android.app.SuperNotCalledException（错误）
我是android新手。我正在尝试测试rss提要阅读器，我收到了这个错误消息 原因：android.app.SuperNotCalledException:活动 错误日志cat如下所示：android.app.SuperNotCalledException（错误）,android,Android,我是android新手。我正在尝试测试rss提要阅读器，我收到了这个错误消息 原因：android.app.SuperNotCalledException:活动 错误日志cat如下所示： 11-27 07:08:04.192: E/AndroidRuntime(1471): FATAL EXCEPTION: AsyncTask #1 11-27 07:08:04.192: E/AndroidRuntime(1471): java.lang.RuntimeException: An error o
11-27 07:08:04.192: E/AndroidRuntime(1471): FATAL EXCEPTION: AsyncTask #1
11-27 07:08:04.192: E/AndroidRuntime(1471): java.lang.RuntimeException: An error occured while executing doInBackground()
11-27 07:08:04.192: E/AndroidRuntime(1471): at android.os.AsyncTask$3.done(AsyncTask.java:278)
11-27 07:08:04.192: E/AndroidRuntime(1471): at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273)
11-27 07:08:04.192: E/AndroidRuntime(1471): at java.util.concurrent.FutureTask.setException(FutureTask.java:124)
11-27 07:08:04.192: E/AndroidRuntime(1471): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307)
11-27 07:08:04.192: E/AndroidRuntime(1471): at java.util.concurrent.FutureTask.run(FutureTask.java:137)
11-27 07:08:04.192: E/AndroidRuntime(1471): at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:208)
11-27 07:08:04.192: E/AndroidRuntime(1471): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
11-27 07:08:04.192: E/AndroidRuntime(1471): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
11-27 07:08:04.192: E/AndroidRuntime(1471): at java.lang.Thread.run(Thread.java:856)
11-27 07:08:04.192: E/AndroidRuntime(1471): Caused by: android.view.ViewRootImpl$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views.
11-27 07:08:04.192: E/AndroidRuntime(1471): at android.view.ViewRootImpl.checkThread(ViewRootImpl.java:3939)
11-27 07:08:04.192: E/AndroidRuntime(1471): at android.view.ViewRootImpl.requestLayout(ViewRootImpl.java:701)
11-27 07:08:04.192: E/AndroidRuntime(1471): at android.view.View.requestLayout(View.java:12555)
11-27 07:08:04.192: E/AndroidRuntime(1471): at android.view.View.requestLayout(View.java:12555)
11-27 07:08:04.192: E/AndroidRuntime(1471): at android.view.View.requestLayout(View.java:12555)
11-27 07:08:04.192: E/AndroidRuntime(1471): at android.view.View.requestLayout(View.java:12555)
11-27 07:08:04.192: E/AndroidRuntime(1471): at android.view.View.requestLayout(View.java:12555)
11-27 07:08:04.192: E/AndroidRuntime(1471): at android.widget.AbsListView.requestLayout(AbsListView.java:1690)
11-27 07:08:04.192: E/AndroidRuntime(1471): at android.widget.ListView.setAdapter(ListView.java:488)
11-27 07:08:04.192: E/AndroidRuntime(1471): at com.example.testrss.ConnectToServer.doInBackground(ConnectToServer.java:78)
11-27 07:08:04.192: E/AndroidRuntime(1471): at android.os.AsyncTask$2.call(AsyncTask.java:264)
11-27 07:08:04.192: E/AndroidRuntime(1471): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
package com.example.testrss;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.DOMException;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;
public class NPRNewsDetails extends Activity {
// a main category subject has already been selected by the user
// (data <"urlCaption", "urlAddress"> comes in a bundle sent
// by main, access web-feed and show corresponding headlines
ArrayList<SingleNewsItem> newsList = new ArrayList<SingleNewsItem>();
ArrayAdapter<String> aa;
ListView myListView;
String urlAddress = "";
String urlCaption = "";
SingleNewsItem selectedNewsItem;
Context context = getApplication();
ConnectToServer cNTS;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
