Question

我有两个工作的RSS源。两者都像预期的那样更新，但是我的第一个RSS源是可滚动的，并且允许单击每个文章（然后出现浏览器）。我只是想知道我是否遗漏了一些重要的事情，或者我做错了吗？

private class MyTask extends AsyncTask<Void, Void, Void>{

                @Override
                protected Void doInBackground(Void... arg0) {
                    try {
                        URL rssUrl1 = new URL("http://rss");
                        SAXParserFactory mySAXParserFactory = SAXParserFactory.newInstance();
                        SAXParser mySAXParser = mySAXParserFactory.newSAXParser();
                        XMLReader myXMLReader = mySAXParser.getXMLReader();
                        RSSHandler myRSSHandler = new RSSHandler();
                        myXMLReader.setContentHandler(myRSSHandler);
                        InputSource myInputSource = new InputSource(rssUrl1.openStream());
                        myXMLReader.parse(myInputSource);
                        myRssFeed = myRSSHandler.getFeed(); 



                        ///URL rssUrl1 = new URL("http://rss");
                        URL rssUrl = new URL("http://www.midlandsireland.ie/news.rss");
                        SAXParserFactory mySAXParserFactory1 = SAXParserFactory.newInstance();
                        SAXParser mySAXParser1 = mySAXParserFactory1.newSAXParser();
                        XMLReader myXMLReader1 = mySAXParser1.getXMLReader();
                        RSSHandler myRSSHandler1 = new RSSHandler();
                        myXMLReader1.setContentHandler(myRSSHandler1);
                        InputSource myInputSource1 = new InputSource(rssUrl.openStream());
                        myXMLReader1.parse(myInputSource1);
                        myRssFeed1 = myRSSHandler1.getFeed(); 

                    } catch (MalformedURLException e) {
                        e.printStackTrace();    
                    } catch (ParserConfigurationException e) {
                        e.printStackTrace();    
                    } catch (SAXException e) {
                        e.printStackTrace();
                    } catch (IOException e) {
                        e.printStackTrace();    
                    }
                    return null;
                }

                @Override
                protected void onPostExecute(Void result) {
                    if (myRssFeed!=null && myRssFeed1!=null) {
                        ArrayAdapter<RSSItem> adapter =
                                new ArrayAdapter<RSSItem>(getApplicationContext(), 
                                        android.R.layout.simple_list_item_1, myRssFeed.getList());
                                            setListAdapter(adapter);

                        ArrayAdapter<RSSItem> adapter1 =
                               new ArrayAdapter<RSSItem>(getApplicationContext(),            
                                       android.R.layout.simple_list_item_1,myRssFeed1.getList());
                        ListView lv = (ListView) findViewById(R.id.list1);
                        lv.setAdapter(adapter1);
                    } 
                    else 
                    {
                     setListAdapter(new ArrayAdapter<RSSItem>(getApplicationContext(),            
                             android.R.layout.simple_list_item_1, new ArrayList<RSSItem>()));

                     ArrayAdapter<RSSItem> adapterEmpty1 = 
                               new ArrayAdapter<RSSItem>(getApplicationContext(),            
                                       android.R.layout.simple_list_item_1, new ArrayList<RSSItem>());
                        ListView lv = (ListView) findViewById(R.id.list1);
                        lv.setAdapter(adapterEmpty1);
                    } 
                    super.onPostExecute(result);
                }
            }
            @Override   
    protected void onListItemClick(ListView l, View v, int position, long id) {     
                Uri feedUri = Uri.parse(myRssFeed.getItem(position).getLink());
                Intent myIntent = new Intent(Intent.ACTION_VIEW, feedUri);
                startActivity(myIntent);
            }

        }

我尝试将工作Feed添加到第二个Feed位置，所以我认为它与listview或textview有关？你觉得怎么样？

 protected void onPostExecute(Void result) {
                    if (myRssFeed!=null && myRssFeed1!=null) {
                        ArrayAdapter<RSSItem> adapter =
                                new ArrayAdapter<RSSItem>(getApplicationContext(), 
                                        android.R.layout.simple_list_item_1, myRssFeed.getList());
                                            setListAdapter(adapter);

                        ArrayAdapter<RSSItem> adapter1 =
                               new ArrayAdapter<RSSItem>(getApplicationContext(),            
                                       android.R.layout.simple_list_item_1,myRssFeed1.getList());
                                            ListView lv = (ListView) findViewById(R.id.list1);
                                                lv.setAdapter(adapter1);
                                                lv.setOnItemClickListener(mListener);   


