Android中解析XML

向右看齐 2022-06-04 07:29 329阅读 0赞

Java文件：

MainActivity:

package com.sdut.testadapter;
    
    import java.io.BufferedReader;
    import java.io.File;
    import java.io.InputStream;
    import java.io.InputStreamReader;
    import java.net.MalformedURLException;
    import java.net.URL;
    import java.util.ArrayList;
    import java.util.HashMap;
    
    import com.lidroid.xutils.HttpUtils;
    import com.lidroid.xutils.exception.HttpException;
    import com.lidroid.xutils.http.RequestParams;
    import com.lidroid.xutils.http.ResponseInfo;
    import com.lidroid.xutils.http.callback.RequestCallBack;
    import com.lidroid.xutils.http.client.HttpRequest.HttpMethod;
    
    import android.app.Activity;
    import android.app.ProgressDialog;
    import android.os.Bundle;
    import android.os.Environment;
    import android.os.Handler;
    import android.os.Message;
    import android.util.Log;
    import android.view.View;
    import android.view.View.OnClickListener;
    import android.view.Window;
    import android.widget.ArrayAdapter;
    import android.widget.Button;
    import android.widget.ListView;
    import android.widget.SimpleAdapter;
    import android.widget.Toast;
    
    public class MainActivity extends Activity {
    
    	ProgressDialog progressDialog;
    	ListView listView;
    	Button button;
    	Button buttonJson,btnDown;
    	Handler handler;
    	ArrayList<HashMap<String, String>> listData;
    	String[] data;
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            requestWindowFeature(Window.FEATURE_NO_TITLE);
            
            setContentView(R.layout.activity_main);
            initView();
            data=getArrayData();
            listData=getListData();
            ArrayAdapter<String> adapter=new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, data);
            String[] fromKey={"xh","xm"};
            int[] toID={R.id.txtXh,R.id.txtXm};
            SimpleAdapter adapter2=new SimpleAdapter(this, listData, R.layout.listdata_layout,fromKey,toID);
            MyBaseAdapter adapter3=new MyBaseAdapter(this, listData);
            listView.setAdapter(adapter3);
            
            handler=new Handler(){
            	@Override
            	public void handleMessage(Message msg) {
            		// 接收线程传回来的Message
            		switch (msg.what) {
    				case 1:
    					progressDialog.dismiss();
    					Bundle bundle=msg.getData();
    					String str=bundle.getString("version");
    					VersionEntity entity=Tools.VersionJson(str);
    					Toast.makeText(getApplicationContext(), "发现新版本："+entity.getVerMem(), 1).show();
    					break;
    
    				default:
    					break;
    				}
            		super.handleMessage(msg);
            	}
            };
            
            button.setOnClickListener(new OnClickListener() {
    			@Override
    			public void onClick(View arg0) {
    				progressDialog.show();
    				//开始执行查询  XUtils.jar
    				HttpUtils httpUtils=new HttpUtils();
    				String url="http://ws.webxml.com.cn/WebServices/TrainTimeWebService.asmx/getStationAndTimeByStationName";
    				RequestParams params=new RequestParams();
    				params.addBodyParameter("StartStation", "淄博");
    				params.addBodyParameter("ArriveStation", "威海");
    				params.addBodyParameter("UserID", "");
    				params.addBodyParameter("Content-Type", "application/x-www-form-urlencoded");
    				
    				httpUtils.send(HttpMethod.POST, url, params, new RequestCallBack<String>() {
    
    					@Override
    					public void onFailure(HttpException arg0, String arg1) {
    						//网络连接失败
    						progressDialog.dismiss();
    						Toast.makeText(MainActivity.this, "网络错误", Toast.LENGTH_LONG).show();
    					}
    
    					@Override
    					public void onSuccess(ResponseInfo<String> response) {
    						progressDialog.dismiss();
    						String reuslt=response.result;
    						Log.d("result", reuslt);
    						ArrayList<HashMap<String, String>> list=Tools.pullTrainTimeTable(reuslt);
    						Log.d("listsize", ""+list.size());
    						String[] fromKey={"TrainCode","FirstStation","LastStation","StartStation","StartTime","ArriveStation","ArriveTime"};
    						int[] toID={R.id.txtTrainCode,R.id.txtFirstStation,R.id.txtLastStation,R.id.txtStartStation,R.id.txtStartTime,R.id.txtArriveStation,R.id.txtArriveTime};
    						SimpleAdapter adapter=new SimpleAdapter(MainActivity.this, list, R.layout.trainitem_layout, fromKey, toID);
    						listView.setAdapter(adapter);
    						Toast.makeText(MainActivity.this, "车次数量："+list.size(), Toast.LENGTH_LONG).show();
    						