myListView = (ListView) this.findViewById(R.id.myListView);
// create a local Intent handler (needed to process input parameters)
Intent myLocalIntent = getIntent();
// grab the data bundle with all the pieces sent to us
// it contains 1. url-address and 2. caption-text
Bundle myBundle = myLocalIntent.getExtras();
urlAddress = myBundle.getString("urlAddress");
urlCaption = myBundle.getString("urlCaption");
System.out.println("urlAddress ####" + urlAddress); // value from
// MainActivity
// http://www.npr.org/rss/rss.php?id=1007
System.out.println("urlCaption####" + urlCaption); // Test RSS
// top caption for this screen
String todayStr = MainActivity.niceDate();
this.setTitle("NPR -" + urlCaption + " \t" + todayStr);
// clicking a line shows more about selected news item
myListView = (ListView) this.findViewById(R.id.myListView);
myListView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> _av, View _v, int _index,
long _id) {
// TODO Auto-generated method stub
System.out.println("item click index"+_index);
selectedNewsItem = newsList.get(_index);
showNiceDialogBox(selectedNewsItem, context);
}
});
}// onCreate
@Override
protected void onResume() {
super.onResume();
cNTS = new ConnectToServer(NPRNewsDetails.this,
myListView, newsList);
Log.i("onResum", "I'm Resume");
cNTS.execute(urlAddress);
Log.i("onResum", "I'm Resume");
}
@Override
protected void onDestroy() {
// TODO Auto-generated method stub
}
public void showNiceDialogBox(SingleNewsItem selectedNewsItem,
Context context) {
// assemble a nice looking dialog box
try {
final Uri myLink = Uri.parse(selectedNewsItem.getLink());
AlertDialog.Builder myBuilder = new AlertDialog.Builder(this);
myBuilder
.setIcon(R.drawable.ic_launcher)
.setTitle(urlCaption)
.setMessage(
selectedNewsItem.getTitle() + "\n\n"
+ selectedNewsItem.getDescription() + "\n")
.setPositiveButton("Close", null)
.setNegativeButton("More", new OnClickListener() {
public void onClick(DialogInterface dialog, int whichOne) {
// use native web browsing
Intent webIntent = new Intent(Intent.ACTION_VIEW,
myLink);
startActivity(webIntent);
}
})// setNegativeButton
.create();
myBuilder.show();
} catch (Exception e) {
e.printStackTrace();
}
}// showNiceDialogBox
}
package com.example.testrss;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.w3c.dom.DOMException;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import android.content.Context;
import android.os.AsyncTask;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;
public class ConnectToServer extends AsyncTask
{
ListView myListView;
Context context;
ArrayList<SingleNewsItem> newsList = new ArrayList<SingleNewsItem>();
public ConnectToServer(Context context, ListView myListView, ArrayList<SingleNewsItem> newsList)
{
this.context = context;
this.myListView = myListView;
this.newsList.addAll(newsList);
}
@Override
protected Object doInBackground(Object... params)
{
try
{
String urlAddress = (String) params[0];
URL url = new URL(urlAddress);
URLConnection connection;
connection = url.openConnection();
HttpURLConnection httpConnection = (HttpURLConnection) connection;
int responseCode = httpConnection.getResponseCode();
if (responseCode == HttpURLConnection.HTTP_OK) {
InputStream in = httpConnection.getInputStream();
DocumentBuilderFactory dbf = DocumentBuilderFactory
.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document dom = db.parse(in);
Element docEle = dom.getDocumentElement();
// NodeListnl= docEle.getElementsByTagName("entry");
NodeList nl = docEle.getElementsByTagName("item");
if ((nl != null) && (nl.getLength() > 0)) {
for (int i = 0; i < nl.getLength(); i++) {
dissectNode(nl, i);
}// for
}// if
}// if
int layoutID = R.layout.my_simple_list_item;
ArrayAdapter<SingleNewsItem> aaNews = new ArrayAdapter<SingleNewsItem>(this.context, layoutID, newsList);
myListView.setAdapter(aaNews);
}
catch (MalformedURLException e) {
System.out.println("Malformed error");
e.printStackTrace();
} catch (IOException e) {
System.out.println("IO error");
e.printStackTrace();
} catch (ParserConfigurationException e) {
System.out.println("Parser error");
e.printStackTrace();
} catch (SAXException e) {
System.out.println("SAX Error");
e.printStackTrace();
}
return null;
}
public void dissectNode(NodeList nl, int i) {
try {
Element entry = (Element) nl.item(i);
Element title = (Element) entry.getElementsByTagName("title").item(
0);
Element description = (Element) entry.getElementsByTagName(
"description").item(0);
Element pubDate = (Element) entry.getElementsByTagName("pubDate")
.item(0);
Element link = (Element) entry.getElementsByTagName("link").item(0);
String titleValue = title.getFirstChild().getNodeValue();
String descriptionValue = description.getFirstChild()
.getNodeValue();
String dateValue = pubDate.getFirstChild().getNodeValue();
String linkValue = link.getFirstChild().getNodeValue();
SingleNewsItem singleItem = new SingleNewsItem(dateValue,
titleValue, descriptionValue, linkValue);
newsList.add(singleItem);
} catch (DOMException e) {
e.printStackTrace();
}
}// dissectNode
@Override
protected void onPostExecute(Object result)
{
// TODO Auto-generated method stub
super.onPostExecute(result);
}
}
package com.example.testrss；
导入java.io.IOException；
导入java.io.InputStream；
导入java.net.HttpURLConnection；
导入java.net.MalformedURLException；
导入java.net.URL；
导入java.net.URLConnection；
导入java.util.ArrayList；
导入javax.xml.parsers.DocumentBuilder；
导入javax.xml.parsers.DocumentBuilderFactory；
导入javax.xml.parsers.parserConfiguration异常；
导入org.w3c.dom.domeException；
导入org.w3c.dom.Document；
导入org.w3c.dom.Element；
导入org.w3c.dom.NodeList；
导入org.xml.sax.SAXException；
导入android.app.Activity；
导入android.app.AlertDialog；
导入android.content.Context；
导入android.content.DialogInterface；
导入android.content.DialogInterface.OnClickListener；
导入android.content.Intent；
导入android.net.Uri；
导入android.os.Bundle；
导入android.util.Log；
导入android.view.view；
导入android.widget.AdapterView；
导入android.widget.AdapterView.OnItemClickListener；
导入android.widget.ArrayAdapter；
导入android.widget.ListView；
导入android.widget.Toast；
公共类NPRNewsDetails扩展活动{
//用户已选择主类别主题
//（数据以捆绑方式发送
//通过main访问web提要并显示相应的标题
ArrayList newsList=新建ArrayList（）；
ArrayAdapter aa；
列表视图；
字符串url地址=”；
字符串url-caption=“”；
SingleNewsItem selectedNewsItem；
Context=getApplication（）；
连接到服务器CNT；
@凌驾
创建时的公共void（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
setContentView（R.layout.activity_main）；
myListView=（ListView）this.findViewById（R.id.myListView）；
//创建本地意图处理程序（需要处理输入参数）
Intent myLocalIntent=getIntent（）；
//抓取所有发送给我们的数据包
//它包含1.url地址和2.标题文本
Bundle myBundle=myLocalinent.getExtras（）；
urlAddress=myBundle.getString（“urlAddress”）；
urlCaption=myBundle.getString（“urlCaption”）；
System.out.println（“urlAddress#####“+urlAddress）；//来自
//主要活动
// http://www.npr.org/rss/rss.php?id=1007
System.out.println（“urlCaption######“+urlCaption）；//测试RSS
//此屏幕的顶部标题
String todayStr=MainActivity.niceDate（）；
此.setTitle（“NPR-”+URLCoption+“\t”+todayStr）；
//单击一行可显示有关所选新闻项的详细信息
myListView=（ListView）this.findViewById（R.id.myListView）；
myListView.setOnItemClickListener（新的OnItemClickListener（）{
@凌驾
公共链接（AdapterView-av、View-v、int-index、，
（长id）{
//TODO自动生成的方法存根
System.out.println（“项目点击索引”+_索引）；
selectedNewsItem=newsList.get（_index）；
显示对话框（选定的新闻项、上下文）；
}
});
}//一次创建
@凌驾
受保护的void onResume（）{
