Android ListView-RSSPro应用程序已停止工作？

我遵循了这一点，但当我尝试运行应用程序时，我得到了“不幸的是，RSSPro已经停止”

这是我的RSSProActivity代码：

package com.android.rss;

import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;

import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlPullParserFactory;

import android.app.ListActivity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class RSSProActivity extends ListActivity {

    ArrayList<String> headlines;
    ArrayList<String> links;

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


     // Initializing instance variables
        headlines = new ArrayList<String>();
        links = new ArrayList<String>();

        try {
            URL url = new URL("http://www.bom.gov.au/fwo/IDZ00059.warnings_vic.xml");

            XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
            factory.setNamespaceAware(false);
            XmlPullParser xpp = factory.newPullParser();

                // We will get the XML from an input stream
            xpp.setInput(getInputStream(url), "UTF_8");

                /* We will parse the XML content looking for the "<title>" tag which appears inside the "<item>" tag.
                 * However, we should take in consideration that the rss feed name also is enclosed in a "<title>" tag.
                 * As we know, every feed begins with these lines: "<channel><title>Feed_Name</title>...."
                 * so we should skip the "<title>" tag which is a child of "<channel>" tag,
                 * and take in consideration only "<title>" tag which is a child of "<item>"
                 *
                 * In order to achieve this, we will make use of a boolean variable.
                 */
            boolean insideItem = false;

                // Returns the type of current event: START_TAG, END_TAG, etc..
            int eventType = xpp.getEventType();
            while (eventType != XmlPullParser.END_DOCUMENT) {
                if (eventType == XmlPullParser.START_TAG) {

                    if (xpp.getName().equalsIgnoreCase("item")) {
                        insideItem = true;
                    } else if (xpp.getName().equalsIgnoreCase("title")) {
                        if (insideItem)
                            headlines.add(xpp.nextText()); //extract the headline
                    } else if (xpp.getName().equalsIgnoreCase("link")) {
                        if (insideItem)
                            links.add(xpp.nextText()); //extract the link of article
                    }
                }else if(eventType==XmlPullParser.END_TAG && xpp.getName().equalsIgnoreCase("item")){
                    insideItem=false;
                }

                eventType = xpp.next(); //move to next element
            }

        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (XmlPullParserException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

        // Binding data
        ArrayAdapter adapter = new ArrayAdapter(this,android.R.layout.simple_list_item_1, headlines);
        setListAdapter(adapter);

    }

    public InputStream getInputStream(URL url) {
           try {
               return url.openConnection().getInputStream();
           } catch (IOException e) {
               return null;
             }
        }

    @Override
    protected void onListItemClick(ListView l, View v, int position, long id) {
        String positions = (String) links.get(position);
       Uri uri = Uri.parse(positions);
       Intent intent = new Intent(Intent.ACTION_VIEW, uri);
       startActivity(intent);
    }