    					}
    				});
    				
    			}
    		});
            
            buttonJson.setOnClickListener(new OnClickListener() {
    			@Override
    			public void onClick(View arg0) {
    				progressDialog.show();
    				GetJsonVersion getJsonVersion=new GetJsonVersion();
    				getJsonVersion.start();
    				
    //				String s="{VersionName:V2.0,VersionCode:10,VersionMem:本次升级优化了系统性能.2017-9-4,ApkUrl:sjws.apk}";
    //				VersionEntity entity=Tools.VersionJson(s);
    //				Toast.makeText(getApplicationContext(), "有新版本："+entity.getVerMem(), 1).show();
    			}
    		});
            btnDown.setOnClickListener(new OnClickListener() {
    			@Override
    			public void onClick(View arg0) {
    				HttpUtils httpUtils=new HttpUtils();
    				String url="http://210.44.176.42/kaoshi/apkupdate/sjws.apk";
    				String saveTo=Environment.getExternalStorageDirectory().getAbsolutePath()+"//sjws.apk";
    				httpUtils.download(url, saveTo, new RequestCallBack<File>() {
    					@Override
    					public void onSuccess(ResponseInfo<File> response) {
    						// 下载成功
    						File file= response.result;
    						Toast.makeText(getApplicationContext(), file.getAbsolutePath(), 1).show();
    					}
    					@Override
    					public void onLoading(long total, long current,
    							boolean isUploading) {
    						// 下载过程中...
    						
    						super.onLoading(total, current, isUploading);
    					}
    					@Override
    					public void onFailure(HttpException arg0, String arg1) {
    						//网络错误
    						
    					}
    				});
    				
    			}
    		});
            
    //        String xmlStr="<root><VersionCode>20</VersionCode><ApkUrl>sjws.apk</ApkUrl><VersionMem>增加了在线更新功能</VersionMem><VersionName>Ver1.2</VersionName></root>";
    //        HashMap<String, String> map= Tools.pullVersionXml(xmlStr);
    //        Toast.makeText(this, map.get("VersionCode")+map.get("VersionMem"), 1).show();
            
            
        }
        protected void initView() {
        	progressDialog=new ProgressDialog(this);
        	progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
        	progressDialog.setTitle("正在读取");
        	progressDialog.setMessage("请稍等...");
        	progressDialog.setCancelable(false);
        	
        	button=(Button) findViewById(R.id.btnSearch);
        	btnDown=(Button) findViewById(R.id.btnDown);
        	buttonJson=(Button) findViewById(R.id.btnJson);
    		listView=(ListView) findViewById(R.id.myList);
    	}
        protected ArrayList<HashMap<String, String>> getListData() {
    		ArrayList<HashMap<String, String>> list=new ArrayList<HashMap<String,String>>();
    		for(int i=0;i<20;i++){
    			HashMap<String, String> map=new HashMap<String, String>();
    			map.put("xh", "xh--"+i);
    			map.put("xm", "xm--"+i);
    			list.add(map);			
    		}
        	return list;
    	}
        protected String[] getArrayData() {
    		String[] data=new String[20];
    		for(int i=0;i<data.length;i++){
    			data[i]="data"+i;
    		}
    		return data;
    	}
    
        class GetJsonVersion extends Thread{
        	
        	@Override
        	public void run() {
        		String str="http://210.44.176.42/kaoshi/apkupdate/updatejson.html";
        		try {
    				URL url=new URL(str);
    			 	InputStream in= url.openStream();
    //			 	Environment.getExternalStorageDirectory();
    			 	BufferedReader br=new BufferedReader(new InputStreamReader(in));
    			 	String result="";
    			 	String tmpS=br.readLine();
    			 	while(tmpS!=null){
    			 		result=result+tmpS;
    			 		tmpS=br.readLine();
    			 	}
    			 	Bundle data=new Bundle();
    			 	data.putString("version", result);
    			 	Message msg=new Message();
    			 	msg.what=1;
    			 	msg.setData(data);
    			 	handler.sendMessage(msg);
    				