super.onResume（）；
cNTS=新的ConnectToServer（NPRNewsDetails.this，
myListView，新闻列表）；
Log.i（“onResum”、“我是简历”）；
cNTS.execute（URL地址）；
Log.i（“onResum”、“我是简历”）；
}
@凌驾
受保护的空onDestroy（）{
//TODO自动生成的方法存根
}
public void shownice对话框（SingleNewsItem selectedNewsItem，
上下文（上下文）{
//组装一个漂亮的对话框
试一试{
最终Uri myLink=Uri.parse（selectedNewsItem.getLink（））；
AlertDialog.Builder myBuilder=新建AlertDialog.Builder（此）；
myBuilder
.setIcon（R.drawable.ic_启动器）
.setTitle（URL标题）
.setMessage(
selectedNewsItem.getTitle（）+“\n\n”
+selectedNewsItem.getDescription（）+“\n”）
.setPositiveButton（“关闭”，null）
.setNegativeButton（“更多”，新的OnClickListener（）{
public void onClick（DialogInterface dialog，int whichOne）{
//使用本机web浏览
意向webIntent=新意向（Intent.ACTION\u视图，
myLink）；
startActivity（webIntent）；
}
})//设置负按钮
.create（）；
myBuilder.show（）；
}捕获（例外e）{
e、 printStackTrace（）；
}
}//显示对话框
}
package com.example.testrss;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.DOMException;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;
public class NPRNewsDetails extends Activity {
// a main category subject has already been selected by the user
// (data <"urlCaption", "urlAddress"> comes in a bundle sent
// by main, access web-feed and show corresponding headlines
ArrayList<SingleNewsItem> newsList = new ArrayList<SingleNewsItem>();
ArrayAdapter<String> aa;
ListView myListView;
String urlAddress = "";
String urlCaption = "";
SingleNewsItem selectedNewsItem;
Context context = getApplication();
ConnectToServer cNTS;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
myListView = (ListView) this.findViewById(R.id.myListView);
// create a local Intent handler (needed to process input parameters)
Intent myLocalIntent = getIntent();
// grab the data bundle with all the pieces sent to us
// it contains 1. url-address and 2. caption-text
Bundle myBundle = myLocalIntent.getExtras();
urlAddress = myBundle.getString("urlAddress");
urlCaption = myBundle.getString("urlCaption");
System.out.println("urlAddress ####" + urlAddress); // value from
// MainActivity
// http://www.npr.org/rss/rss.php?id=1007
System.out.println("urlCaption####" + urlCaption); // Test RSS
// top caption for this screen
String todayStr = MainActivity.niceDate();
this.setTitle("NPR -" + urlCaption + " \t" + todayStr);
// clicking a line shows more about selected news item
myListView = (ListView) this.findViewById(R.id.myListView);
myListView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> _av, View _v, int _index,
long _id) {
// TODO Auto-generated method stub
System.out.println("item click index"+_index);
selectedNewsItem = newsList.get(_index);
showNiceDialogBox(selectedNewsItem, context);
}
});
}// onCreate
@Override
protected void onResume() {
super.onResume();
cNTS = new ConnectToServer(NPRNewsDetails.this,
myListView, newsList);
Log.i("onResum", "I'm Resume");
cNTS.execute(urlAddress);
Log.i("onResum", "I'm Resume");
}
@Override
protected void onDestroy() {
// TODO Auto-generated method stub
}
public void showNiceDialogBox(SingleNewsItem selectedNewsItem,
Context context) {
// assemble a nice looking dialog box
try {
final Uri myLink = Uri.parse(selectedNewsItem.getLink());
AlertDialog.Builder myBuilder = new AlertDialog.Builder(this);
myBuilder
.setIcon(R.drawable.ic_launcher)
.setTitle(urlCaption)
.setMessage(
selectedNewsItem.getTitle() + "\n\n"
+ selectedNewsItem.getDescription() + "\n")
.setPositiveButton("Close", null)
.setNegativeButton("More", new OnClickListener() {
public void onClick(DialogInterface dialog, int whichOne) {
// use native web browsing
Intent webIntent = new Intent(Intent.ACTION_VIEW,
myLink);
startActivity(webIntent);
