我有一个正在尝试在ASUS eee TF101（未植根）上调试的应用程序，它无法正常工作。每当我在Esclipse中单击“调试”时，我的ASUS就会显示“应用程序....已意外停止。请重试。”错误信息。我可以在我的EVO（root用户）和DroidX（非root用户）上运行此程序，而不会出现任何问题。我确保所有适用的设置也都已应用（Setting up a Device for Development），但仍然无法使用。奇怪的是，如果我在onCreate事件的第二行代码中放置了一个断点，它甚至没有在此处中断：
boolean bNetworkConnected = true;
我认为一个简单的赋值语句可用于断点，但不会在断点处中断。
有什么想法吗？
更新
Maxim，我也无法在发布模式下运行它。我已经确保MainActivity是清单文件中指定的一项（请记住，它在我的evo和droidx上运行）。这是我在发布模式下运行时的LogCat副本：
02-14 10:31:21.107: D/dalvikvm(5934): GC_FOR_ALLOC freed 43K, 4% free 6370K/6595K, paused 40ms
02-14 10:31:21.117: I/dalvikvm-heap(5934): Grow heap (frag case) to 6.767MB for 513744-byte allocation
02-14 10:31:21.157: D/dalvikvm(5934): GC_FOR_ALLOC freed <1K, 4% free 6872K/7111K, paused 25ms
02-14 10:31:21.197: E/GetStringFromWebService ERROR-(5934): java.lang.RuntimeException: android.os.NetworkOnMainThreadException
02-14 10:31:21.207: E/GetStringFromWebService ERROR-(5934): java.lang.RuntimeException: android.os.NetworkOnMainThreadException
02-14 10:31:21.207: E/GetIntFromWebService ERROR-(5934): java.lang.RuntimeException: java.lang.NumberFormatException: Invalid int: "null"
02-14 10:31:21.207: E/GetStringFromWebService ERROR-(5934): java.lang.RuntimeException: android.os.NetworkOnMainThreadException
02-14 10:31:21.207: D/AndroidRuntime(5934): Shutting down VM
02-14 10:31:21.207: W/dalvikvm(5934): threadid=1: thread exiting with uncaught exception (group=0x40221760)
02-14 10:31:21.227: D/dalvikvm(5934): GC_CONCURRENT freed 67K, 3% free 6908K/7111K, paused 2ms+4ms
02-14 10:31:21.227: E/AndroidRuntime(5934): FATAL EXCEPTION: main
02-14 10:31:21.227: E/AndroidRuntime(5934): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.adacel.app/com.adacel.app.MainActivity}: java.lang.NullPointerException
02-14 10:31:21.227: E/AndroidRuntime(5934): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1815)
02-14 10:31:21.227: E/AndroidRuntime(5934): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1831)
02-14 10:31:21.227: E/AndroidRuntime(5934): at android.app.ActivityThread.access$500(ActivityThread.java:122)
02-14 10:31:21.227: E/AndroidRuntime(5934): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1024)
02-14 10:31:21.227: E/AndroidRuntime(5934): at android.os.Handler.dispatchMessage(Handler.java:99)
02-14 10:31:21.227: E/AndroidRuntime(5934): at android.os.Looper.loop(Looper.java:132)
02-14 10:31:21.227: E/AndroidRuntime(5934): at android.app.ActivityThread.main(ActivityThread.java:4123)
02-14 10:31:21.227: E/AndroidRuntime(5934): at java.lang.reflect.Method.invokeNative(Native Method)
02-14 10:31:21.227: E/AndroidRuntime(5934): at java.lang.reflect.Method.invoke(Method.java:491)
02-14 10:31:21.227: E/AndroidRuntime(5934): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:841)
02-14 10:31:21.227: E/AndroidRuntime(5934): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:599)
02-14 10:31:21.227: E/AndroidRuntime(5934): at dalvik.system.NativeStart.main(Native Method)
02-14 10:31:21.227: E/AndroidRuntime(5934): Caused by: java.lang.NullPointerException
02-14 10:31:21.227: E/AndroidRuntime(5934): at com.adacel.app.MainActivity.GetLatestData(MainActivity.java:300)
02-14 10:31:21.227: E/AndroidRuntime(5934): at com.adacel.app.MainActivity.LoadWithNetworkConnectivity(MainActivity.java:220)
02-14 10:31:21.227: E/AndroidRuntime(5934): at com.adacel.app.MainActivity.onCreate(MainActivity.java:79)
02-14 10:31:21.227: E/AndroidRuntime(5934): at android.app.Activity.performCreate(Activity.java:4397)
02-14 10:31:21.227: E/AndroidRuntime(5934): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1048)
02-14 10:31:21.227: E/AndroidRuntime(5934): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1779)
02-14 10:31:21.227: E/AndroidRuntime(5934): ... 11 more
看起来好像在方法GetStringFromWebService上出错了。但是奇怪的部分是...。直到MainActivity中的更进一步时才进行该调用...我上面的赋值调用（bNetworkConnected = true）是代码的第二行，紧接在super.onCreate（savedInstance）之后。 ..so好像根本看不到我在此处设置的断点。