    			} catch (Exception e) {
    				// TODO Auto-generated catch block
    				e.printStackTrace();
    			}
        		super.run();
        	}
        }
        
    }

MyBaseAdapter:

package com.sdut.testadapter;
    
    import java.util.ArrayList;
    import java.util.HashMap;
    
    import android.content.Context;
    import android.view.LayoutInflater;
    import android.view.View;
    import android.view.ViewGroup;
    import android.widget.BaseAdapter;
    import android.widget.TextView;
    
    public class MyBaseAdapter extends BaseAdapter{
    
    	ArrayList<HashMap<String, String>> list;
    	Context context;
    	
    	public MyBaseAdapter(Context context,ArrayList<HashMap<String, String>> list){
    		this.context=context;
    		this.list=list;
    	}
    	
    	@Override
    	public int getCount() {
    		// TODO Auto-generated method stub
    		return list.size();
    	}
    
    	@Override
    	public Object getItem(int pos) {
    		// TODO Auto-generated method stub
    		return list.get(pos);
    	}
    
    	@Override
    	public long getItemId(int arg0) {
    		// TODO Auto-generated method stub
    		return 0;
    	}
    
    	@Override
    	public View getView(int pos, View view, ViewGroup arg2) {
    		// TODO Auto-generated method stub
    		HashMap<String, String> map=list.get(pos);
    		ViewHolder holder;
    		if(view==null){
    			holder=new ViewHolder();
    			view=LayoutInflater.from(context).inflate(R.layout.listdata_layout,null);
    			holder.txtxh=(TextView) view.findViewById(R.id.txtXh);
    			holder.txtxm=(TextView) view.findViewById(R.id.txtXm);
    			view.setTag(holder);
    		}else{
    			holder=(ViewHolder) view.getTag();
    		}
    		holder.txtxh.setText("MyBaseAdapter"+map.get("xh"));
    		holder.txtxm.setText(map.get("xm"));
    		
    		return view;
    	}
    	
    	static class ViewHolder{
    		TextView txtxh;
    		TextView txtxm;
    	}
    
    }

MyPagerAdapter:

package com.sdut.testadapter;
    
    import java.util.ArrayList;
    
    import android.support.v4.view.PagerAdapter;
    import android.view.View;
    import android.view.ViewGroup;
    
    public class MyPagerAdapter extends PagerAdapter {
    	ArrayList<View> arrayList=new ArrayList<View>();
    	public MyPagerAdapter(ArrayList<View> arrayList){
    		this.arrayList=arrayList;
    	}
    	
    	@Override
    	public int getCount() {
    		// TODO Auto-generated method stub
    		return arrayList.size();
    	}
    	
    	@Override
    	public boolean isViewFromObject(View arg0, Object arg1) {
    		// TODO Auto-generated method stub
    		return arg0==arg1;
    	}
    
    	@Override
    	public void destroyItem(ViewGroup container, int position, Object object) {
    		// TODO Auto-generated method stub
    		container.removeView(arrayList.get(position));
    //		super.destroyItem(container, position, object);
    	}
    	@Override
    	public Object instantiateItem(ViewGroup container, int position) {
    		// TODO Auto-generated method stub
    		container.addView(arrayList.get(position));
    		return arrayList.get(position);
    //		return super.instantiateItem(container, position);
    	}
    
    }

Tools:

package com.sdut.testadapter;
    
    import java.io.ByteArrayInputStream;
    import java.util.ArrayList;
    import java.util.HashMap;
    
    import org.json.JSONArray;
    import org.json.JSONException;
    import org.json.JSONObject;
    import org.xmlpull.v1.XmlPullParser;
    import org.xmlpull.v1.XmlPullParserException;
    
    import android.util.Log;
    import android.util.Xml;
    
    public class Tools {
    //{VersionName:V2.0,VersionCode:10,VersionMem:本次升级优化了系统性能.2017-9-4,ApkUrl:sjws.apk}
    	
    	public static ArrayList<HashMap<String, String>> StuJson(String str) {
    		ArrayList<HashMap<String, String>> list=new ArrayList<HashMap<String,String>>();
    		HashMap<String, String> map=new HashMap<String, String>();
    		try {
    			JSONArray jsonArray=new JSONArray(str);
    			for(int i=0;i<jsonArray.length();i++){
    				JSONObject obj=jsonArray.getJSONObject(i);
    				map=new HashMap<String, String>();
    				map.put("xm", obj.getString("xm"));
    				map.put("bj", obj.getString("bj"));
    				list.add(map);
    			}
    		} catch (Exception e) {
    			e.printStackTrace();
    		}
    		return list;
    	}
    	
    	public static VersionEntity VersionJson(String str) {
    		VersionEntity entity=new VersionEntity();
    		try {
    			JSONObject jsonObject=new JSONObject(str);
    			String name=jsonObject.getString("VersionName");
    			String code=jsonObject.getString("VersionCode");
    			String mem=jsonObject.getString("VersionMem");
    			String apkurl=jsonObject.getString("ApkUrl");
    			entity.setVerName(name);
    			entity.setVerCode(code);
    			entity.setVerMem(mem);
    			entity.setVerUrl(apkurl);
    		} catch (Exception e) {
    			// TODO Auto-generated catch block
    			e.printStackTrace();
    		}
    		return entity;
    	}
    	
    	public static ArrayList<HashMap<String, String>> pullTrainTimeTable(String str) {
    		ArrayList<HashMap<String, String>> list=new ArrayList<HashMap<String,String>>();
    		HashMap<String, String> map=new HashMap<String, String>();
    		XmlPullParser parser=Xml.newPullParser();
    		ByteArrayInputStream in=new ByteArrayInputStream(str.getBytes());
    		try {
    			parser.setInput(in,null);
    			int eventType=parser.getEventType();
    			while(eventType!=XmlPullParser.END_DOCUMENT){
    				if(eventType==XmlPullParser.START_TAG){
    					String tagname=parser.getName();
    					Log.d("tagName", tagname);
    					if(tagname.equals("TimeTable")){
    						map=new HashMap<String, String>();
    					}
    					if(tagname.equals("TrainCode")){
    						map.put("TrainCode", parser.nextText());
    					}
    					if(tagname.equals("FirstStation")){
    						map.put("FirstStation", parser.nextText());
    					}
    					if(tagname.equals("LastStation")){
    						map.put("LastStation", parser.nextText());
    					}
    					if(tagname.equals("StartStation")){
    						map.put("StartStation", parser.nextText());
    					}
    					if(tagname.equals("StartTime")){
    						map.put("StartTime", parser.nextText());
    					}
    					if(tagname.equals("ArriveTime")){
    						map.put("ArriveTime", parser.nextText());
    					}
    					if(tagname.equals("ArriveStation")){
    						map.put("ArriveStation", parser.nextText());
    					}
    				}
    				if(eventType==XmlPullParser.END_TAG){
    					if(parser.getName().equals("TimeTable")){
    						list.add(map);
    					}
    				}
    				eventType=parser.next();
    			}
    		} catch (Exception e) {
    			e.printStackTrace();
    		}
    		return list;
    	}
    	
    	
    //	<root>
    //	  <VersionCode>20</VersionCode> 
    //	  <VersionMem>增加了在线更新功能</VersionMem> 
    //	  <VersionName>Ver1.2</VersionName> 
    //	  <ApkUrl>sjws.apk</ApkUrl> 
    //	  </root>
    	public static HashMap<String, String> pullVersionXml(String str) {
    		HashMap<String, String> map=new HashMap<String, String>();
    		ByteArrayInputStream in=new ByteArrayInputStream(str.getBytes());
    		XmlPullParser parser=Xml.newPullParser();
    		try {
    			parser.setInput(in, null);
    			int eventType= parser.getEventType();
    			while(eventType!=XmlPullParser.END_DOCUMENT){
    				if(eventType==XmlPullParser.START_TAG){
    					String tagName=parser.getName();
    					if(tagName.equals("VersionCode")){
    						map.put("VersionCode", parser.nextText());
    					}
    					if(tagName.equals("VersionMem")){
    						map.put("VersionMem", parser.nextText());
    					}
    					if(tagName.equals("VersionName")){
    						map.put("VersionName", parser.nextText());
    					}
    					if(tagName.equals("ApkUrl")){
    						map.put("ApkUrl", parser.nextText());
    					}
    				}
    				parser.next();
    				eventType= parser.getEventType();
    			}
    		} catch (Exception e) {
    			// TODO Auto-generated catch block
    			e.printStackTrace();
    		}
    		return map;
    	}
    }