}

package com.android.rss；
导入java.io.IOException；
导入java.io.InputStream；
导入java.net.MalformedURLException；
导入java.net.URL；
导入java.util.ArrayList；
导入java.util.List；
导入org.xmlpull.v1.XmlPullParser；
导入org.xmlpull.v1.XmlPullParserException；
导入org.xmlpull.v1.XmlPullParserFactory；
导入android.app.ListActivity；
导入android.content.Intent；
导入android.net.Uri；
导入android.os.Bundle；
导入android.view.view；
导入android.widget.ArrayAdapter；
导入android.widget.ListView；
公共类RSSProActivity扩展了ListActivity{
ArrayList标题；
ArrayList链接；
/**在首次创建活动时调用*/
@凌驾
创建时的公共void（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
setContentView（R.layout.main）；
//初始化实例变量
标题=新的ArrayList（）；
links=newarraylist（）；
试一试{
URL=新URL（“http://www.bom.gov.au/fwo/IDZ00059.warnings_vic.xml");
XmlPullParserFactory工厂=XmlPullParserFactory.newInstance（）；
factory.setNamespaceAware（false）；
XmlPullParser xpp=factory.newPullParser（）；
//我们将从输入流中获取XML
setInput（getInputStream（url），“UTF_8”）；
/*我们将解析XML内容，查找出现在“”标记内的“”标记。
*但是，我们应该考虑到rss提要名称也包含在“”标记中。
*正如我们所知，每个提要都以以下行开头：“提要名称…”
*所以我们应该跳过“”标记，它是“”标记的子级，
*并且只考虑“”标记，它是“”的子级
*
*为了实现这一点，我们将使用布尔变量。
*/
布尔值insideItem=false；
//返回当前事件的类型：开始标记、结束标记等。。
int eventType=xpp.getEventType（）；
while（eventType！=XmlPullParser.END_文档）{
if（eventType==XmlPullParser.START_标记）{
if（xpp.getName（）.equalsIgnoreCase（“项”））{
insideItem=真；
}else if（xpp.getName（）.equalsIgnoreCase（“title”））{
如果（内部项目）
headlines.add（xpp.nextText（））；//提取标题
}else if（xpp.getName（）.equalsIgnoreCase（“链接”））{
如果（内部项目）
links.add（xpp.nextText（））；//提取文章的链接
}
}else if（eventType==XmlPullParser.END_标记&&xpp.getName（）.equalsIgnoreCase（“项”））{
insideItem=假；
}
eventType=xpp.next（）；//移动到下一个元素
}
}捕获（格式错误）{
e、 printStackTrace（）；
}catch（XMLPullParseRexE）{
e、 printStackTrace（）；
}捕获（IOE异常）{
e、 printStackTrace（）；
}
//绑定数据
ArrayAdapter=新的ArrayAdapter（这是android.R.layout.simple\u list\u item\u 1，标题）；
setListAdapter（适配器）；
}
公共输入流getInputStream（URL）{
试一试{
返回url.openConnection（）.getInputStream（）；
}捕获（IOE异常）{
返回null；
}
}
@凌驾
受保护的void onListItemClick（列表视图l、视图v、整数位置、长id）{
字符串位置=（字符串）链接。获取（位置）；
Uri=Uri.parse（位置）；
意图=新意图（Intent.ACTION\u视图，uri）；
星触觉（意向）；
}
}

My main.xml如下所示：

<?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" >

<ListView
android:id="@android:id/list"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
</ListView>