MainActivity代码
public static final String TAG = "SQLiteDebug";
private ListView mListViewIssues;
private static final String NameSpace = "RemoteWebService";
private static final String URL = "http://ws.simcare.biz/Service1.asmx";
private static final String DBVersionKey = "DBVersion";
private static final String PreferencesNotLoaded = "User Preferences could not be loaded. \n\nThis app will now close.";
private static final String CustomerCodeNotLoaded = "The Customer Code could not be loaded. \n\nThis app will now close.";
private static final String LocationShortNameNotLoaded = "The Location Short Name could not be loaded. \n\nThis app will now close.";
private static final String DBVersionNotLoaded = "The Database Version could not be loaded. \n\nThis app will now close.";
private static final String App_File = "app_file.xml";
private static final String AppNotConnectedTitle = "App Not Connected to Network";
Boolean ConnectedToNetwork = false;
TextView tvFooter;
int DBVersion = 1;
IssueInfoCreator creator;
AppPreferences appPrefs = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.footer_layout);
//For testing network connectivity only.
boolean bNetworkConnected = true;
//If there's a network connection available, get latest data.
//if(NetworkUtils.getInstance(this).isOnline(this)){
if(bNetworkConnected){
//Load data from web service and get latest data.
LoadWithNetworkConnectivity();
}
else{
InputStream isAppFile = null;
try {
isAppFile = getBaseContext().getAssets().open(App_File);
} catch (IOException e) {
ShowMessageAndClose(PreferencesNotLoaded);
return;
}
Scanner scanner = new Scanner(isAppFile);
String sScannerContents = scanner.useDelimiter("\\A").next();
Document doc = XMLfunctions.XMLfromString(sScannerContents);
try{
if(LoadPreferences(doc))
DBVersion = Integer.valueOf(appPrefs.getDBVersion());
}catch(Exception ex){
Log.e("INT PARSE ERROR", ex.getStackTrace().toString());
}
//Load data from local db only.
LoadWithoutNetworkConnectivity();
}
//Load listview control.
setContentView(R.layout.main);
//Setup Refresh button listener.
Button btn = (Button) findViewById(R.id.btnRefresh);
btn.setOnClickListener(btnRefreshClick);
final Context context = getBaseContext();
mListViewIssues = (ListView)findViewById(R.id.listIssues);
//Load Footer View.
View footerView =((LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE)).inflate(R.layout.footer_layout, null, false);
tvFooter = (TextView)footerView.findViewById(R.id.footerText);
tvFooter.setText("DBVersion = " + String.valueOf(DBVersion));
mListViewIssues.addFooterView(footerView);
creator = new IssueInfoCreator(this, DBVersion);
creator.open();
//add data to listview through adapter.
mListViewIssues.setAdapter(new IssueInfoAdapter(this, creator.queryAll()));
creator.close();
}
LoadWithNetworkConnectivity代码：
private void LoadWithNetworkConnectivity(){
//Set the Titlebar to the stored value in the DB.
String SoapAction = "RemoteWebService/GetApplicationTitle";
String MethodName = "GetApplicationTitle";
setTitle(GetStringFromWebService(NameSpace, MethodName, SoapAction, URL, "ApplicationName", "AndroidApp"));
//Get the DBVersion.
SoapAction = "RemoteWebService/GetDBVersion";
MethodName = "GetDBVersion";
DBVersion = GetIntFromWebService(NameSpace, MethodName, SoapAction, URL, "ApplicationName", "AndroidApp");
//Write DBVersion to Preferences.
Editor ePreferences = this.getPreferences(Context.MODE_PRIVATE).edit();
ePreferences.putInt(DBVersionKey, DBVersion);
ePreferences.commit();
//Get Issues for this Customer/Location.
SoapAction = "RemoteWebService/GetOpenIssues";
MethodName = "GetOpenIssues";
SoapPrimitive xmlData = GetDataFromWebService(NameSpace, MethodName, SoapAction, URL, "ApplicationName", "AndroidApp");
try {
GetLatestData(xmlData);
} catch (ParserConfigurationException e) {
e.printStackTrace();
} catch (SAXException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
//Set flag.