VersionEntity:

package com.sdut.testadapter;
    
    public class VersionEntity {
    
    	private String verName;
    	private String verCode;
    	private String verMem;
    	private String verUrl;
    	public String getVerName() {
    		return verName;
    	}
    	public void setVerName(String verName) {
    		this.verName = verName;
    	}
    	public String getVerCode() {
    		return verCode;
    	}
    	public void setVerCode(String verCode) {
    		this.verCode = verCode;
    	}
    	public String getVerMem() {
    		return verMem;
    	}
    	public void setVerMem(String verMem) {
    		this.verMem = verMem;
    	}
    	public String getVerUrl() {
    		return verUrl;
    	}
    	public void setVerUrl(String verUrl) {
    		this.verUrl = verUrl;
    	}
    	
    	
    }

ViewFlipperActivity:

package com.sdut.testadapter;
    
    import java.util.ArrayList;
    
    import android.app.Activity;
    import android.os.Bundle;
    import android.support.v4.app.FragmentActivity;
    import android.support.v4.app.FragmentPagerAdapter;
    import android.support.v4.view.ViewPager;
    import android.view.LayoutInflater;
    import android.view.View;
    import android.widget.Button;
    import android.widget.TextView;
    import android.widget.Toast;
    
    public class ViewFlipperActivity extends Activity{
    
    	ViewPager viewPager;
    	@Override
    	protected void onCreate(Bundle savedInstanceState) {
    		// TODO Auto-generated method stub
    		setContentView(R.layout.myflipper_layout);
    		viewPager=(ViewPager) findViewById(R.id.viewpager);
    		
    //		FragmentActivity
    //		FragmentPagerAdapter
    		
    		View view=LayoutInflater.from(this).inflate(R.layout.activity_main, null);
    		TextView textView=new TextView(this);
    		textView.setText("看看第一个");
    		Button button=new Button(this);
    		button.setText("这是第二个");
    		ArrayList<View> arrayList=new ArrayList<View>();
    		arrayList.add(button);
    		arrayList.add(textView);
    		arrayList.add(view);
    		
    		MyPagerAdapter adapter=new MyPagerAdapter(arrayList);
    		viewPager.setAdapter(adapter);
    		
    		Toast.makeText(this,""+viewPager.getChildCount(),1).show();
    		super.onCreate(savedInstanceState);
    	}
    
    }

布局文件：

activity\_main.xml：

listdata\_layout.xml：

myflipper\_layout.xml：

trainitem\_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" >
        <LinearLayout 
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal">
            <TextView 
                android:id="@+id/txtTrainCode"
                android:layout_width="0dp"
                android:layout_weight="1"
                android:layout_height="wrap_content"/>
            <TextView 
                android:id="@+id/txtFirstStation"
                android:layout_width="0dp"
                android:layout_weight="1"
                android:layout_height="wrap_content"/>
            <TextView 
                android:id="@+id/txtLastStation"
                android:layout_width="0dp"
                android:layout_weight="1"
                android:layout_height="wrap_content"/>
        </LinearLayout>
        <LinearLayout 
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal">
            <TextView 
                android:id="@+id/txtStartStation"
                android:layout_width="0dp"
                android:layout_weight="1"
                android:layout_height="wrap_content"/>
            <TextView 
                android:id="@+id/txtStartTime"
                android:layout_width="0dp"
                android:layout_weight="1"
                android:layout_height="wrap_content"/>
            <TextView 
                android:id="@+id/txtArriveStation"
                android:layout_width="0dp"
                android:layout_weight="1"
                android:layout_height="wrap_content"/>
            <TextView 
                android:id="@+id/txtArriveTime"
                android:layout_width="0dp"
                android:layout_weight="1"
                android:layout_height="wrap_content"/>
        </LinearLayout>
        
    
    </LinearLayout>

array.xml：

<?xml version="1.0" encoding="utf-8"?>
    <resources>
    <string-array name="mingdan">
        <item >qasdasdads</item>
        <item >fghdfg</item>
        <item >dfgdfgd</item>
        <item >sdf</item>
        <item >sdrt3453</item>
    </string-array>    
    </resources>

注：权限设置AndroidManifest.xml

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    	<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/>    
        <uses-permission  android:name="android.permission.INTERNET"/>