</LinearLayout>

LogCat消息：

05-21 19:44:40.528: D/dalvikvm(528): Not late-enabling CheckJNI (already on)
05-21 19:44:41.716: I/dalvikvm(528): threadid=3: reacting to signal 3
05-21 19:44:41.726: I/dalvikvm(528): Wrote stack traces to '/data/anr/traces.txt'
05-21 19:44:41.946: D/dalvikvm(528): GC_FOR_ALLOC freed 87K, 3% free 9136K/9347K, paused 113ms
05-21 19:44:41.956: I/dalvikvm-heap(528): Grow heap (frag case) to 9.904MB for 960016-byte allocation
05-21 19:44:42.056: D/dalvikvm(528): GC_CONCURRENT freed 1K, 3% free 10072K/10311K, paused 6ms+14ms
05-21 19:44:42.176: D/dalvikvm(528): GC_FOR_ALLOC freed 0K, 3% free 10072K/10311K, paused 38ms
05-21 19:44:42.196: I/dalvikvm-heap(528): Grow heap (frag case) to 11.963MB for 2160016-byte allocation
05-21 19:44:42.217: I/dalvikvm(528): threadid=3: reacting to signal 3
05-21 19:44:42.306: I/dalvikvm(528): Wrote stack traces to '/data/anr/traces.txt'
05-21 19:44:42.316: D/dalvikvm(528): GC_CONCURRENT freed 0K, 2% free 12181K/12423K, paused 3ms+4ms
05-21 19:44:42.526: D/gralloc_goldfish(528): Emulator without GPU emulation detected.
05-21 19:44:48.076: I/dalvikvm(528): threadid=3: reacting to signal 3
05-21 19:44:48.206: D/AndroidRuntime(528): Shutting down VM
05-21 19:44:48.206: W/dalvikvm(528): threadid=1: thread exiting with uncaught exception (group=0x409c01f8)
05-21 19:44:48.216: I/dalvikvm(528): Wrote stack traces to '/data/anr/traces.txt'
05-21 19:44:48.396: E/AndroidRuntime(528): FATAL EXCEPTION: main
05-21 19:44:48.396: E/AndroidRuntime(528): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.android.rss/com.android.rss.RSSProActivity}: android.os.NetworkOnMainThreadException
05-21 19:44:48.396: E/AndroidRuntime(528):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1956)
05-21 19:44:48.396: E/AndroidRuntime(528):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
05-21 19:44:48.396: E/AndroidRuntime(528):  at android.app.ActivityThread.access$600(ActivityThread.java:123)
05-21 19:44:48.396: E/AndroidRuntime(528):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
05-21 19:44:48.396: E/AndroidRuntime(528):  at android.os.Handler.dispatchMessage(Handler.java:99)
05-21 19:44:48.396: E/AndroidRuntime(528):  at android.os.Looper.loop(Looper.java:137)
05-21 19:44:48.396: E/AndroidRuntime(528):  at android.app.ActivityThread.main(ActivityThread.java:4424)
05-21 19:44:48.396: E/AndroidRuntime(528):  at java.lang.reflect.Method.invokeNative(Native Method)
05-21 19:44:48.396: E/AndroidRuntime(528):  at java.lang.reflect.Method.invoke(Method.java:511)
05-21 19:44:48.396: E/AndroidRuntime(528):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
05-21 19:44:48.396: E/AndroidRuntime(528):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
05-21 19:44:48.396: E/AndroidRuntime(528):  at dalvik.system.NativeStart.main(Native Method)
05-21 19:44:48.396: E/AndroidRuntime(528): Caused by: android.os.NetworkOnMainThreadException
05-21 19:44:48.396: E/AndroidRuntime(528):  at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1099)
05-21 19:44:48.396: E/AndroidRuntime(528):  at java.net.InetAddress.lookupHostByName(InetAddress.java:391)
05-21 19:44:48.396: E/AndroidRuntime(528):  at java.net.InetAddress.getAllByNameImpl(InetAddress.java:242)
05-21 19:44:48.396: E/AndroidRuntime(528):  at java.net.InetAddress.getAllByName(InetAddress.java:220)
05-21 19:44:48.396: E/AndroidRuntime(528):  at libcore.net.http.HttpConnection.<init>(HttpConnection.java:71)
05-21 19:44:48.396: E/AndroidRuntime(528):  at libcore.net.http.HttpConnection.<init>(HttpConnection.java:50)
05-21 19:44:48.396: E/AndroidRuntime(528):  at libcore.net.http.HttpConnection$Address.connect(HttpConnection.java:351)
05-21 19:44:48.396: E/AndroidRuntime(528):  at libcore.net.http.HttpConnectionPool.get(HttpConnectionPool.java:86)
05-21 19:44:48.396: E/AndroidRuntime(528):  at libcore.net.http.HttpConnection.connect(HttpConnection.java:128)
05-21 19:44:48.396: E/AndroidRuntime(528):  at libcore.net.http.HttpEngine.openSocketConnection(HttpEngine.java:308)
05-21 19:44:48.396: E/AndroidRuntime(528):  at libcore.net.http.HttpEngine.connect(HttpEngine.java:303)
05-21 19:44:48.396: E/AndroidRuntime(528):  at libcore.net.http.HttpEngine.sendSocketRequest(HttpEngine.java:282)
05-21 19:44:48.396: E/AndroidRuntime(528):  at libcore.net.http.HttpEngine.sendRequest(HttpEngine.java:232)
05-21 19:44:48.396: E/AndroidRuntime(528):  at libcore.net.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:273)
05-21 19:44:48.396: E/AndroidRuntime(528):  at libcore.net.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:168)
05-21 19:44:48.396: E/AndroidRuntime(528):  at com.android.rss.RSSProActivity.getInputStream(RSSProActivity.java:92)
05-21 19:44:48.396: E/AndroidRuntime(528):  at com.android.rss.RSSProActivity.onCreate(RSSProActivity.java:48)
05-21 19:44:48.396: E/AndroidRuntime(528):  at android.app.Activity.performCreate(Activity.java:4465)
05-21 19:44:48.396: E/AndroidRuntime(528):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
05-21 19:44:48.396: E/AndroidRuntime(528):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920)
05-21 19:44:48.396: E/AndroidRuntime(528):  ... 11 more
05-21 19:44:48.616: I/dalvikvm(528): threadid=3: reacting to signal 3
05-21 19:44:48.708: I/dalvikvm(528): Wrote stack traces to '/data/anr/traces.txt'
05-21 19:44:49.116: I/dalvikvm(528): threadid=3: reacting to signal 3
05-21 19:44:49.206: I/dalvikvm(528): Wrote stack traces to '/data/anr/traces.txt'
05-21 19:44:49.436: I/dalvikvm(528): threadid=3: reacting to signal 3
05-21 19:44:49.476: I/dalvikvm(528): Wrote stack traces to '/data/anr/traces.txt'
05-21 19:44:56.997: I/Process(528): Sending signal. PID: 528 SIG: 9

