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  • Passing parameters between interrupt handlers on a Cortex-M3 ...

    - by Captain NedD
    I'm building a light kernel for a Cortex-M3. From a high priority interrupt I'd like to invoke some code to run in a lower priority interrupt and pass some parameters along. I don't want to use a queue to post work to the lower priority interrupt. I just have a buffer and size to pass to it. In the proramming manual it says that the SVC interrupt handler is synchronous which presumably means that if you invoke it from an interrupt that's a lower priority than SVC's handler it gets called immediately (the upshot of this being that you can pass parameters to it as though it were a function call (a little like the BIOS calls in MS-DOS)). I'd like to do it the other way: passing parameters from a high priority interrupt to a lower priority one (at the moment I'm doing it by leaving the parameters in a fixed location in memory). What's the best way to do this (if at all possible)? Thanks,

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  • close window in Tkinter message box

    - by rejinacm
    Hello, link text How to handle the "End Now" error in the below code: import Tkinter from Tkconstants import * import tkMessageBox tk = Tkinter.Tk() class MyApp: def __init__(self,parent): self.myparent = parent self.frame = Tkinter.Frame(tk,relief=RIDGE,borderwidth=2) self.frame.pack() self.message = Tkinter.Message(tk,text="Symbol Disolay") label=Tkinter.Label(self.frame,text="Is Symbol Displayed") label.pack() self.button1=Tkinter.Button(self.frame,text="YES") self.button1.pack(side=BOTTOM) self.button1.bind("<Button-1>", self.button1Click) self.button2=Tkinter.Button(self.frame,text="NO") self.button2.pack() self.button2.bind("<Button-1>", self.button2Click) self.myparent.protocol("WM_DELETE_WINDOW", self.handler) def button1Click(self, event): print "pressed yes" def button2Click(self, event): print "pressed no" def handler(self): if tkMessageBox.askokcancel("Quit?", "Are you sure you want to quit?"): self.myparent.quit() myapp = MyApp(tk) tk.mainloop()

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  • android hellomap example giving exception

    - by avin
    06-14 22:13:33.992: ERROR/AndroidRuntime(331): Uncaught handler: thread main exiting due to uncaught exception 06-14 22:13:34.031: ERROR/AndroidRuntime(331): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example/com.example.HelloMap}: android.view.InflateException: Binary XML file line #6: Error inflating class com.google.android.maps.MapView 06-14 22:13:34.031: ERROR/AndroidRuntime(331): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2496) 06-14 22:13:34.031: ERROR/AndroidRuntime(331): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2512) 06-14 22:13:34.031: ERROR/AndroidRuntime(331): at android.app.ActivityThread.access$2200(ActivityThread.java:119) 06-14 22:13:34.031: ERROR/AndroidRuntime(331): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1863) 06-14 22:13:34.031: ERROR/AndroidRuntime(331): at android.os.Handler.dispatchMessage(Handler.java:99) 06-14 22:13:34.031: ERROR/AndroidRuntime(331): at android.os.Looper.loop(Looper.java:123) 06-14 22:13:34.031: ERROR/AndroidRuntime(331): at android.app.ActivityThread.main(ActivityThread.java:4363) 06-14 22:13:34.031: ERROR/AndroidRuntime(331): at java.lang.reflect.Method.invokeNative(Native Method) 06-14 22:13:34.031: ERROR/AndroidRuntime(331): at java.lang.reflect.Method.invoke(Method.java:521) 06-14 22:13:34.031: ERROR/AndroidRuntime(331): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860) 06-14 22:13:34.031: ERROR/AndroidRuntime(331): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 06-14 22:13:34.031: ERROR/AndroidRuntime(331): at dalvik.system.NativeStart.main(Native Method) 06-14 22:13:34.031: ERROR/AndroidRuntime(331): Caused by: android.view.InflateException: Binary XML file line #6: Error inflating class com.google.android.maps.MapView 06-14 22:13:34.031: ERROR/AndroidRuntime(331): at android.view.LayoutInflater.createView(LayoutInflater.java:513) 06-14 22:13:34.031: ERROR/AndroidRuntime(331): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:565) 06-14 22:13:34.031: ERROR/AndroidRuntime(331): at android.view.LayoutInflater.rInflate(LayoutInflater.java:618) 06-14 22:13:34.031: ERROR/AndroidRuntime(331): at android.view.LayoutInflater.inflate(LayoutInflater.java:407) 06-14 22:13:34.031: ERROR/AndroidRuntime(331): at android.view.LayoutInflater.inflate(LayoutInflater.java:320) 06-14 22:13:34.031: ERROR/AndroidRuntime(331): at android.view.LayoutInflater.inflate(LayoutInflater.java:276) 06-14 22:13:34.031: ERROR/AndroidRuntime(331): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:198) 06-14 22:13:34.031: ERROR/AndroidRuntime(331): at android.app.Activity.setContentView(Activity.java:1622) 06-14 22:13:34.031: ERROR/AndroidRuntime(331): at com.example.HelloMap.onCreate(HelloMap.java:16) 06-14 22:13:34.031: ERROR/AndroidRuntime(331): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 06-14 22:13:34.031: ERROR/AndroidRuntime(331): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2459) 06-14 22:13:34.031: ERROR/AndroidRuntime(331): ... 11 more 06-14 22:13:34.031: ERROR/AndroidRuntime(331): Caused by: java.lang.reflect.InvocationTargetException 06-14 22:13:34.031: ERROR/AndroidRuntime(331): at com.google.android.maps.MapView.(MapView.java:237) 06-14 22:13:34.031: ERROR/AndroidRuntime(331): at java.lang.reflect.Constructor.constructNative(Native Method) 06-14 22:13:34.031: ERROR/AndroidRuntime(331): at java.lang.reflect.Constructor.newInstance(Constructor.java:446) 06-14 22:13:34.031: ERROR/AndroidRuntime(331): at android.view.LayoutInflater.createView(LayoutInflater.java:500) 06-14 22:13:34.031: ERROR/AndroidRuntime(331): ... 21 more 06-14 22:13:34.031: ERROR/AndroidRuntime(331): Caused by: java.lang.IllegalArgumentException: MapViews can only be created inside instances of MapActivity. 06-14 22:13:34.031: ERROR/AndroidRuntime(331): at com.google.android.maps.MapView.(MapView.java:281) 06-14 22:13:34.031: ERROR/AndroidRuntime(331): at com.google.android.maps.MapView.(MapView.java:254) 06-14 22:13:34.031: ERROR/AndroidRuntime(331): ... 25 more i had done all configuration plz let ny1 got idea?

