android应用程序中getter和setter方法出错
我正在使用android应用程序,getter和setter方法中出现错误: 类型SitesList中的方法setItem(ArrayList)不适用于参数(字符串) 它在myMyXmlHandler文件的第行显示了上述错误:android应用程序中getter和setter方法出错,android,eclipse,xml-parsing,getter-setter,Android,Eclipse,Xml Parsing,Getter Setter,我正在使用android应用程序,getter和setter方法中出现错误: 类型SitesList中的方法setItem(ArrayList)不适用于参数(字符串) 它在myMyXmlHandler文件的第行显示了上述错误:siteList.setItem(currentValue) 这是我的MyXmlHandler文件: package com.example.svnitupdates; import org.xml.sax.Attributes; import org.xml.sax.S
siteList.setItem(currentValue)
这是我的MyXmlHandler文件:
package com.example.svnitupdates;
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 siteList = null;
public static SitesList getSitesList() {
return siteList;
}
public static void setSitesList(SitesList sitesList) {
MyXmlHandler.siteList = sitesList;
}
@Override
public void startElement(String uri, String localName, String qName,
Attributes attributes) throws SAXException {
currentElement = true;
if (localName.equals("maintag"))
{
/** Start */
siteList = new SitesList();
}
}
@Override
public void endElement(String uri, String localName, String qName)
throws SAXException {
currentElement = false;
/** set value */
if (localName.equalsIgnoreCase("item"))
siteList.setItem(currentValue);
}
@Override
public void characters(char[] ch, int start, int length)
throws SAXException {
if (currentElement) {
currentValue = new String(ch, start, length);
currentElement = false;
}
}
}
这是我的站点列表。java
package com.example.svnitupdates;
import java.util.ArrayList;
import com.example.svnitupdates.R.string;
public class SitesList {
private ArrayList<String> item = new ArrayList<String>();
private ArrayList<String> chapter = new ArrayList<String>();
public ArrayList<String> getItem() {
return item;
}
public void setItem(ArrayList<String> item) {
this.item = item;
}
public ArrayList<String> getChapter() {
return chapter;
}
public void setChapter(ArrayList<String> chapter) {
this.chapter = chapter;
}
}
package com.example.svnitupdates;
import java.net.URL;
import java.util.ArrayList;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.xml.sax.InputSource;
import org.xml.sax.XMLReader;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
public class UpdatesActivity extends Activity
{
private ListView listview;
SitesList siteList = null;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.updates);
listview = (ListView) findViewById(R.id.updatesListView);
final ArrayList<String> list = new ArrayList<String>();
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://localhost/svnit%20updates/updates.xml");
MyXmlHandler myXMLHandler = new MyXmlHandler();
xr.setContentHandler(myXMLHandler);
xr.parse(new InputSource(sourceUrl.openStream()));
}catch (Exception e)
{
System.out.println("XML Parsing Excpetion = " + e);
}
siteList = MyXmlHandler.siteList;
for (int i = 0; i < siteList.getItem().size(); ++i)
{
list.add(siteList.getItem.get(i));
}
final UpdatesAdapter adapter = new UpdatesAdapter(UpdatesActivity.this,
android.R.layout.simple_list_item_1, list);
listview.setAdapter(adapter);
listview.setItemsCanFocus(false);
listview.setOnItemClickListener(new AdapterView.OnItemClickListener()
{
public void onItemClick(AdapterView<?> parent, View view,int position, long id)
{
Intent i = new Intent(UpdatesActivity.this, ArticleActivity.class);
i.putExtra("s", position);
startActivity(i);
}
});
}
}
package com.example.svnitupdates;
导入java.util.ArrayList;