05-21 19:44:40.528:D/dalvikvm（528）：未延迟启用CheckJNI（已启用）
05-21 19:44:41.716:I/dalvikvm（528）：threadid=3：对信号3作出反应
05-21 19:44:41.726:I/dalvikvm（528）：将堆栈跟踪写入“/data/anr/traces.txt”
5-21 19:44:41.946:D/dalvikvm（528）：释放87K的所有元素的GC，3%的自由元素9136K/9347K，暂停113ms
05-21 19:44:41.956:I/dalvikvm堆（528）：为960016字节分配将堆（frag案例）增长到9.904MB
5-21 19:44:42.056:D/dalvikvm（528）：GC_并发释放1K，3%释放10072K/10311K，暂停6ms+14ms
5-21 19:44:42.176:D/dalvikvm（528）：释放0千分之三自由度10072K/10311K，暂停38毫秒
05-21 19:44:42.196:I/dalvikvm堆（528）：为2160016字节分配将堆（frag案例）增长到11.963MB
05-21 19:44:42.217:I/dalvikvm（528）：threadid=3：对信号3作出反应
05-21 19:44:42.306:I/dalvikvm（528）：将堆栈跟踪写入“/data/anr/traces.txt”
5-21 19:44:42.316:D/dalvikvm（528）：GC_并发释放0公里，2%释放12181K/12423K，暂停3毫秒+4毫秒
05-21 19:44:42.526:D/gralloc_金鱼（528）：未检测到GPU仿真的仿真器。
05-21 19:44:48.076:I/dalvikvm（528）：线程ID=3：对信号3作出反应
05-21 19:44:48.206:D/AndroidRuntime（528）：关闭虚拟机
05-21 19:44:48.206:W/dalvikvm（528）：threadid=1：线程以未捕获异常退出（组=0x409c01f8）
05-21 19:44:48.216:I/dalvikvm（528）：将堆栈跟踪写入“/data/anr/traces.txt”
05-21 19:44:48.396:E/AndroidRuntime（528）：致命异常：主
05-21 19:44:48.396:E/AndroidRuntime（528）：java.lang.RuntimeException:无法启动活动组件信息{com.android.rss/com.android.rss.RSSProActivity}:android.os.NetworkOnMainThreadException
05-21 19:44:48.396:E/AndroidRuntime（528）：在android.app.ActivityThread.performLaunchActivity（ActivityThread.java:1956）
05-21 19:44:48.396:E/AndroidRuntime（528）：在android.app.ActivityT