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  • Timeout event in netty 4

    - by user1819425
    Hi I would like receive an event where messageReceived does not get called within an expected time. I tried with ReadTimeoutHandler where it generates exception where I can handle in exceptionCaught() where I would would do some work and return without closing the context. but right after that I got a bunch of exception Nov 18, 2012 8:56:34 AM io.netty.channel.ChannelInitializer WARNING: Failed to initialize a channel. Closing: [id: 0xa81de260, /127.0.0.1:59763 = /127.0.0.1:59724] io.netty.channel.ChannelHandlerLifeCycleException: io.netty.handler.timeout.ReadTimeoutHandler is not a @Sharable handler, so can't be added or removed multiple times. at io.netty.channel.DefaultChannelPipeline.callBeforeAdd(DefaultChannelPipeline.java:629) at io.netty.channel.DefaultChannelPipeline.addLast0(DefaultChannelPipeline.java:173) Am I doing correctly? Thanks

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  • LazyInitializationException when adding to a list that is held within a entity class using hibernate

    - by molleman
    Right so i am working with hibernate gilead and gwt to persist my data on users and files of a website. my users have a list of file locations. i am using annotations to map my classes to the database. i am getting a org.hibernate.LazyInitializationException when i try to add file locations to the list that is held in the user class. this is a method below that is overridden from a external file upload servlet class that i am using. when the file uploads it calls this method. the user1 is loaded from the database elsewhere. the exception occurs at user1.getFileLocations().add(fileLocation); . i dont understand it really at all.! any help would be great. the stack trace of the error is below public String executeAction(HttpServletRequest request, List<FileItem> sessionFiles) throws UploadActionException { for (FileItem item : sessionFiles) { if (false == item.isFormField()) { try { YFUser user1 = (YFUser)getSession().getAttribute(SESSION_USER); // This is the location where a file will be stored String fileLocationString = "/Users/Stefano/Desktop/UploadedFiles/" + user1.getUsername(); File fl = new File(fileLocationString); fl.mkdir(); // so here i will create the a file container for my uploaded file File file = File.createTempFile("upload-", ".bin",fl); // this is where the file is written to disk item.write(file); // the FileLocation object is then created FileLocation fileLocation = new FileLocation(); fileLocation.setLocation(fileLocationString); //test System.out.println("file path = "+file.getPath()); user1.getFileLocations().add(fileLocation); //the line above is where the exception occurs } catch (Exception e) { throw new UploadActionException(e.getMessage()); } } removeSessionFileItems(request); } return null; } //This is the class file for a Your Files User @Entity @Table(name = "yf_user_table") public class YFUser implements Serializable,ILightEntity { @Id @GeneratedValue(strategy = GenerationType.AUTO) @Column(name = "user_id",nullable = false) private int userId; @Column(name = "username") private String username; @Column(name = "password") private String password; @Column(name = "email") private String email; @ManyToMany(cascade = CascadeType.ALL) @JoinTable(name = "USER_FILELOCATION", joinColumns = { @JoinColumn(name = "user_id") }, inverseJoinColumns = { @JoinColumn(name = "locationId") }) private List<FileLocation> fileLocations = new ArrayList<FileLocation>() ; public YFUser(){ } public int getUserId() { return userId; } private void setUserId(int userId) { this.userId = userId; } public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } public String getEmail() { return email; } public void setEmail(String email) { this.email = email; } public List<FileLocation> getFileLocations() { if(fileLocations ==null){ fileLocations = new ArrayList<FileLocation>(); } return fileLocations; } public void setFileLocations(List<FileLocation> fileLocations) { this.fileLocations = fileLocations; } /* public void addFileLocation(FileLocation location){ fileLocations.add(location); }*/ @Override public void addProxyInformation(String property, Object proxyInfo) { // TODO Auto-generated method stub } @Override public String getDebugString() { // TODO Auto-generated method stub return null; } @Override public Object getProxyInformation(String property) { // TODO Auto-generated method stub return null; } @Override public boolean isInitialized(String property) { // TODO Auto-generated method stub return false; } @Override public void removeProxyInformation(String property) { // TODO Auto-generated method stub } @Override public void setInitialized(String property, boolean initialised) { // TODO Auto-generated method stub } @Override public Object getValue() { // TODO Auto-generated method stub return null; } } @Entity @Table(name = "fileLocationTable") public class FileLocation implements Serializable { @Id @GeneratedValue(strategy = GenerationType.AUTO) @Column(name = "locationId", updatable = false, nullable = false) private int ieId; @Column (name = "location") private String location; public FileLocation(){ } public int getIeId() { return ieId; } private void setIeId(int ieId) { this.ieId = ieId; } public String getLocation() { return location; } public void setLocation(String location) { this.location = location; } } Apr 2, 2010 11:33:12 PM org.hibernate.LazyInitializationException <init> SEVERE: failed to lazily initialize a collection of role: com.example.client.YFUser.fileLocations, no session or session was closed org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: com.example.client.YFUser.fileLocations, no session or session was closed at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:380) at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.java:372) at org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:365) at org.hibernate.collection.AbstractPersistentCollection.write(AbstractPersistentCollection.java:205) at org.hibernate.collection.PersistentBag.add(PersistentBag.java:297) at com.example.server.TestServiceImpl.saveFileLocation(TestServiceImpl.java:132) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at net.sf.gilead.gwt.PersistentRemoteService.processCall(PersistentRemoteService.java:174) at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:224) at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62) at javax.servlet.http.HttpServlet.service(HttpServlet.java:713) at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:729) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java:49) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:324) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505) at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:843) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:647) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:396) at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488) Apr 2, 2010 11:33:12 PM net.sf.gilead.core.PersistentBeanManager clonePojo INFO: Third party instance, not cloned : org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: com.example.client.YFUser.fileLocations, no session or session was closed

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  • Custom Control Not Playing Nice With PropertyGrid

    - by lumberjack4
    I have a class that is implementing a custom ToolStripItem. Everything seems to work great until I try to add the item to a ContextMenuStrip at design time. If I try to add my custom control straight from the ContextMenuStrip the PropertyGrid freezes up and will not let me modify my Checked or Text properties. But if I go into the ContextMenuStrip PropertyGrid and add my custom control through the Items(...) property, I can modify the custom control just fine within that dialog. I'm not sure if I'm missing an attribute somewhere of if its a problem with the underlying code. Here is a copy of the CustomToolStripItem class. As you can see, its a very simple class. [ToolStripItemDesignerAvailability(ToolStripItemDesignerAvailability.ContextMenuStrip)] public class CustomToolStripItem : ToolStripControlHost { #region Public Properties [Description("Gets or sets a value indicating whether the object is in the checked state")] [ReadOnly(false)] public bool Checked { get { return checkBox.Checked; } set { checkBox.Checked = value; } } [Description("Gets or sets the object's text")] [ReadOnly(false)] public override string Text { get { return checkBox.Text; } set { checkBox.Text = value; } } #endregion Public Properties #region Public Events public event EventHandler CheckedChanged; #endregion Public Events #region Constructors public CustomToolStripItem() : base(new FlowLayoutPanel()) { // Setup the FlowLayoutPanel. controlPanel = (FlowLayoutPanel)base.Control; controlPanel.BackColor = Color.Transparent; // Add the child controls. checkBox.AutoSize = true; controlPanel.Controls.Add(checkBox); ContextMenuStrip strip = new ContextMenuStrip(); } #endregion Constructors #region Protected Methods protected override void OnSubscribeControlEvents(Control control) { base.OnSubscribeControlEvents(control); checkBox.CheckedChanged += new EventHandler(CheckChanged); } protected override void OnUnsubscribeControlEvents(Control control) { base.OnUnsubscribeControlEvents(control); checkBox.CheckedChanged -= new EventHandler(CheckChanged); } #endregion Protected Methods #region Private Methods private void CheckChanged(object sender, EventArgs e) { // Throw the CustomToolStripItem's CheckedChanged event EventHandler handler = CheckedChanged; if (handler != null) { handler(sender, e); } } #endregion Private Methods #region Private Fields private FlowLayoutPanel controlPanel; private CheckBox checkBox = new CheckBox(); #endregion Private Fields }

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  • WPF command/click argument

    - by Joel Barsotti
    So I have a background in ASP.NET where a button could have a click handler or a command handler and then a command argument. That pattern was great for when you had a bunch of buttons that basically needed to execute the same block of code with only a slightly different argument. Is there a collary in WPF? From what I've seen of the Command in WPF is that it revolves around an action that is independent of the control that invokes it (and still doesn't provide a way to provide an argument). Which is not really what I need.

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  • Scanf with Signals

    - by jreid42
    I have a signal that blocks SIGINT and basically says "Sorry, you can't quit.\n" The issue is this can occur during a scanf. When this occurs during a scanf, scanf takes in the printf as input. How can I do a printf that will cause scanf to basically hit the enter key automatically. I don't care that I am getting bad input. I just want to programatically finish that scanf with a printf or something else. Process: scanf("get stuff") - User is able to enter stuff in. - SIGINT occurs and goes to my handler. - Handler says "Blah blah blah" to stdout. - Scanf has taken this blah blah blah and is waiting for more input. How do I make it so that when I return scanf is finished (don't care what it has gathered I just want it to continue without user help).

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  • Add a delay to OnContactDown events for Surface controls

    - by RTigger
    We're using the Controls.PreviewContactDown, PreviewContactUp, and PreviewContactChanged events to capture tagged items being placed, removed, and moved on the Surface, which works great in the Simulator application that comes with the surface. On an actual Surface if you moved a tagged item too quickly the cameras actually lose focus of the tag, assume it was removed, and then re-capture it when it stops moving. That provides a pretty poor experience for our clients. What I'm proposing is a way to override or create a new event that would respond to tagged item events, but not fire the event handler until after a delay... i.e. if "ContactUp" is fired, wait 100ms and THEN execute the event handler. Ideally we'd just be able to use an alternate attached property to define these event handlers, i.e. <Panel local:TagDown="TagDownEventHandler" /> And if we could get it to use ICommand objects instead of event handlers that'd be even better.

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  • Why does KeyDown event not have access to the current value of bound variable?

    - by Edward Tanguay
    In the example below: I start program, type text, click button, see text above. Press ENTER see text again. BUT: I start program, type text, press ENTER, see no text. It seems that the KeyDown event doesn't get access to the current value of the bound variable, as if it is always "one behind". What do I have to change so that when I press ENTER I have access to the value that is in the textbox so I can add it to the chat window? XAML: <Window x:Class="TestScroll.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Window1" Height="290" Width="300" Background="#eee"> <StackPanel Margin="10"> <ScrollViewer Height="200" Width="260" Margin="0 0 0 10" VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Auto"> <TextBlock Text="{Binding TextContent}" Background="#fff"/> </ScrollViewer> <StackPanel HorizontalAlignment="Left" Orientation="Horizontal"> <TextBox x:Name="TheLineTextBox" Text="{Binding TheLine}" Width="205" Margin="0 0 5 0" KeyDown="TheLineTextBox_KeyDown"/> <Button Content="Enter" Click="Button_Click"/> </StackPanel> </StackPanel> </Window> Code-Behind: using System; using System.Windows; using System.Windows.Input; using System.ComponentModel; namespace TestScroll { public partial class Window1 : Window, INotifyPropertyChanged { #region ViewModelProperty: TextContent private string _textContent; public string TextContent { get { return _textContent; } set { _textContent = value; OnPropertyChanged("TextContent"); } } #endregion #region ViewModelProperty: TheLine private string _theLine; public string TheLine { get { return _theLine; } set { _theLine = value; OnPropertyChanged("TheLine"); } } #endregion public Window1() { InitializeComponent(); DataContext = this; TheLineTextBox.Focus(); } private void Button_Click(object sender, RoutedEventArgs e) { AddLine(); } void AddLine() { TextContent += TheLine + Environment.NewLine; } private void TheLineTextBox_KeyDown(object sender, KeyEventArgs e) { if (e.Key == Key.Return) { AddLine(); } } #region INotifiedProperty Block public event PropertyChangedEventHandler PropertyChanged; protected void OnPropertyChanged(string propertyName) { PropertyChangedEventHandler handler = PropertyChanged; if (handler != null) { handler(this, new PropertyChangedEventArgs(propertyName)); } } #endregion } }

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  • ClassCastException when casting custom View subclass

    - by Jens Jacob
    Hi I've run into an early problem with developing for android. I've made my own custom View (which works well). In the beginning i just added it to the layout programmatically, but i figured i could try putting it into the XML layout instead (for consistency). So what i got is this: main.xml: [...] <sailmeter.gui.CompassView android:id="@+id/compassview1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@id/widget55" android:background="@color/white" /> [...] CompassView.java: public class CompassView extends View { } SailMeter.java (activity class): public class SailMeter extends Activity implements PropertyChangeListener { public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); compassview = (CompassView) findViewById(R.id.compassview1); [...] } } (Theres obviously more, but you get the point) Now, this is the stacktrace: 05-23 16:32:01.991: ERROR/AndroidRuntime(10742): Uncaught handler: thread main exiting due to uncaught exception 05-23 16:32:02.051: ERROR/AndroidRuntime(10742): java.lang.RuntimeException: Unable to start activity ComponentInfo{sailmeter.gui/sailmeter.gui.SailMeter}: java.lang.ClassCastException: android.view.View 05-23 16:32:02.051: ERROR/AndroidRuntime(10742): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2596) 05-23 16:32:02.051: ERROR/AndroidRuntime(10742): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2621) 05-23 16:32:02.051: ERROR/AndroidRuntime(10742): at android.app.ActivityThread.access$2200(ActivityThread.java:126) 05-23 16:32:02.051: ERROR/AndroidRuntime(10742): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1932) 05-23 16:32:02.051: ERROR/AndroidRuntime(10742): at android.os.Handler.dispatchMessage(Handler.java:99) 05-23 16:32:02.051: ERROR/AndroidRuntime(10742): at android.os.Looper.loop(Looper.java:123) 05-23 16:32:02.051: ERROR/AndroidRuntime(10742): at android.app.ActivityThread.main(ActivityThread.java:4595) 05-23 16:32:02.051: ERROR/AndroidRuntime(10742): at java.lang.reflect.Method.invokeNative(Native Method) 05-23 16:32:02.051: ERROR/AndroidRuntime(10742): at java.lang.reflect.Method.invoke(Method.java:521) 05-23 16:32:02.051: ERROR/AndroidRuntime(10742): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860) 05-23 16:32:02.051: ERROR/AndroidRuntime(10742): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 05-23 16:32:02.051: ERROR/AndroidRuntime(10742): at dalvik.system.NativeStart.main(Native Method) 05-23 16:32:02.051: ERROR/AndroidRuntime(10742): Caused by: java.lang.ClassCastException: android.view.View 05-23 16:32:02.051: ERROR/AndroidRuntime(10742): at sailmeter.gui.SailMeter.onCreate(SailMeter.java:51) 05-23 16:32:02.051: ERROR/AndroidRuntime(10742): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 05-23 16:32:02.051: ERROR/AndroidRuntime(10742): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2544) 05-23 16:32:02.051: ERROR/AndroidRuntime(10742): ... 11 more Why cant i cast my custom view? I need it to be that type since it has a few extra methods in it that i want to access. Should i restructure it and have another class handle the logic, and then just having the view being a view? Thanks for any help.

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  • jQuery Star Rating plugin - select in callback causes infinite loop

    - by Ian
    Using the jQuery Star Rating plugin everything works well until I select a star rating from the rating's callback handler. Simple example: $('.rating').rating({ ... callback: function(value){ $.ajax({ type: "POST", url: ... data: {rating: value}, success: function(data){ $('.rating').rating('select', 1); } }); } }); I'm guessing this infinite loop occurs because the callback is fired after a manual 'select' as well. Once a user submits their rating I'd like to 'select' the average rating across all users (this value is in data returned to the success handler). How can I do this without triggering an infinite loop?

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  • How to get access to a window that is loaded into a panel

    - by Sandor Drieënhuizen
    I'm loading an external script (that creates a new window component) into a panel, which works fine. Now, I want to access the created window from a callback function to register a closed event handler. I've tried the following: panel.load({ scripts: true, url: '/createWindow', callback: function(el, success, response, options) { panel.findByType("window")[0].on("close", function { alert("Closed"); }); } }); However, the panel seems to be empty all the time, the findByType method keeps returning an empty collection. I've tried adding events handlers for events like added to the panel but none of them got fired. So the question is: how do I access the window in the panel to register my close event handler on it?

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  • App starts in 1.5 emulator but doesn't in 1.6

    - by DixieFlatline
    My app works on 1.5 emulator and 1.5 device. When i try to start it on 1.6 emulator, it produces strange exceptions (doesn't even start). I don't have any 1.6 device to try this app if it works on a real device. I get some warnings in Eclipse ( warning: Ignoring InnerClasses attribute for an anonymous inner class that doesn't come with an associated EnclosingMethod attribute. This class was probably produced by a broken compiler.) and get cant rid of them (i think they come from some apache jars that i need to make http multipart posts). Is it possible that this jars are cause for my exceptions in 1.6 or is it something else? My logacat: 04-29 16:14:55.874: ERROR/AndroidRuntime(392): Uncaught handler: thread main exiting due to uncaught exception 04-29 16:14:55.894: ERROR/AndroidRuntime(392): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.poslji.gor/com.poslji.gor.FormFiller}: java.lang.NumberFormatException: unable to parse 'null' as integer 04-29 16:14:55.894: ERROR/AndroidRuntime(392): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2401) 04-29 16:14:55.894: ERROR/AndroidRuntime(392): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2417) 04-29 16:14:55.894: ERROR/AndroidRuntime(392): at android.app.ActivityThread.access$2100(ActivityThread.java:116) 04-29 16:14:55.894: ERROR/AndroidRuntime(392): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1794) 04-29 16:14:55.894: ERROR/AndroidRuntime(392): at android.os.Handler.dispatchMessage(Handler.java:99) 04-29 16:14:55.894: ERROR/AndroidRuntime(392): at android.os.Looper.loop(Looper.java:123) 04-29 16:14:55.894: ERROR/AndroidRuntime(392): at android.app.ActivityThread.main(ActivityThread.java:4203) 04-29 16:14:55.894: ERROR/AndroidRuntime(392): at java.lang.reflect.Method.invokeNative(Native Method) 04-29 16:14:55.894: ERROR/AndroidRuntime(392): at java.lang.reflect.Method.invoke(Method.java:521) 04-29 16:14:55.894: ERROR/AndroidRuntime(392): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791) 04-29 16:14:55.894: ERROR/AndroidRuntime(392): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549) 04-29 16:14:55.894: ERROR/AndroidRuntime(392): at dalvik.system.NativeStart.main(Native Method) 04-29 16:14:55.894: ERROR/AndroidRuntime(392): Caused by: java.lang.NumberFormatException: unable to parse 'null' as integer 04-29 16:14:55.894: ERROR/AndroidRuntime(392): at java.lang.Integer.parseInt(Integer.java:358) 04-29 16:14:55.894: ERROR/AndroidRuntime(392): at java.lang.Integer.parseInt(Integer.java:333) 04-29 16:14:55.894: ERROR/AndroidRuntime(392): at com.poslji.gor.FormFiller.nastavi(FormFiller.java:322) 04-29 16:14:55.894: ERROR/AndroidRuntime(392): at com.poslji.gor.FormFiller.onCreate(FormFiller.java:188) 04-29 16:14:55.894: ERROR/AndroidRuntime(392): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1123) 04-29 16:14:55.894: ERROR/AndroidRuntime(392): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2364)

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  • Optimizing multiple dispatch notification algorithm in C#?

    - by Robert Fraser
    Sorry about the title, I couldn't think of a better way to describe the problem. Basically, I'm trying to implement a collision system in a game. I want to be able to register a "collision handler" that handles any collision of two objects (given in either order) that can be cast to particular types. So if Player : Ship : Entity and Laser : Particle : Entity, and handlers for (Ship, Particle) and (Laser, Entity) are registered than for a collision of (Laser, Player), both handlers should be notified, with the arguments in the correct order, and a collision of (Laser, Laser) should notify only the second handler. A code snippet says a thousand words, so here's what I'm doing right now (naieve method): public IObservable<Collision<T1, T2>> onCollisionsOf<T1, T2>() where T1 : Entity where T2 : Entity { Type t1 = typeof(T1); Type t2 = typeof(T2); Subject<Collision<T1, T2>> obs = new Subject<Collision<T1, T2>>(); _onCollisionInternal += delegate(Entity obj1, Entity obj2) { if (t1.IsAssignableFrom(obj1.GetType()) && t2.IsAssignableFrom(obj2.GetType())) obs.OnNext(new Collision<T1, T2>((T1) obj1, (T2) obj2)); else if (t1.IsAssignableFrom(obj2.GetType()) && t2.IsAssignableFrom(obj1.GetType())) obs.OnNext(new Collision<T1, T2>((T1) obj2, (T2) obj1)); }; return obs; } However, this method is quite slow (measurable; I lost ~2 FPS after implementing this), so I'm looking for a way to shave a couple cycles/allocation off this. I thought about (as in, spent an hour implementing then slammed my head against a wall for being such an idiot) a method that put the types in an order based on their hash code, then put them into a dictionary, with each entry being a linked list of handlers for pairs of that type with a boolean indication whether the handler wanted the order of arguments reversed. Unfortunately, this doesn't work for derived types, since if a derived type is passed in, it won't notify a subscriber for the base type. Can anyone think of a way better than checking every type pair (twice) to see if it matches? Thanks, Robert

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  • .delegate equivalent of an existing .hover method in jQuery 1.4.2

    - by kim3er
    I have an event handler bound to the hover event using the .hover method, which is below: $(".nav li").hover(function () { $(this).addClass("hover"); }, function () { $(this).removeClass("hover"); }); It is important to note, that I require both functions within the handler to ensure synchronisation. Is it possible to rewrite the function using .delegate, as the following does not work? $(".nav").delegate("li", "hover", function () { $(this).addClass("hover"); }, function () { $(this).removeClass("hover"); }); Rich

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  • Http Modules are called on every request when using mvc/routing module