                                                ListView lv.OnItemClickListener mListener = new OnItemClickListener() {
                                                    @Override
                                                    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                                                        Uri feedUri1 = Uri.parse(myRssFeed1.getItem(position).getLink());
                                                        Intent myIntent1 = new Intent(Intent.ACTION_VIEW, feedUri1);
                                                        startActivity(myIntent1);                   
                                                    };
                                                }





                    }

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/tableLayout1"
    android:layout_width="fill_parent"
    android:layout_height="match_parent"
     android:orientation="vertical"
    android:background="@color/white">

    <fragment
        android:id="@+id/map"
        android:layout_width="300dp"
        android:layout_height="413dp"
        android:layout_marginTop="5dp"
        android:layout_toRightOf="@+id/button5"
        class="com.google.android.gms.maps.MapFragment" />



    <Button
        android:id="@+id/button3"
        android:layout_width="305dp"
        android:layout_height="100dp"
        android:layout_marginLeft="34dp"
        android:layout_marginTop="10dp"
        android:onClick="ClickTourismButton"
        android:layout_below="@+id/map"
        android:text="Touism Guide" />
    <TextView
        android:id="@+id/button5"
        android:layout_width="34dp"
        android:textIsSelectable="true"
        android:layout_height="match_parent"
        android:background="@color/grey"
        />
    <TextView
        android:id="@+id/button6"
        android:layout_width="34dp"
        android:textIsSelectable="true"
        android:layout_alignParentRight="true" 
        android:layout_height="match_parent"
        android:background="@color/grey"
        />
    <Button
        android:id="@+id/button4"
        android:layout_width="305dp"
        android:layout_height="100dp"
       android:layout_marginLeft="34dp"
        android:layout_below="@+id/button3"
        android:text="Whats Nearby" />
    <Button
        android:id="@+id/button2"
        android:layout_width="305dp"
        android:layout_height="100dp"
        android:layout_marginLeft="34dp"
        android:layout_below="@+id/button4"
        android:text="Favouites" />
    <Button
        android:id="@+id/button1"
        style="?android:attr/buttonStyleSmall"
        android:layout_width="304dp"
       android:layout_marginLeft="34dp"  
        android:layout_height="100dp"
        android:layout_below="@+id/button2"
        android:text="See Full Map" />   

    <TextView
        android:layout_width="260dp"
        android:layout_height="413dp"
        android:layout_marginLeft="10dp"
        android:layout_marginTop="5dp"
        android:textIsSelectable="true"
        android:layout_toRightOf="@+id/map"
        android:layout_toLeftOf="@+id/button6"
        android:id="@+id/feedupdate1" />

    <ListView
        android:id="@android:id/list"
        android:background="@color/red"
        android:layout_toRightOf="@+id/map"
        android:layout_width="260dp"
         android:layout_marginTop="5dp"
        android:layout_marginLeft="10dp"
        android:layout_height="413dp" />

    <TextView
        android:id="@+id/empty"
        android:textIsSelectable="true"
        android:layout_width="260dp"
        android:layout_height="413dp"
        android:layout_marginLeft="10dp"
         android:layout_marginTop="5dp"
        />
    <ListView

        android:id="@+id/list1"
        android:background="@color/blue"
        android:layout_toRightOf="@+id/button3"
        android:layout_width="260dp"
        android:layout_marginTop="430dp"
        android:layout_marginLeft="6dp"
        android:layout_height="390dp" /> 
    <TextView
        android:id="@+id/feedupdate"
        android:layout_width="260dp"
        android:layout_height="390dp"
        android:layout_marginLeft="6dp"
        android:layout_marginTop="430dp"
        android:textIsSelectable="true"
        android:layout_toRightOf="@+id/button3"
         />



</RelativeLayout>

Answer 1

您似乎使用的ListActivity管理单个ListView小部件。在此之后，您在onListItemClick中使用的Activity回调仅适用于由ListView管理的ListActivity（ID为android.R.id.list的人）。对于其他ListView，您需要设置自己的OnItemClickeListener。例如：

// a field in your ListActivity
OnItemClickListener mListener = new OnItemClickListener() {
    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
         // do the stuff for the second list feed                   
    }
}

在您的第二个OnItemClickListener上设置此ListView以监听代码中的某些位置（例如onPostExecute方法）：

// ...
ArrayAdapter<RSSItem> adapter1 = new ArrayAdapter<RSSItem>(getApplicationContext(), android.R.layout.simple_list_item_1,myRssFeed1.getList());
ListView lv = (ListView) findViewById(R.id.list1);
lv.setAdapter(adapter1);
lv.setOnItemClickListener(mListener);
// the rest of the code...

RSS Feed不滚动或打开浏览器？

1 个答案: