBean.Zhishu>mDatas;

public ZhishuAdapter(Context context, List<WeatherBean.Zhishu> mDatas) {
this.context = context;
this.mDatas = mDatas;
}

@Override
public int getCount() {
return mDatas.size();
}

@Override
public Object getItem(int position) {
return mDatas.get(position);
}

@Override
public long getItemId(int position) {
return position;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
ZhiShuViewHolder holder = null;
if (convertView == null) {
convertView = LayoutInflater.from(context).inflate(R.layout.item_lv,null);
holder = new ZhiShuViewHolder(convertView);
convertView.setTag(holder);
}else{
holder = (ZhiShuViewHolder) convertView.getTag();
}
WeatherBean.Zhishu zhishu = mDatas.get(position);
holder.titletTv.setText(zhishu.getTitle());
holder.tiptTv.setText(zhishu.getTipt());
holder.zsTv.setText(zhishu.getZs());
holder.detailTv.setText(zhishu.getDes());
return convertView;
}

class ZhiShuViewHolder{
TextView titletTv,zsTv,tiptTv,detailTv;
public ZhiShuViewHolder(View view){
titletTv = (TextView) view.findViewById(R.id.lv_tv1);
zsTv = (TextView) view.findViewById(R.id.lv_tv3);
tiptTv = (TextView) view.findViewById(R.id.lv_tv2);
detailTv = (TextView) view.findViewById(R.id.lv_tv4);
}
}
}

//布局文件

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="com.animee.test.MainActivity">
<android.support.design.widget.TabLayout
android:id="@+id/tablayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabMode="fixed"
app:tabGravity="fill"
app:tabSelectedTextColor="@color/colorAccent"
app:tabIndicatorColor="@color/colorAccent"
app:tabIndicatorHeight="5dp">

</android.support.design.widget.TabLayout>
<android.support.v4.view.ViewPager
android:id="@+id/vp"
android:layout_width="match_parent"
android:layout_height="match_parent">

</android.support.v4.view.ViewPager>

</LinearLayout>

<LinearLayout 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:orientation="vertical"
tools:context="com.animee.test.WeatherFragment">

<!-- TODO: Update blank fragment layout -->
<ListView
android:id="@+id/fragment_lv"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:divider="@color/colorPrimary"
android:dividerHeight="1dp" />

</LinearLayout>

<?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="wrap_content"
android:orientation="vertical"
android:padding="10dp">

<TextView
android:id="@+id/header_tv"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="近期天气情况："
android:textColor="@color/colorPrimary"
android:textSize="20sp"/>

<Spinner
android:id="@+id/header_sp"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/header_tv2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="今日指数分析："
android:layout_marginTop="10dp"
android:layout_marginBottom="10dp"
android:textColor="@color/colorPrimary"
android:textSize="20sp"/>
</LinearLayout>

<?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="match_parent"
android:orientation="vertical"
android:padding="10dp">

<TextView
android:id="@+id/lv_tv1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="穿衣"
android:textSize="20sp"
android:textColor="@color/colorAccent"/>

<TextView
android:id="@+id/lv_tv2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_below="@+id/lv_tv1"
android:layout_marginTop="10dp"
android:text="穿衣指数" />

<TextView
android:id="@+id/lv_tv3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@+id/lv_tv2"
android:layout_marginLeft="30dp"
android:layout_marginStart="30dp"
android:layout_toEndOf="@+id/lv_tv2"
android:layout_toRightOf="@+id/lv_tv2"
android:text="冷" />

<TextView
android:id="@+id/lv_tv4"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/lv_tv2"
android:te
9f40
xtColor="@color/colorPrimary"
android:padding="10dp"
android:background="#eee"
android:layout_margin="10dp"
android:text="天气冷，建议着棉服、羽绒服、皮夹克加羊毛衫等冬季服装。年老体弱者宜着厚棉衣、冬大衣或厚羽绒服。" />

</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#eee"
android:padding="20dp">

<TextView
android:id="@+id/sp_tv_date"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:textSize="18sp"
android:text="周五 01月12日 (实时：-3℃)" />

<TextView
android:id="@+id/sp_tv_day"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_below="@+id/sp_tv_date"
android:layout_marginTop="10dp"
android:text="白天情况：晴" />

<TextView
android:id="@+id/sp_tv_fengxiang"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_below="@+id/sp_tv_day"
android:layout_marginTop="10dp"
android:text="西南风3-4级" />

<TextView
android:id="@+id/sp_tv_wendu"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@+id/sp_tv_fengxiang"
android:layout_marginLeft="30dp"
android:layout_marginStart="30dp"
android:layout_toEndOf="@+id/sp_tv_day"
android:layout_toRightOf="@+id/sp_tv_day"
android:text="温度：3 ~ -8℃" />

<ImageView
android:id="@+id/sp_img_bt"
android:layout_width="40dp"
android:layout_height="30dp"
android:layout_alignBottom="@+id/sp_tv_day"
app:srcCompat="@android:drawable/btn_dialog"
android:layout_alignLeft="@+id/sp_tv_wendu"
android:layout_alignStart="@+id/sp_tv_wendu" />

<TextView
android:id="@+id/sp_tv_night"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_below="@+id/sp_tv_fengxiang"
android:text="夜间情况："

android:layout_marginTop="10dp"/>

<ImageView
android:id="@+id/sp_img_night"
android:layout_width="40dp"
android:layout_height="30dp"
android:layout_alignBottom="@+id/sp_tv_night"
android:layout_alignStart="@+id/sp_img_bt"
android:layout_alignLeft="@+id/sp_img_bt"
android:layout_marginTop="10dp"
app:srcCompat="@android:drawable/btn_dialog" />

<ImageView
android:layout_width="match_parent"
android:layout_height="2dp"
android:layout_below="@+id/sp_img_night"
android:background="@color/colorPrimary"
android:layout_marginTop="10dp"/>

</RelativeLayout>