    - by MartinF
    I am developing a http module that hooks into the FormsAuthentication Module through the Authenticate event. While debugging i noticed that the module (and all other modules registered) gets hit every single time the client requests a resource (also when it requests images, stylesheets, javascript files (etc.)). This happens both when running on a IIS 7 server in integrated pipeline mode, and debugging through the webdev server (in non- integrated pipeline mode) As i am developing a website with a lot images which usually wont be cached by the client browser it will hit the modules a lot of unnessecary times. I am using MVC and its routing mechanishm (System.Web.Routing.UrlRoutingModule). When creating a new website the runAllManagedModulesForAllRequests attribute for the IIS 7 (system.webServer) section is per default set to true in the web.config, which as the name indicates make it call all modules for every single request. If i set the runAllManagedModulesForAllRequests attribute to false, no modules will get called. It seems that the reason for this is because of the routing module or mvc (dont know excactly why), which causes that the asp.net (aspx) handler never gets called and therefore the events and the modules never gets called (one time only like supposed). I tested this by trying to call "mydomain.com/Default.aspx" instead of just "mydomain.com/" and correctly it calls the modules only once like it is supposed. How do i fix this so it only calls the modules once when the page is requested and not also when all other resources are requested ? Is there some way i can register that all requests should fire the asp.net (aspx) handler, except requests for specific filetype extensions ? Of course that wont fix the problem if i choose to go with urls like /content/images/myimage123 for the images (without the extension). But i cant think of any other way to fix it. Is there a better way to solve this problem ? I have tried to set up an ignoreRoute like this routes.IgnoreRoute("content/{*pathInfo}"); where the content folder contains all the images, javascripts and stylesheets in seperat subfolders, but it doesnt seem to change anything. I can see there a many different possibilites when setting up a handler but I cant seem to figure out how it should be possible to setup one that will make it possible to use the routing module and have urls like /blog/post123 and not call the modules when requesting images, javascripts and stylesheets (etc.). Hope anyone out there can help me ? Martin

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  • Exporting tasks to 'C using DPI

    - by Alphaneo
    I have an verilog based test-bench, interfaced to 'C source using DPI. Now using DPI I am planning to write my whole firmware. To do this I need 3 things Register Read Register Write Interrupt handler As I understand, register reads and writes are tasks that I need to export from the RTL test-bench. And Interrupt handler (I implemented by importing a function from 'C). I checked most the cadence documentation and found no useful hints. I have also registered with cadence users community but it seems that I cannot ask question till they approve my registration. Just in case someone is aware of this, would appreciate their help.

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  • NullPointerException in webview.java (android.webkit.WebView$PrivateHandler.handleMessage)

    - by PacificSky
    Every few days I get a crash report for my application with the following stack trace, or small variants thereof (with different line numbers based on different android versions) java.lang.NullPointerException at WebView.java:8241:in `android.webkit.WebView$PrivateHandler.handleMessage' Handler.java:99:in `android.os.Handler.dispatchMessage' Looper.java:150:in `android.os.Looper.loop' ActivityThread.java:4293:in `android.app.ActivityThread.main' Method.java:-2:in `java.lang.reflect.Method.invokeNative' Method.java:507:in `java.lang.reflect.Method.invoke' ZygoteInit.java:849:in `com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run' ZygoteInit.java:607:in `com.android.internal.os.ZygoteInit.main' NativeStart.java:-2:in `dalvik.system.NativeStart.main' This specific stack was on Android 2.3.4 on a HTC EVO 3D PG86100 device. My app does host several webviews for some oAuth-related login scenarios. How should I go about trying to figure out how to fix this? I've tried looking on grepcode to find the source, but I'm unable to find a matching line number that makes sense. Is my Grepcode-fu weak?

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  • How are interrupts handled by dual processor machines?

    - by jeffD
    I have an idea of how interrupts are handled by a dual core CPU. I was wondering about how interrupt handling is implemented on a board with more than one physical processor. Is any of the interrupt responsibility determined by the physical board's configuration? Each processor must be able to handle some types of interrupts, like disk I/O. Unless there is some circuitry to manage and dispatch interrupts to the appropriate processor? My guess is that the scheme must be processor neutral, so that any processor and core can run the interrupt handler. If a core is waiting on a disk read, will that core be the one to run the interrupt handler when the disk is ready?

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  • Android: Crashed when single contact is clicked