}
})// setNegativeButton
.create();
myBuilder.show();
} catch (Exception e) {
e.printStackTrace();
}
}// showNiceDialogBox
}
package com.example.testrss;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.w3c.dom.DOMException;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import android.content.Context;
import android.os.AsyncTask;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;
public class ConnectToServer extends AsyncTask
{
ListView myListView;
Context context;
ArrayList<SingleNewsItem> newsList = new ArrayList<SingleNewsItem>();
public ConnectToServer(Context context, ListView myListView, ArrayList<SingleNewsItem> newsList)
{
this.context = context;
this.myListView = myListView;
this.newsList.addAll(newsList);
}
@Override
protected Object doInBackground(Object... params)
{
try
{
String urlAddress = (String) params[0];
URL url = new URL(urlAddress);
URLConnection connection;
connection = url.openConnection();
HttpURLConnection httpConnection = (HttpURLConnection) connection;
int responseCode = httpConnection.getResponseCode();
if (responseCode == HttpURLConnection.HTTP_OK) {
InputStream in = httpConnection.getInputStream();
DocumentBuilderFactory dbf = DocumentBuilderFactory
.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document dom = db.parse(in);
Element docEle = dom.getDocumentElement();
// NodeListnl= docEle.getElementsByTagName("entry");
NodeList nl = docEle.getElementsByTagName("item");
if ((nl != null) && (nl.getLength() > 0)) {
for (int i = 0; i < nl.getLength(); i++) {
dissectNode(nl, i);
}// for
}// if
}// if
int layoutID = R.layout.my_simple_list_item;
ArrayAdapter<SingleNewsItem> aaNews = new ArrayAdapter<SingleNewsItem>(this.context, layoutID, newsList);
myListView.setAdapter(aaNews);
}
catch (MalformedURLException e) {
System.out.println("Malformed error");
e.printStackTrace();
} catch (IOException e) {
System.out.println("IO error");
e.printStackTrace();
} catch (ParserConfigurationException e) {
System.out.println("Parser error");
e.printStackTrace();
} catch (SAXException e) {
System.out.println("SAX Error");
e.printStackTrace();
}
return null;
}
public void dissectNode(NodeList nl, int i) {
try {
Element entry = (Element) nl.item(i);
Element title = (Element) entry.getElementsByTagName("title").item(
0);
Element description = (Element) entry.getElementsByTagName(
"description").item(0);
Element pubDate = (Element) entry.getElementsByTagName("pubDate")
.item(0);
Element link = (Element) entry.getElementsByTagName("link").item(0);
String titleValue = title.getFirstChild().getNodeValue();
String descriptionValue = description.getFirstChild()
.getNodeValue();
String dateValue = pubDate.getFirstChild().getNodeValue();
String linkValue = link.getFirstChild().getNodeValue();
SingleNewsItem singleItem = new SingleNewsItem(dateValue,
titleValue, descriptionValue, linkValue);
newsList.add(singleItem);
} catch (DOMException e) {
e.printStackTrace();
}
}// dissectNode
@Override
protected void onPostExecute(Object result)
{
// TODO Auto-generated method stub
super.onPostExecute(result);
}
}
package com.example.testrss；
导入java.io.IOException；
导入java.io.InputStream；
导入java.net.HttpURLConnection；
导入java.net.MalformedURLException；
导入java.net.URL；
导入java.net.URLConnection；
导入java.util.ArrayList；
导入javax.xml.parsers.DocumentBuilder；
导入javax.xml.parsers.DocumentBuilderFactory；
导入javax.xml.parsers.parserConfiguration异常；
导入javax.xml.parsers.SAXParser；
导入javax.xml.parsers.SAXParserFactory；
导入org.w3c.dom.domeException；
导入org.w3c.dom.Document；
导入org.w3c.dom.Element；
导入org.w3c.dom.NodeList；
导入org.xml.sax.SAXException；
导入org.xml.sax.xml