android - cat_desc 标签无法完全解析并且无法在 webview 中正确显示

Question

首先请检查 url* http://mobileecommerce.site247365.com/admin/catdata.xml在* 谷歌浏览器中。我面临两个问题 1. 对于来自 xml 的第二个 cat_desc 有 cat_name E n I Sept 没有显示在 webview 上。我认为这是因为在它的 cat_desc 在表格样式标签的第一行包含 % 符号 <"table style="border-collapse:collapse;width :100%;">如何忽略 % 符号？

2。第二个问题是，从最后一个带有 cat_name Handouts 的标签开始，在解析 cat_desc 时会产生问题。它不会完全解析，它的最后三行没有被解析。我也会在日志中检查它，但是最后三行没有被解析。为什么会这样？对于其他 cat_desc 解析得很好并且在 webview 上工作得很好。

public class FirstActivity extends ListActivity implements OnItemClickListener {
/** called when the activity is first created. */

String[] cat_name=null;
String[] cat_desc=null;
ListView optionslist=null;
NewsListAdapter adapter=null;
ArrayList<NewsItem> getArray=null;
ArrayAdapter<String> arrayadapter=null;
HashMap<String, String> hashamp=null;



public static final String url="http://mobileecommerce.site247365.com/admin/catdata.xml";
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);


    innitializeUIComponents();
    new RefreshArrayFromInternet().execute(url);


}

public void onItemClick(AdapterView<?> arg0, View arg1, int position, long arg3) {

    Log.v("in position", ""+position);

    String str=new String(getArray.get(position).getCatdesc());
    Log.v("on item click desc", str);
    Intent intent=new Intent(FirstActivity.this, WebviewActivity.class);
    intent.putExtra("str",str);
    startActivity(intent);
}
private void innitializeUIComponents()
{
    optionslist=getListView();
    optionslist.setOnItemClickListener(this);
}

private class RefreshArrayFromInternet extends AsyncTask<String,Void,ArrayList<NewsItem>>
{

    @Override
    protected ArrayList<com.example.vidushi.NewsItem> doInBackground(
            String... params) {


        Log.v("Thread started","parsing thread has started!!!");
        final ArrayList<NewsItem> newsList=new ArrayList<NewsItem>();
        try
        {
            URL urlexec=new URL(params[0]);
            URLConnection connection=urlexec.openConnection();
            InputStream input=connection.getInputStream();
            SAXParserFactory factory=SAXParserFactory.newInstance();
            SAXParser parser=factory.newSAXParser();

            parser.parse(input,new DefaultHandler(){

                boolean itemTagStarted=false;
                String currentTag="";           
                StringBuffer buffer;
                NewsItem item=null;
                @Override
                public void startDocument() throws SAXException {
                    Log.v("parsing started!!!","parsing started!!!");

                }
                @Override
                public void startElement(String uri, String localName,String qName, Attributes attributes)
                throws SAXException {
                    currentTag=localName;
                    Log.v("in start elelmet", "in start elelmet");
                    if(qName.equals("Table"))
                    {
                        buffer=new StringBuffer();
                        itemTagStarted=true;

                        item=new NewsItem();
                    }

                }
                @Override
                public void characters(char[] ch, int start, int length)
                        throws SAXException {

                    if(itemTagStarted)
                    {
                        if(currentTag.equals("Cat_Name"))
                        {
                            item.setCatname(String.valueOf(ch,start,length));

                        }
                        if(currentTag.equals("Cat_id"))
                        {

                            item.setCatid(String.valueOf(ch,start,length));
                        }

                        if(currentTag.equals("Cat_Desc"))
                        {
                            buffer.append(String.valueOf(ch,start,length));

                        }
                    }
                }

                @Override
                public void endElement(String uri, String localName,
                        String qName) throws SAXException {
                    currentTag="";

                    if(qName.equals("Table"))
                    {
                        itemTagStarted=false;
                        newsList.add(item);

                    }
                    if(qName.equals("Cat_Desc"))
                    {
                        item.setCatdesc(buffer.toString());
                        Log.v("Description data",buffer.toString());

                    }
                }
                @Override
                public void endDocument() throws SAXException {
                    Log.v("parsing completed","parsing completed : array size : "+newsList.size());
                }

            });
        }
            catch(Exception ex)
            {
                ex.printStackTrace();
            }

        return newsList;
    }

    @Override
    protected void onPostExecute(ArrayList<NewsItem> result) {
        super.onPostExecute(result);
        getArray=result;
        if(result.size()==0)
        {
            Toast.makeText(FirstActivity.this,"There is some problem with the internet connection or the specified url!!!",Toast.LENGTH_LONG).show();
        }
        String[] array=new String[result.size()];
        cat_desc=new String[result.size()];
        Log.v("resukt size",""+result.size());
        for(int i=0;i<result.size();i++)
        {
            array[i]=result.get(i).getCatname();

        }

        arrayadapter=new ArrayAdapter<String>(FirstActivity.this,android.R.layout.simple_list_item_1,array);
        optionslist.setAdapter(arrayadapter);

    }

}

Answer 1

我已经走了这个 URl:-

http://mobileecommerce.site247365.com/admin/catdata.xml"

并发现您必须进行非常小的更改，使用 px 而不是 %.. 作为 webview 也不支持 %age 符号.. 希望它有所帮助.. :)