    - by Sean Tan
    My application is always crashed at this moment, guru here please help me to solved. Thanks.The situation now is as mentioned in title above. Hereby is my AndroidManifest.xml <?xml version="1.0" encoding="utf-8"?> <!-- Copyright (C) 2009 The Android Open Source Project Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. --> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.android.contactmanager" android:versionCode="1" android:versionName="1.0"> <uses-sdk android:minSdkVersion="10" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> <uses-permission android:name="android.permission.MANAGE_ACCOUNTS"/> <uses-permission android:name="android.permission.WRITE_OWNER_DATA"/> <uses-permission android:name="android.permission.CAMERA"/> <uses-permission android:name="android.permission.CALL_PHONE"/> <uses-permission android:name="android.permission.GET_ACCOUNTS" /> <uses-permission android:name="android.permission.READ_CONTACTS" /> <uses-permission android:name="android.permission.WRITE_CONTACTS" /> <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/> <uses-permission android:name="android.permission.INTERNET"/> <uses-permission android:name="android.permission.CAMERA"/> <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/> <uses-permission android:name="android.permission.GET_ACCOUNTS"/> <application android:label="@string/app_name" android:icon="@drawable/icon" android:allowBackup="true"> <!-- --><activity android:name=".ContactManager" android:label="@string/app_name"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <activity android:name="ContactAdder" android:label="@string/addContactTitle"> </activity> <activity android:name=".SingleListContact" android:label="Contact Person Details"> </activity> </application> </manifest> The SingleListContact.java package com.example.android.contactmanager; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.widget.TextView; public class SingleListContact extends Activity{ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); this.setContentView(R.layout.single_list_contact_view); TextView txtContact = (TextView) findViewById(R.id.contactList); Intent i = getIntent(); // getting attached intent data String contact = i.getStringExtra("contact"); // displaying selected product name txtContact.setText(contact); } } My ContactManager.java as below /* * Copyright (C) 2009 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.example.android.contactmanager; import android.app.Activity; import android.content.Intent; import android.database.Cursor; import android.net.Uri; import android.os.Bundle; import android.provider.ContactsContract; import android.util.Log; import android.view.View; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.Button; import android.widget.CheckBox; import android.widget.CompoundButton; import android.widget.CompoundButton.OnCheckedChangeListener; import android.widget.ListView; import android.widget.SimpleCursorAdapter; import android.widget.TextView; public final class ContactManager extends Activity implements OnItemClickListener { public static final String TAG = "ContactManager"; private Button mAddAccountButton; private ListView mContactList; private boolean mShowInvisible; //public BooleanObservable ShowInvisible = new BooleanObservable(false); private CheckBox mShowInvisibleControl; /** * Called when the activity is first created. Responsible for initializing the UI. */ @Override public void onCreate(Bundle savedInstanceState) { Log.v(TAG, "Activity State: onCreate()"); super.onCreate(savedInstanceState); setContentView(R.layout.contact_manager); // Obtain handles to UI objects mAddAccountButton = (Button) findViewById(R.id.addContactButton); mContactList = (ListView) findViewById(R.id.contactList); mShowInvisibleControl = (CheckBox) findViewById(R.id.showInvisible); // Initialise class properties mShowInvisible = false; mShowInvisibleControl.setChecked(mShowInvisible); // Register handler for UI elements mAddAccountButton.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { Log.d(TAG, "mAddAccountButton clicked"); launchContactAdder(); } }); mShowInvisibleControl.setOnCheckedChangeListener(new OnCheckedChangeListener() { public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { Log.d(TAG, "mShowInvisibleControl changed: " + isChecked); mShowInvisible = isChecked; populateContactList(); } }); mContactList = (ListView) findViewById(R.id.contactList); mContactList.setOnItemClickListener(this); // Populate the contact list populateContactList(); } /** * Populate the contact list based on account currently selected in the account spinner. */ private void populateContactList() { // Build adapter with contact entries Cursor cursor = getContacts(); String[] fields = new String[] { ContactsContract.Data.DISPLAY_NAME }; SimpleCursorAdapter adapter = new SimpleCursorAdapter(this, R.layout.contact_entry, cursor, fields, new int[] {R.id.contactEntryText}); mContactList.setAdapter(adapter); } /** * Obtains the contact list for the currently selected account. * * @return A cursor for for accessing the contact list. */ private Cursor getContacts() { // Run query Uri uri = ContactsContract.Contacts.CONTENT_URI; String[] projection = new String[] { ContactsContract.Contacts._ID, ContactsContract.Contacts.DISPLAY_NAME }; String selection = ContactsContract.Contacts.IN_VISIBLE_GROUP + " = '" + (mShowInvisible ? "0" : "1") + "'"; //String selection = ContactsContract.Contacts.IN_VISIBLE_GROUP + " = '" + (mShowInvisible.get() ? "0" : "1") + "'"; String[] selectionArgs = null; String sortOrder = ContactsContract.Contacts.DISPLAY_NAME + " COLLATE LOCALIZED ASC"; return this.managedQuery(uri, projection, selection, selectionArgs, sortOrder); } /** * Launches the ContactAdder activity to add a new contact to the selected account. */ protected void launchContactAdder() { Intent i = new Intent(this, ContactAdder.class); startActivity(i); } public void onItemClick(AdapterView<?> l, View v, int position, long id) { Log.i("TAG", "You clicked item " + id + " at position " + position); // Here you start the intent to show the contact details // selected item TextView tv=(TextView)v.findViewById(R.id.contactList); String allcontactlist = tv.getText().toString(); // Launching new Activity on selecting single List Item Intent i = new Intent(getApplicationContext(), SingleListContact.class); // sending data to new activity i.putExtra("Contact Person", allcontactlist); startActivity(i); } } contact_entry.xml <?xml version="1.0" encoding="utf-8"?> <!-- Copyright (C) 2009 The Android Open Source Project Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. --> <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:layout_width="wrap_content" android:id="@+id/contactList" android:layout_height="0dp" android:padding="10dp" android:textSize="200sp" android:layout_weight="10"/> <CheckBox android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/showInvisible" android:text="@string/showInvisible"/> <Button android:layout_width="fill_parent" android:layout_height="wrap_content" android:id="@+id/addContactButton" android:text="@string/addContactButtonLabel"/> </LinearLayout> Logcat result: 12-05 05:00:31.289: E/AndroidRuntime(642): FATAL EXCEPTION: main 12-05 05:00:31.289: E/AndroidRuntime(642): java.lang.NullPointerException 12-05 05:00:31.289: E/AndroidRuntime(642): at com.example.android.contactmanager.ContactManager.onItemClick(ContactManager.java:148) 12-05 05:00:31.289: E/AndroidRuntime(642): at android.widget.AdapterView.performItemClick(AdapterView.java:284) 12-05 05:00:31.289: E/AndroidRuntime(642): at android.widget.ListView.performItemClick(ListView.java:3513) 12-05 05:00:31.289: E/AndroidRuntime(642): at android.widget.AbsListView$PerformClick.run(AbsListView.java:1812) 12-05 05:00:31.289: E/AndroidRuntime(642): at android.os.Handler.handleCallback(Handler.java:587) 12-05 05:00:31.289: E/AndroidRuntime(642): at android.os.Handler.dispatchMessage(Handler.java:92) 12-05 05:00:31.289: E/AndroidRuntime(642): at android.os.Looper.loop(Looper.java:123) 12-05 05:00:31.289: E/AndroidRuntime(642): at android.app.ActivityThread.main(ActivityThread.java:3683) 12-05 05:00:31.289: E/AndroidRuntime(642): at java.lang.reflect.Method.invokeNative(Native Method) 12-05 05:00:31.289: E/AndroidRuntime(642): at java.lang.reflect.Method.invoke(Method.java:507) 12-05 05:00:31.289: E/AndroidRuntime(642): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839) 12-05 05:00:31.289: E/AndroidRuntime(642): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597) 12-05 05:00:31.289: E/AndroidRuntime(642): at dalvik.system.NativeStart.main(Native Method)