ConnectedToNetwork = true;
}
GetDataFromWebService代码：
public SoapPrimitive GetDataFromWebService(String NameSpace, String MethodName, String SoapAction, String URL, String argName, String argValue){
try {
SoapObject request = new SoapObject(NameSpace, MethodName);
HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.dotNet = true;
request.addProperty(argName, argValue);
if(MethodName == "GetOpenIssues")
{
request.addProperty("CustomerCode", "ABC");
request.addProperty("LocationShortName", "KBIF");
}
envelope.setOutputSoapObject(request);
androidHttpTransport.call(SoapAction, envelope);
SoapPrimitive responseData = (SoapPrimitive) envelope.getResponse();
return responseData;
}
catch (Exception e) {
Log.e("GetStringFromWebService ERROR-", new RuntimeException(e).toString());
return null;
}
}
GetLatestData代码：
public void GetLatestData(SoapPrimitive xml)throws ParserConfigurationException, SAXException, IOException{
//get the factory
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
//Using factory get an instance of document builder
DocumentBuilder db = dbf.newDocumentBuilder();
Document doc;
//parse using builder to get DOM representation of the XML file
InputSource is = new InputSource(new StringReader(xml.toString()));
doc = db.parse(is);
//Clear out Issues table first.
creator = new IssueInfoCreator(this, DBVersion);
creator.open();
creator.ClearIssueTable();
creator.close();
NodeList nodes = doc.getElementsByTagName("Table");
for(int i = 0; i < nodes.getLength(); i++) {
IssueInfo issue = new IssueInfo();
Element e = (Element)nodes.item(i);
issue.setIssueNumber(Long.parseLong(XMLfunctions.getValue(e, "IssueID")));
issue.setIssueSummary(XMLfunctions.getValue(e, "IssueSummary"));
issue.setDateReceived(DateFormat.format("MM/dd/yyyy hh:mm:ss", System.currentTimeMillis()).toString());
if(issue.getIssueNumber() > 0 && issue.getIssueSummary() != null){
creator = new IssueInfoCreator(this, DBVersion);
creator.open();
creator.InsertIssue(issue.getIssueNumber(), issue.getDateReceived(), issue.getIssueSummary());
creator.close();
}
}
}
那里是您要求的代码。...总之，应用程序启动，检查是否存在有效的网络连接（在这种情况下，我只是放了一个bool标志，因此我不必一直拔下电缆或断开连接wifi以使其正常工作/不工作），并运行适当的方法。我将标志设置为true，以便它调用LoadWithNetworkConnectivity（）方法。...此方法转至我们的.NET Web服务，并获取应用程序标题，DBVersion和OpenIssues。然后，在此方法中，它调用“ GetLatestData”方法，并将XML解析为我创建的Issue对象。同样，所有这些都可以在模拟器，evo和droidx上找到，而不仅仅是我的ASUS平板电脑。
更新＃2-解决方案
我跳过了尝试使我的平板电脑调试的工作，并为3.2 OS创建了一个模拟器（我之前在2.3.3模拟器上运行它）。因此，现在我可以调试并查看错误的出处。似乎在第一行中首先出错：
setTitle(GetStringFromWebService(NameSpace, MethodName, SoapAction, URL, "ApplicationName", "AndroidApp"));
如果将其放在字符串中，它将返回null，而我在LogCat中得到的错误是：
02-14 16:01:21.177: E/GetStringFromWebService ERROR-(510): java.lang.RuntimeException: android.os.NetworkOnMainThreadException
就像Maxim所说的那样，您必须将网络连接放在自己的线程上。 Android SDK文档也对NetworkOnMainThreadException进行了说明。它说的不真实...在较旧的平台上允许使用，但在Honeycomb及更高版本上不允许，这就是ASUS平板电脑正在运行的原因，这就是错误发生的原因。
感谢Maxim帮助我！一旦获得将网络事件置于其自己的线程上的代码，我将尝试更新此文章，以便其他人知道。
最佳答案
从LogCat错误中说出可以隐藏问题的位置。
无法启动活动ComponentInfo {com.adacel.app/com.adacel.app.MainActivity}：java.lang.NullPointerException，这意味着您在某处获得null作为对象并尝试从该null中获取某些东西。
同样是ERROR-（5934）：java.lang.RuntimeException：java.lang.NumberFormatException：无效的int：“ null”。
NetworkOnMainThreadException（网络调用在主线程中完成）
首先，由于（NetworkOnMainThreadException），请确保WebService调用在单独的线程中完成。其次，您将从服务中获取正确的数据。看看LoadWithNetworkConnectivity（）
关于android - Eclipse无法在ASUS eee TF101上进行调试，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/9278943/