如何顯示在Android的

Question

我的web服務的web服務列表視圖中的數據格式返回數據

AB CDEF 我必須展示在這裏的ListView這回的數據是我的welcome.xml在我所顯示數據

的welcome.xml

<?xml version="1.0" encoding="utf-8" ?> 
- <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical"> 
    <ImageView android:id="@+id/welcome" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/main" android:layout_gravity="center_horizontal" /> 
    - 
- <RelativeLayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginTop="10dip" android:id="@+id/Relative01"> 
    <ListView android:id="@+id/lvevent" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_below="@+id/welcome" android:background="@drawable/wel_bg" android:layout_marginBottom="50dip" /> 
    </RelativeLayout> 
- <TableLayout android:layout_height="fill_parent" android:layout_width="fill_parent" android:layout_below="@+id/Relative01"> 
- <TableRow> 
    <Button android:id="@+id/btn_index" android:layout_height="wrap_content" android:layout_width="wrap_content" android:background="@drawable/cap_button" android:paddingRight="15dip" android:layout_marginRight="50dip" /> 
    <Button android:id="@+id/btn_event" android:layout_height="wrap_content" android:layout_width="wrap_content" android:background="@drawable/button" android:layout_toRightOf="@+id/btn_index" android:paddingLeft="25dip" android:layout_marginLeft="30dip" /> 
    </TableRow> 
    </TableLayout> 
    </LinearLayout> 

如何在listview中顯示數據？

下面的代碼我使用的解析器：

MYXMLHandler.java：

package org.parsing; 

import org.xml.sax.Attributes; 
import org.xml.sax.SAXException; 
import org.xml.sax.helpers.DefaultHandler; 



public class MyXMLHandler extends DefaultHandler{ 
Boolean currentElement = false; 
String currentValue = null; 
public static SitesList sitesList = null; 

public static SitesList getSitesList() { 
    return sitesList; 
} 

public static void setSitesList(SitesList sitesList) { 
    MyXMLHandler.sitesList = sitesList; 
} 

/** Called when tag starts (ex:- <name>AndroidPeople</name> 
    * -- <name>)*/ 
@Override 
public void startElement(String uri, String localName, String qName, 
    Attributes attributes) throws SAXException { 

    currentElement = true; 

    if (localName.equals("content")) 
    { 
    /** Start */ 
    sitesList = new SitesList(); 
    } /*else if (localName.equals("website")) { 
    *//** Get attribute value *//* 
    String attr = attributes.getValue("category"); 
    sitesList.setCategory(attr); 
    }*/ 

} 

/** Called when tag closing (ex:- <name>AndroidPeople</name> 
    * -- </name>)*/ 
@Override 
public void endElement(String uri, String localName, String qName) 
    throws SAXException { 

    currentElement = false; 

    /** set value */ 
    if (localName.equalsIgnoreCase("title")) 
    sitesList.setTitle(currentValue); 
    else if (localName.equalsIgnoreCase("description")) 
    sitesList.setDescription(currentValue); 

} 

/** Called to get tag characters (ex:- <name>AndroidPeople</name> 
    * -- to get AndroidPeople Character) */ 
public void characters(char[] ch, int start, int length) 
    throws SAXException { 

    if (currentElement) { 
    currentValue = new String(ch, start, length); 
    currentElement = false; 
    } 

} 


} 

SitesList.java：

package org.parsing; 

import java.util.ArrayList; 

public class SitesList { 

/** Variables */ 
private ArrayList<String> title = new ArrayList<String>(); 
private ArrayList<String> description = new ArrayList<String>(); 
//private ArrayList<String> category = new ArrayList<String>(); 


/** In Setter method default it will return arraylist 
    * change that to add */ 

public ArrayList<String> getTitle() { 
    return title; 
} 

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

public ArrayList<String> getDescription() { 
    return description; 
} 

public void setDescription(String description) { 
    this.description.add(description); 
} 

/*public ArrayList<String> getCategory() { 
    return category; 
} 

public void setCategory(String category) { 
    this.category.add(category); 
} 
*/ 
} 

XMLParsingExample.java：

package org.parsing; 

import java.net.URL; 

import javax.xml.parsers.SAXParser; 
import javax.xml.parsers.SAXParserFactory; 

import org.xml.sax.ContentHandler; 
import org.xml.sax.InputSource; 
import org.xml.sax.XMLReader; 


import android.app.Activity; 
import android.os.Bundle; 
import android.widget.LinearLayout; 
import android.widget.TextView; 

public class XMLParsingExample extends Activity { 
/** Create Object For SiteList Class */ 
SitesList sitesList = null; 

/** Called when the activity is first created. */ 
@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 

    /** Create a new layout to display the view */ 
    LinearLayout layout = new LinearLayout(this); 
    layout.setOrientation(1); 

    /** Create a new textview array to display the results */ 
    TextView title[]; 
    TextView description[]; 
    //TextView category[]; 

    try { 

    /** Handling XML */ 
    SAXParserFactory spf = SAXParserFactory.newInstance(); 
    SAXParser sp = spf.newSAXParser(); 
    XMLReader xr = sp.getXMLReader(); 

    /** Send URL to parse XML Tags */ 
    URL sourceUrl = new URL(
    "http://208.109.97.179:1010/webservices/newsevents.php"); 

    /** Create handler to handle XML Tags (extends DefaultHandler) */ 
    MyXMLHandler myXMLHandler = new MyXMLHandler(); 
    xr.setContentHandler((ContentHandler) myXMLHandler); 
    xr.parse(new InputSource(sourceUrl.openStream())); 

    } catch (Exception e) { 
    System.out.println("XML Pasing Excpetion = " + e); 
    } 

    /** Get result from MyXMLHandler SitlesList Object */ 
    sitesList = MyXMLHandler.sitesList; 

    /** Assign textview array lenght by arraylist size */ 
    title = new TextView[sitesList.getTitle().size()]; 
    description = new TextView[sitesList.getDescription().size()]; 
    //category = new TextView[sitesList.getName().size()]; 

    /** Set the result text in textview and add it to layout */ 
    for (int i = 0; i < sitesList.getTitle().size(); i++) { 
    title[i] = new TextView(this); 
    title[i].setText("Title = "+sitesList.getTitle().get(i)); 
    description[i] = new TextView(this); 
    description[i].setText("Website = "+sitesList.getDescription().get(i)); 
    //category[i] = new TextView(this); 
    //category[i].setText("Website Category = "+sitesList.getCategory().get(i)); 

    layout.addView(title[i]); 
    layout.addView(description[i]); 
    //layout.addView(category[i]); 
    } 

    /** Set the layout view to display */ 
    setContentView(layout); 

} 

} 

後CH ecking我的代碼告訴我我錯在哪裏，並告訴正確的答案。

Answer 1

一種解決方案是，解析來自Web服務的XML響應並將解析的數據存儲在數組中。然後，只需使用陣列適配器來填充ListView。