导入com.example.svnitupdates.R.string;
公共类站点列表{
私有ArrayList项=新建ArrayList();
private ArrayList chapter=new ArrayList();
公共阵列列表getItem(){
退货项目;
}
公共无效集合项(ArrayList项){
this.item=项目;
}
公共阵列列表getChapter(){
返回章节;
}
公共无效设置章节(ArrayList章节){
本章=本章;
}
}
这是我的更新活动。java
package com.example.svnitupdates;
import java.util.ArrayList;
import com.example.svnitupdates.R.string;
public class SitesList {
private ArrayList<String> item = new ArrayList<String>();
private ArrayList<String> chapter = new ArrayList<String>();
public ArrayList<String> getItem() {
return item;
}
public void setItem(ArrayList<String> item) {
this.item = item;
}
public ArrayList<String> getChapter() {
return chapter;
}
public void setChapter(ArrayList<String> chapter) {
this.chapter = chapter;
}
}
package com.example.svnitupdates;
import java.net.URL;
import java.util.ArrayList;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.xml.sax.InputSource;
import org.xml.sax.XMLReader;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
public class UpdatesActivity extends Activity
{
private ListView listview;
SitesList siteList = null;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.updates);
listview = (ListView) findViewById(R.id.updatesListView);
final ArrayList<String> list = new ArrayList<String>();
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://localhost/svnit%20updates/updates.xml");
MyXmlHandler myXMLHandler = new MyXmlHandler();
xr.setContentHandler(myXMLHandler);
xr.parse(new InputSource(sourceUrl.openStream()));
}catch (Exception e)
{
System.out.println("XML Parsing Excpetion = " + e);
}
siteList = MyXmlHandler.siteList;
for (int i = 0; i < siteList.getItem().size(); ++i)
{
list.add(siteList.getItem.get(i));
}
final UpdatesAdapter adapter = new UpdatesAdapter(UpdatesActivity.this,
android.R.layout.simple_list_item_1, list);
listview.setAdapter(adapter);
listview.setItemsCanFocus(false);
listview.setOnItemClickListener(new AdapterView.OnItemClickListener()
{
public void onItemClick(AdapterView<?> parent, View view,int position, long id)
{
Intent i = new Intent(UpdatesActivity.this, ArticleActivity.class);
i.putExtra("s", position);
startActivity(i);
}
});
}
}
package com.example.svnitupdates;
导入java.net.URL;
导入java.util.ArrayList;
导入javax.xml.parsers.SAXParser;
导入javax.xml.parsers.SAXParserFactory;
导入org.xml.sax.InputSource;
导入org.xml.sax.XMLReader;
导入android.app.Activity;
导入android.content.Intent;
导入android.os.Bundle;
导入android.view.view;
导入android.widget.AdapterView;
导入android.widget.ListView;
公共类更新活动扩展活动
{
私有列表视图列表视图;
SitesList siteList=null;
@凌驾
创建时受保护的void(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.updates);
listview=(listview)findViewById(R.id.updatesListView);
最终ArrayList=新ArrayList();
试一试{
/**处理XML*/
SAXParserFactory spf=SAXParserFactory.newInstance();
SAXParser sp=spf.newSAXParser();
XMLReader xr=sp.getXMLReader();
/**发送URL以解析XML标记*/
URL sourceUrl=新URL(
"http://localhost/svnit%20updates/updates.xml");
MyXmlHandler MyXmlHandler=新的MyXmlHandler();
xr.setContentHandler(myXMLHandler);
parse(新的InputSource(sourceUrl.openStream());
}捕获(例外e)
{
System.out.println(“XML解析expetion=“+e”);
}
siteList=MyXmlHandler.siteList;
对于(int i=0;i
在上面的代码中,第行显示了一个错误:list.add(siteList.getItem.get(i))
位于“.getItem
”
显示“create field,create constant”(创建字段,创建常量)。我认为这是因为
setItem(ArrayList item)
获取了一个字符串的ArrayList,您可以用一个字符串调用它,siteList.setItem(currentValue)代码>当前值是一个字符串。@ramaral我知道这是问题所在,但解决方法是什么。