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  • SQLDependency thread

    - by user171523
    i am in the process implementing SQLdepenency i would like to know in case of Dependency Handler exeuctues will it spun a different thred from main Process ? What will happen when the event handler triggers? Do i need to worry about any multithreds issues? public void CreateSqlDependency() { try { using (SqlConnection connection = (SqlConnection)DBFactory.GetDBFactoryConnection(Constants.SQL_PROVIDER_NAME)) { SqlCommand command = (SqlCommand)DBFactory.GetCommand(Constants.SQL_PROVIDER_NAME); command.CommandText = watchQuery; command.CommandType = CommandType.Text; SqlDependency dependency = new SqlDependency(command); //Create the callback object dependency.OnChange += new OnChangeEventHandler(this.QueueChangeNotificationHandler); SqlDependency.Start(connectionString); DataTable dataTable = DBFactory.ExecuteSPReDT(command); } } catch (SqlException sqlExp) { throw sqlExp; } catch (Exception ex) { throw ex; } } public void QueueChangeNotificationHandler(object caller, SqlNotificationEventArgs e) { if(e.Info == SqlNotificationInfo.Insert) Fire(); }

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  • Drupal FAPI: Add form elements on nodeform after validation

    - by ManuelBS
    Hi, I use Drupal 6.x. In my own module I alter each node form an add my own validation handler to it using $form['#validate'][] = 'my_own_validation_function'; Then I have the function function my_own_validation_function($form, &$form_state) { //if validation fails, i would like to rebuild the form to add additional form elements in hook_form_alter $form_state['rebuild'] = True; } My problem ist, that the validation functions does not respect my 'rebuild' = True becaus the form is never processed by hook_form_alter after validation. But I need hook_form_alter to add my additional form element. Is there a solution for my problem? Or are form_state changes in an own validation handler not respected even if I set &$form_state as a "pointer"? Thanks and cheers.

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  • NullPointerException when trying to connect to web service using kSoap method Android

    - by benjamin schultz
    My web service should be returning an integer, but every time i run the code i get the NullPointerException error. Any ideas or help would be very appreciated Here's my code: public class CGCountTest extends Activity { TextView testTV; private static final String NAMESPACE = "http://passport-america.com/webservices/"; private static final String URL = "http://localhost:11746/Service1.asmx"; private static final String SOAP_ACTION = "http://www.passport-america.com/webservices/getCGCount"; private static final String METHOD_NAME = "getCGCount"; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.soap_test); SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME); SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11); envelope.dotNet = true; envelope.setOutputSoapObject(request); HttpTransportSE androidHttpTransport = new HttpTransportSE(URL); try { androidHttpTransport.call(SOAP_ACTION, envelope); java.lang.Integer result = (Integer)envelope.getResponse(); TextView testTV = (TextView)findViewById(R.id.testTV); result.toString(); testTV.setText(result); } catch(Exception e) { testTV.setText(e.getMessage()); } } here's the logcat 06-02 15:13:36.557: WARN/dalvikvm(326): threadid=3: thread exiting with uncaught exception (group=0x4001aa28) 06-02 15:13:36.557: ERROR/AndroidRuntime(326): Uncaught handler: thread main exiting due to uncaught exception 06-02 15:13:36.876: ERROR/AndroidRuntime(326): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.pa.passammain/com.pa.passammain.CGCountTest}: java.lang.NullPointerException 06-02 15:13:36.876: ERROR/AndroidRuntime(326): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2401) 06-02 15:13:36.876: ERROR/AndroidRuntime(326): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2417) 06-02 15:13:36.876: ERROR/AndroidRuntime(326): at android.app.ActivityThread.access$2100(ActivityThread.java:116) 06-02 15:13:36.876: ERROR/AndroidRuntime(326): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1794) 06-02 15:13:36.876: ERROR/AndroidRuntime(326): at android.os.Handler.dispatchMessage(Handler.java:99) 06-02 15:13:36.876: ERROR/AndroidRuntime(326): at android.os.Looper.loop(Looper.java:123) 06-02 15:13:36.876: ERROR/AndroidRuntime(326): at android.app.ActivityThread.main(ActivityThread.java:4203) 06-02 15:13:36.876: ERROR/AndroidRuntime(326): at java.lang.reflect.Method.invokeNative(Native Method) 06-02 15:13:36.876: ERROR/AndroidRuntime(326): at java.lang.reflect.Method.invoke(Method.java:521) 06-02 15:13:36.876: ERROR/AndroidRuntime(326): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791) 06-02 15:13:36.876: ERROR/AndroidRuntime(326): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549) 06-02 15:13:36.876: ERROR/AndroidRuntime(326): at dalvik.system.NativeStart.main(Native Method) 06-02 15:13:36.876: ERROR/AndroidRuntime(326): Caused by: java.lang.NullPointerException 06-02 15:13:36.876: ERROR/AndroidRuntime(326): at com.pa.passammain.CGCountTest.onCreate(CGCountTest.java:46) 06-02 15:13:36.876: ERROR/AndroidRuntime(326): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1123) 06-02 15:13:36.876: ERROR/AndroidRuntime(326): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2364) 06-02 15:13:36.876: ERROR/AndroidRuntime(326): ... 11 more i think my url string may be the problem, but i've tried using my ip with no luck

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  • Catching java.lang.OutOfMemoryError

    - by dotsid
    Documentation for java.lang.Error says: An Error is a subclass of Throwable that indicates serious problems that a reasonable application should not try to catch But as java.lang.Error is subclass of java.lang.Throwable I can catch this type of throwable. I understand why this is not good idea to catch this sort of exceptions. As far as I understand, if we decide to caught it, the catch handler should not allocate any memory by itself. Otherwise OutOfMemoryError will be thrown again. So, my question is: is there any real word scenarios when catching java.lang.OutOfMemoryError may be a good idea? if we catching java.lang.OutOfMemoryError how can we sure that catch handler doesn't allocate any memory by itself (any tools or best practicies)? Thanks a lot.

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